[filmscanners] RE: Modern photography...

2005-05-11 Thread Austin Franklin
Hi lists, That is interesting since SCSI is a simple thing to add to a PC, you have to wonder why they went GPIB, which is a rather slow interface used for electronic instruments. National Instruments more or less owns the GPIB business. There is a very hidden form on their website where you

[filmscanners] RE: Modern photography...

2005-05-10 Thread Austin Franklin
Hi, I find ink jet prints look a bit odd in the dark areas as there is more ink plopped on the page. Have you seen a quad-tone/Piezography print, as opposed to a black-only inkjet print? I haven't seen any BW quads. Then, I suggest you do ;-) I'd like to understand why you use Tri-X

[filmscanners] RE: Modern photography...

2005-05-10 Thread Austin Franklin
Hi Alex, Austin, I noticed you use Leafscan 45. I do. So I begun to consider selling my leg and arm (and also my wife, car, house and children) :-) for Nikon LS9000 till encountered people's recommendation to go Leafscan 45 route instead. What can you say about this one ? Can it still

[filmscanners] RE: Compact Cameras

2005-04-24 Thread Austin Franklin
Hi Laurie, I am familiar with it and have heard good things about it from users; BUT that is one of the sorts of things that I consider as the EXTRA WORK required to remedy the issues I am speaking of. :-) It's not an issue if you do a couple of things...as you touch on... First, I believe

[filmscanners] RE: Compact Cameras

2005-04-24 Thread Austin Franklin
You should check out the PeizographyBW Black and White inkjet printing system from Jon Cone (and inkjetmall.com). It is really amazing. No bronzing, no metemerism, no fading, rich deep black and long tonal scale. It is really, really very good. Hi Lotusm50, Do you have the original, or

[filmscanners] RE: NikonScan negative question (was Dynamic range question)

2005-03-26 Thread Austin Franklin
Hi Roy, Did you not have the ability to manually set the setpoints with this software? Regards, Austin -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Roy Harrington Sent: Saturday, March 26, 2005 11:11 PM To: [EMAIL PROTECTED] Subject:

[filmscanners] RE: Dynamic range question

2005-03-25 Thread Austin Franklin
Hi Berry, Austin, with respect to your last sentence, isn't the point really that the contrast range of negative film is greater than slide film? I'm not sure what contrast range is, but I know what density range is. Slide film has less exposure latitude, and records on a higher density

[filmscanners] RE: 120 film scanners - which to get?

2004-10-26 Thread Austin Franklin
Tomek, I'm a bit dissappointed by the number of comments as I thought that more people would be able to give an advice on what the options are for MF film quality scanning at the price of about 1000-1200 $. If you are a bit technically inclined, I would highly recommend a Leafscan45. For

[filmscanners] RE: Understanding dpi

2004-04-25 Thread Austin Franklin
Hi Laurie, Always appreciate your butting in and corrections. :-) You are too kind ;-) If your remarks are based on the paragraph quoted alone, I will defend myself by noting that I was only extrapolating from the original statement of the analogy by the previous poster using their

[filmscanners] RE: Unavailable shortly

2004-03-28 Thread Austin Franklin
Hi Art, I just wanted to inform the members of this list that I will be unable to respond to email between about March 31st and April 12th, as I will be down in Seattle/Redmond chewing the fat with the MS teams. Out of curiosity, why? Have you tried www.mail2web.com? I find it invaluable

[filmscanners] RE: Unavailable shortly

2004-03-28 Thread Austin Franklin
Hi Art, Thanks for that link. It seems like a great service (I only hope they are being honest about the mechanics they are claiming, and that indeed they don't record passwords, etc). I have not had any problem what so ever with them (mail2web.com). I do suggest using the secure login, and

[filmscanners] RE: Understanding dpi

2004-03-25 Thread Austin Franklin
Art, That line contains a specific number of sensors across it. For simplicity, let's assume a film frame is one inch across by 1.5 wide. That would mean if the scanner claimed a 4000 dpi (really ppi or pixels per inch) resolution, the image dimensions when a file was created would be 6000

[filmscanners] RE: Better DOF than Nikon?

2004-01-08 Thread Austin Franklin
How much better are they? Will a Minolta (for instance) handle my rippled slides just fine, or will it be only somewhat better? I'm trying to decide whether I should invest in a new scanner, or fix the old one. I wish scanners had standardized DOF specs. Paul, I would be more interested in

[filmscanners] RE: Better DOF than Nikon?

2004-01-07 Thread Austin Franklin
Hi Paul, You can probably buy a near perfect Leaf45 for around $1k. They have quite good DOF. Regards, Austin My LS-2000 finally died, so I'm in the market for a replacement. However, I have tons of slides that survived a fire, and that have nasty curls to them, and the Nikon never did a

[filmscanners] RE: Pixels and Prints

2003-10-26 Thread Austin Franklin
Hi David, How can a scanner have superior spectral response to a Bayer camera? Unless all the sensors seen the same thing, they aren't seeing the same thing. In a Bayer pattern sensor, each sensing element is seeing different light, unless there is a filter over the sensing elements that

[filmscanners] RE: Pixels and Prints

2003-10-26 Thread Austin Franklin
Hi Paul, Lower noise? What you are calling lower noise is dubious. Perceived lower noise does not mean higher fidelity. How do you know it's lower noise? Have you actually done a comparison of it to the original image scene to see what was noise and what was not? The Bayer pattern

[filmscanners] RE: Pixels and Prints

2003-10-26 Thread Austin Franklin
my claim was that 900x900 pixels of a 1Ds image look a lot better than 900x900 pixels of a 4000 dpi scanned image if you print them at the same size. David, Your terms are amorphous. looks a lot better in what regard? What may look a lot better to you, or to anyone else, may not look a

[filmscanners] RE: Pixels and Prints

2003-10-26 Thread Austin Franklin
Hi Paul, when you look at the sky, you don't. How do you know you don't? But the point is that the amount of noise you get in the digital image depends upon the hardware, so it obviously can't all be actual noise coming from the sky. My old DiMage 7 is _very_ noisy, even at ISO 100. My

[filmscanners] RE: Pixels and Prints

2003-10-26 Thread Austin Franklin
Hi Paul, But that doesn't mean that every combination of film/scanner has noticeable noise generated by these things in sky regions. I assume drum scanners do much better, but they're a heck of a lot more expensive than a Canon Digital Rebel. As do high end CCD scanneras as well, and

[filmscanners] RE: Pixels and Prints

2003-10-25 Thread Austin Franklin
Hi David, How can a scanner have superior spectral response to a Bayer camera? Unless all the sensors seen the same thing, they aren't seeing the same thing. In a Bayer pattern sensor, each sensing element is seeing different light, unless there is a filter over the sensing elements that

[filmscanners] RE: Pixels and Prints

2003-10-24 Thread Austin Franklin
Hi David, Austin Franklin [EMAIL PROTECTED] writes: Because that's a different question. Someone argued that scanners produce better quality pixels because they measure all RGB, and I'm pointing out that this is wrong because scanned pixels are, in fact, worse than digital camera

[filmscanners] RE: Pixels and Prints

2003-10-23 Thread Austin Franklin
Hi David, Because that's a different question. Someone argued that scanners produce better quality pixels because they measure all RGB, and I'm pointing out that this is wrong because scanned pixels are, in fact, worse than digital camera pixels. It's not wrong. If you are talking image

[filmscanners] RE: Pixels and Prints

2003-10-23 Thread Austin Franklin
I'm very sure! The Pro 70 was the first consumer digicam with CFII and hence Microdrive compatibility, it's that old :-) It has a great lens and RAW capability so can dodge JPEG artifacts altogether. I know it's pushing the accepted wisdom, but people have mistaken the pictures for

[filmscanners] RE: Pixels and Prints

2003-10-23 Thread Austin Franklin
are unusual I suggest!! Bob Frost. - Original Message - From: Austin Franklin [EMAIL PROTECTED] You can't create detail where detail didn't exist in the original file in the first place

[filmscanners] RE: Ink-jet Print File Resolution; was: Pixels and Prints

2003-10-23 Thread Austin Franklin
Hi Preston, Bob Frost (I believe it was) advocated sending 360ppi or 720ppi files to a 720dpi desktop inkjet printer. It certainly makes intuitive sense that on a 720dpi printer, a 720ppi file would work best. Why you want to send the Epson, specifically, desktop printers 720 is because they

[filmscanners] RE: Pixels and Prints

2003-10-23 Thread Austin Franklin
Hi Austin, And just where would you put Ansel Adam's highly manipulated images in this scheme of things? Er, as highly manipulated images ;-) Regards, Austin Unsubscribe by mail to [EMAIL PROTECTED],

[filmscanners] RE: Pixels and Prints

2003-10-22 Thread Austin Franklin
Hi Bob, I think you've missed my point. All images, whatever their ppi (correct this time, Austin) I'm flattered, Bob ;-) , printed on Epson inkjets are upsampled by the Epson driver, unless they are already at the ppi which the driver requires (360ppi for wideformat printers and 720ppi

[filmscanners] RE: Pixels and Prints

2003-10-22 Thread Austin Franklin
Hi David, Then there's the reality check of actually looking at film scans and actually looking at some digital camera images and seeing how they compare. If one actually did that, one would see that, on a pixel-for-pixel basis (that is, comparing the same number of pixels), film scans are

[filmscanners] RE: Pixels and Prints

2003-10-22 Thread Austin Franklin
Hi David, I think you've misunderstood what I've said. Take a 900 x 900 pixel crop from your 5080 dpi scan and print it at 3x3 inches. Take a 900x900 crop from a 10D image and print it at 3x3 inches. Which looks better? That depends, and I am curious why you think that is of any value? If a

[filmscanners] RE: Pixels and Prints

2003-10-21 Thread Austin Franklin
Hi Eugene, 240 dpi is all that is needed. Needed? I have images that show more detail (and look better) using up to 480PPI to the printer... Regards, Austin Unsubscribe by mail to [EMAIL PROTECTED],

[filmscanners] RE: connecting scanner to computer

2003-10-21 Thread Austin Franklin
Hi Austin, The SCSI cable on my flatbed scanner is 6' long, and it's never caused me a problem. I don't believe I've ever seen anything longer, however. Single ended SCSI, as most here will be using, is spec'd for up to 3 meters. Typically, in my experience, the main issue people have with

[filmscanners] RE: Pixels and Prints

2003-10-21 Thread Austin Franklin
Hi Bob, 240 dpi is not all that is needed..., because the Epson driver upsamples that (or any other dpi you send it) to 720 dpi (desktop printers), using Nearest Neighbour type upsampling. So 720 dpi is what is needed by the driver. Just a minor clarification...both of you really mean PPI,

[filmscanners] RE: Pixels and Prints

2003-10-21 Thread Austin Franklin
Roger, Comparing digicam pixels to scanner pixels is misleading because scanner pixels are second-generation--4000 scanner pixels=2700 digicam pixels seems empirically like a good approximation, but I don't have research to prove this. So what if it's second generation? Unless you can

[filmscanners] RE: Pixels and Prints

2003-10-20 Thread Austin Franklin
Karl, Realistically, a 6mPixel camera is equiv to 4000dpi scan of 35mm film. Where on earth do you get that idea? Basicall, your claim is simply not even close. Regards, Austin Unsubscribe by mail to

[filmscanners] RE: [filmscanners_Digest] hi bit

2003-09-21 Thread Austin Franklin
Hi Tom, Hello afx, I think the slowness is primarily due to the glacial speed that the scanner transfers data to the computer. Unless you have a really old scanner that uses a parallel or serial port, I'd doubt that the issue is data transfer from the scanner to the computer. Typically, it is

[filmscanners] RE: 8 bit versus 16

2003-09-20 Thread Austin Franklin
Laurie, Don't worry about it. You will know for the future. And all the time I've been on this list, I was unaware of that as well, but in all honesty, I didn't really give it much thought... I received both this post, Peter's post, and your original post at the same time ( nemaely 9/18/03

[filmscanners] RE: 24bit vs more

2003-09-18 Thread Austin Franklin
Hi Laurie, Given the new information, I would say that Austin needs to update his familiarity with VueScan as well since much of the discussion appears to involve Vuescan since that is what many of his fellow debaters are using. You are correct that I (and apparently you as well ;-) weren't

[filmscanners] RE: 8 bit versus 16

2003-09-17 Thread Austin Franklin
Henk, Most images will do with 8 bit manipulation... Simply show me one that doesn't. but some with extreme curves or white and/or black point applied have difficulties. White and/or black points applied? ALL 8 bit images have the setpoints applied, unless you have some weird/old scanner

[filmscanners] RE: 24bit vs more

2003-09-17 Thread Austin Franklin
Austin, From what I remember Ed Hamrick saying, he uses Kodak calibration data on film types. Bob Frost. Hi Bob, From my experience, I've found that to be rather inaccurate...as I've said, development and exposure play a big part on tonality. Regards, Austin

[filmscanners] RE: 24bit vs more

2003-09-17 Thread Austin Franklin
Henk, Austin Franklin writes: I have little experience with Viewscan, No experience at all I think. Austin doesn't know how to spell the name right... My spelling of it is in fact correct. If you want to fuss about capitalization of the S, fine, but if you look through my posts, you

[filmscanners] RE: 24bit vs more

2003-09-17 Thread Austin Franklin
Henk, I have little experience with Viewscan, No experience at all I think. Austin doesn't know how to spell the name right... I sit corrected, this product that we are discussing is spelled VUEScan! Which, of course, has no bearing on much of anything...and my misspelling is all you seem

[filmscanners] RE: 8 bit versus 16

2003-09-17 Thread Austin Franklin
Henk, If you require extreme tonal curve manipulation, then I suggest you look at getting the image right on film, instead of relying on your image editing program to get it right for you after the fact. I am a travel photographer in my spare time. Most of the time I come home from a

[filmscanners] RE: 24bit vs more

2003-09-17 Thread Austin Franklin
Frank, But they don't need being picked on. You do. You're supposed to be an adult. Why not behave like one, especially in public? This is a technical forum, and I believe that most everyone here would appreciate it if you kept your personal issues out of this forum. Austin

[filmscanners] RE: 8 bit versus 16

2003-09-17 Thread Austin Franklin
Laurie, At the risk of raising Austin's ire, Au contraire! You hit the nail on the head ;-) I think that he is being more of a purist than most people in both what he regards as the proper workflow and the correct way to use scanners to capture images off of film or flat artwork and

[filmscanners] RE: 8 bit versus 16

2003-09-16 Thread Austin Franklin
Henk, I have several images on my web photo galleries who gave me a headache with posterisations in the (monochromatic) blue skies while editing. How do you know the original scanner data is any good? A photo editing program working with 16 bit/channel and feeding it with the maximum

[filmscanners] RE: 24bit vs more

2003-09-16 Thread Austin Franklin
Hi Rob, Austin Franklin [EMAIL PROTECTED] wrote: Are you saying this applies when using Vuescan - especially with negs? That is probably how every filmscanner that you or I would use, works... The issue is the software (and possibly hardware), and how it allows you to control

[filmscanners] RE: 24bit vs more

2003-09-16 Thread Austin Franklin
Frank, By low end scanners, do you mean something like the Polaroid SS4000? Because VueScan produces much better scans than Polacolor Insight. Viewscan, nor Insight, nor any scanner software produces the scans, the scanner and the scanner operator does. Perhaps it's true that for someone who

[filmscanners] RE: 8 bit versus 16

2003-09-16 Thread Austin Franklin
Frank, Arguing for 8bits is just plain silly. Silly is one word, sophistry is another. Well, in one word, arguing against using 8 bit/channel color shows ignorance. Do you have an image that you can show me that is lacking because it had tonal manipulation done in 8 bits, oh, and

[filmscanners] RE: 8 bit versus 16

2003-09-16 Thread Austin Franklin
Frank, Arguing for 8bits is just plain silly. Silly is one word, sophistry is another. Well, in one word, arguing against using 8 bit/channel color shows ignorance. Do you have an image that you can show me that is lacking because it had tonal manipulation done in 8 bits, oh, and plus the

[filmscanners] RE: 24bit vs more

2003-09-16 Thread Austin Franklin
then look at it and see what it has marked for removal. Bob Frost. - Original Message - From: Austin Franklin [EMAIL PROTECTED] The IR data is simply a fourth channel, and could easily be passed on if designed to do so

[filmscanners] RE: 24bit vs more

2003-09-16 Thread Austin Franklin
Frank, Perhaps it's true that for someone who wants the software to simply hand then a scan, Viewscan does a better job at automating the process. And I presume you think this is me? How condescending. Frank, did I say that was you? No, I didn't. Don't read things into what I say that

[filmscanners] RE: 24bit vs more

2003-09-16 Thread Austin Franklin
Hi David, The last I checked, Vuescan doesn't have a curves tool, although it's high on the author's list of things to add. What it does have support for is color calibration. Some of the scanner software has film profiling, and I've done quite a bit of work with it, unfortunately, that only

[filmscanners] RE: Re:24bit vs more

2003-09-15 Thread Austin Franklin
Hi Rob, You should either get raw data from the scanner, or do the setpoints/tonal curves correctly in the scanner software. Keep in mind, every time you re-do setpoints/tonal curves, you are degrading the data. It's just a fact of how setpoints/tonal curves work. What the

[filmscanners] RE: Re:24bit vs more

2003-09-15 Thread Austin Franklin
Hi Robert, save scanner corrected TIF (16 bit) ...scanner corrected...16 bit... Does your scanner allow setpoints and correction to high bit data? What scanner is it? This is not a property of the software, but of the scanner hardware/firmware. Can I assume that the RAW scan is just

[filmscanners] RE: 8 bit versus 16

2003-09-13 Thread Austin Franklin
Robert, You are telling me that there is no point in using 16 bit, yet working with grayscale there is! Grayscale only has one channel, and the TOTAL number of bits available is only 8 bits per pixel, for 8 bit grayscale. For color, there are three color channels available, and therefore the

[filmscanners] RE: 8 bit versus 16

2003-09-13 Thread Austin Franklin
Oh Robert, Austin Franklin wrote: I believe you're missing the point. It doesn't matter if you have a color file that has 100 bits/color, you simply aren't visually capable (because you are a human) of seeing a difference between that and an 8 bits/color file. It has nothing to do

[filmscanners] RE: 8 bit versus 16

2003-09-13 Thread Austin Franklin
Grayscale only has one channel, and the TOTAL number of bits available is only 8 bits per pixel, for 8 bit grayscale. For color, there are three color channels available, and therefore the TOTAL number of bits per pixel is actually TWENTY-FOUR using 8 bit/color pixels, instead of simply

[filmscanners] RE: 8 bit versus 16

2003-09-13 Thread Austin Franklin
I would hardly call your position enlightened. You've got clear misunderstanding of some of the concepts here, as well as apparent lack of experience. If I were you, given what I've read here, I'd strongly suggest you either try to learn something, instead of try to rationalize your

[filmscanners] RE: 24bit vs more

2003-09-13 Thread Austin Franklin
Hi Rob, I dispute the claim that if you have to do a significant amount of adjustment after scanning that you haven't done it right. It depends on the circumstances. Hum. Obviously, I disagree, and note, it's not just after scanning but after scanning and letting the scanner do setpoints

[filmscanners] RE: 8 bit versus 16

2003-09-12 Thread Austin Franklin
trying out a Minolta 5400, and the 16bit files are 233 MB! I might just accept your argument and reduce the size of my files back to about 100MB by converting to 8bit. Bob Frost. - Original Message - From: Austin Franklin [EMAIL PROTECTED] Exactly, but to claim that you need

[filmscanners] RE: 8 bit versus 16

2003-09-11 Thread Austin Franklin
Hi Preston, Great post, thanks...but again, I MUST stress, that Margulis is specifically talking about COLOR images, NOT BW, and that distinction is VERY important. Regards, Austin -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Preston Earle Sent:

[filmscanners] RE: 8 bit versus 16

2003-09-11 Thread Austin Franklin
...It doesn't apply to computer-generated images with gradients, tints, etc., either. Preston Earle [EMAIL PROTECTED] Can you scan those with a film scanner? ;-) Unsubscribe by mail to [EMAIL

[filmscanners] RE: Why DSLR ouput looks sharper?

2003-09-11 Thread Austin Franklin
Hi Ramesh, A two pixel camera will give you a perfectly sharp image. Sharpness is no indication of image fidelity (ability to reproduce accurately). It also depends on your scanner and your film and a whole lot of other things... Regards, Austin Hi, Take a picture using 6MP DSLR at full

[filmscanners] RE: Why DSLR ouput looks sharper?

2003-09-11 Thread Austin Franklin
Berry, What I want to know is: which one will make a better 11x14 or 12x16 print? That depends on what characteristics of an image YOU like. No one else can tell you what YOU might think is better (except your wife ;-). Regards, Austin

[filmscanners] RE: 8 bit versus 16

2003-09-10 Thread Austin Franklin
Hi Robert, Austin Franklin wrote: It really depends on if you are talking color or BW. For BW, there is no question, you need to use 16 bits for doing all but a minimum tonal curve adjustment, but for color, for most applications you won't see any difference using 8 bit data or 16 bit

[filmscanners] RE: 8 bit versus 16

2003-09-10 Thread Austin Franklin
Robert, Yes - 8 bit does work fine for most images, but if you really want to throw an image into some editing, then relying on 8 bits is foolhardy if you can get more to work with. BUT...you really don't GET 16 bits. You get 10, 12 or 13, and even if you *think* you get 14, you really

[filmscanners] RE: 8 bit versus 16

2003-09-10 Thread Austin Franklin
Andreas, Austin Franklin wrote: Its well documented in the 3D community that having 24 bit colour internally in 3D processing engines can result in banding in certain scenes, and thats why Nvidia and ATI have developed 32 bit engines, and more. That's an entirely different issue. I

[filmscanners] RE: 8 bit versus 16

2003-09-10 Thread Austin Franklin
Hi Art, ...and that's even concluding that the scanner is really capturing the full 16 bit depth, which many do not. I'm not sure ANY do. Do you know of a scanner that really has a usable 16 bits of data for each color? I know a few (and only a very few from what I've seen) *claim* 16 bits,

[filmscanners] RE: 8 bit versus 16

2003-09-09 Thread Austin Franklin
It really depends on if you are talking color or BW. For BW, there is no question, you need to use 16 bits for doing all but a minimum tonal curve adjustment, but for color, for most applications you won't see any difference using 8 bit data or 16 bit data. Austin -Original Message-

[filmscanners] RE: 16 vs 8bit scans

2003-02-02 Thread Austin Franklin
Ed, What I wonder is... how many of you do your adjustments in 16 vs 8bit, As a note, when you do tonal curves using your scanner driver, the curves are done to high bit data, even though you save it as 8 bit data. That is why I suggest that tonal curves be done in the driver (if the tools

[filmscanners] RE: 16 vs 8bit scans

2003-02-02 Thread Austin Franklin
I'm new to scanning, using a Nikon 4000ED on PC. I've been scanning in 14bit mode, doing some cleanup and adjustments, and resaving as 16bit TIFF masters. What I wonder is... how many of you do your adjustments in 16 vs 8bit, and does it matter for final quality either way? Also,

[filmscanners] RE: Canon IDs vs Pentax 67II

2003-02-01 Thread Austin Franklin
Hi David, I haven't tried the Portra films yet, but Reala's clearly worse than Provia for grain noise That is going to be scanner dependant. On my scanner, that does not appear to be an issue, but yes, I have heard/seen grain noise from other people. It appears that most 2700SPI scanners

[filmscanners] RE: unsubscribe filmscanners_digest

2003-02-01 Thread Austin Franklin
Wow, it certainly doesn't seem easy to unsubscribe :) Could someone be so kind as to tell me how. I thought I followed list server instructions, but no luck. Doesn't the text below this give you the recommended method of unsubscribing? Note it says listserver@... not filmscanners@..., so

[filmscanners] RE: Canon IDs vs Pentax 67II

2003-01-31 Thread Austin Franklin
I'm kidding... I am also surprised by the results. The drum scan does show a lot more resolution than his Imacon scan. And the close up shows that there is no detail on the windows from the digital while the film has a good amount. I don't think he's denying that. His (Michael R.'s) point

[filmscanners] Film spotting...

2003-01-19 Thread Austin Franklin
PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Austin Franklin Sent: Sunday, January 19, 2003 6:28 AM To: [EMAIL PROTECTED] Subject: [filmscanners] RE: [filmscanners_Digest] filmscanners DigestforFri 17 Jan, 2003 I have found

[filmscanners] RE: Newish Digital Tech

2003-01-15 Thread Austin Franklin
...but why would a PMT get “more” light, In semiconductor sensors, however, many, perhaps most, of the photons that hit the junction do absolutely nothing, so they're much less sensitive. Hi Paul, I’d believe that PMTs have a much lower noise floor than CCDs and that is the reason for the

[filmscanners] RE: Newish Digital Tech

2003-01-14 Thread Austin Franklin
Karl, That's not how the Foveon chip works. There are no filters. They are taking advantage of the fact that different light frequencies have different depth penetrations into silicon. Well, yes and no...but anyway, filtering HAS to take place, or you could not distinguish between RGB.

[filmscanners] RE: [filmscanners_Digest] filmscanners Digest for Wed 15 Jan, 2003

2003-01-14 Thread Austin Franklin
Hi Bill, So, my HP Photosmart is a consumer grade product, but I have problems with the arcane concept. What makes it arcane. Is the scanner so primitive as to be worthless? No, arcane doesn’t mean worthless. The scanner might work just fine. I said arcane because it’s a scanner that not

[filmscanners] RE: B W - Tips required...

2003-01-05 Thread Austin Franklin
Bob Geoghegan had a good reason for scanning in B W... i've always scanned in RGB... Shunith, Just as a note, your film scanner ALWAYS (unless it's a Leafscan ;-) scans in RGB no matter whether the data returned to you is converted to grayscale or left as RGB. I take it you are referring

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Hi Paul, ...However, even in 8-bit mode, having a 10-bit DAC is useful because it keeps the color lookup table curves from introducing posterization through round-off errors. If it's 8 bit data, you are feeding the DAC only 8 bits, if you are using a 10 bit DAC, then the lower two bits are

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
... Anthony's claim that handling more memory than an individual instruction can access is both innefficient and difficult is wrong on both counts. Try processing tables that straddle address-space boundaries, and you'll see. Anthony, I don't know who wrote what program you believe

[filmscanners] RE: CMYK rant (was Digital Darkroom Computer Builders?)

2002-10-23 Thread Austin Franklin
Anthony, Most of what is printed on paper in the world doesn't pass through a printer driver on a PC or Mac. Naw. MOST of what is printed on paper in the world DOES pass through a printer driver on a PC or a Mac, simply because there are MILLIONS and MILLIONS of homeowners and corporate PCs

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Hi David, 'Doze, Anthony's claim that handling more memory than an individual instruction can access is both innefficient and difficult is wrong on both counts. Accessing the whole of the address space from every instruction is hideously inefficient. Most machines provide modes where a base

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Anthohy, As you aren't a hardware engineer, it makes sense that you don't understand how this works, and the real issues involved. I've known exactly how it works for several decades now. Oh really? Austin

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Hi Paul, Yes, passing the 8 bit data through an 8 bit LUT would cause gaps/combining in anything but a linear/monotonic LUT (1:1)...it simply has to, which is the same reason to do tonal manipulations in a larger space. The video card includes a 256-entry lookup table (for each color) which

[filmscanners] RE: CMYK rant

2002-10-23 Thread Austin Franklin
Anthony, CMYK is very intimately related to scanning. Really? How so? What about it do you need to know to scan better? I believe nothing. There is nothing in making your scan that you can do differently given an intimate knowledge of CMYK or NO knowledge of it. If there is, please name

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Hi Paul, Obviously, this isn't the case in the 64-bit versions of Windows for the Alpha... Er, I don't believe there is a 64 bit Windows for Alpha... Austin Unsubscribe by mail to [EMAIL PROTECTED], with

[filmscanners] RE: Digital Darkroom Computer Builders?

2002-10-23 Thread Austin Franklin
Anthony, The mistake engineers make is in believing that address spaces will be allocated sequentially starting with byte zero and ending with byte 2^N-1. But that's not how it actually works. Engineers tend to assume that a given address space has more space than anyone will ever need and

[filmscanners] RE: CMYK rant (was Digital Darkroom Computer Builders?)

2002-10-23 Thread Austin Franklin
, Paul D. DeRocco Paulmailto:pderocco;ix.netcom.com From: Austin Franklin Naw. MOST of what is printed on paper in the world DOES pass through a printer driver on a PC or a Mac, simply because there are MILLIONS and MILLIONS of homeowners and corporate PCs

[filmscanners] RE: Compression Wide range digitalcameras

2002-10-12 Thread Austin Franklin
Tony, CCD sensors can now achieve 14 stops range, What full frame imaging CCD sensors do that in a normal camera? There are some that if you actively cool them, and control their environment, you might get that kind of response from them...but that's not really a usable device for a

[filmscanners] RE: What can you advise?

2002-09-29 Thread Austin Franklin
As both you and Henning suggested, based upon review of my files, my suggestion of mold growth at over 30% humidity was too conservative. After doing a scan of my physical paper files, I found my memory had failed me, as a reference by Kodak regarding preventing fungal growth on films

[filmscanners] RE: What can you advise?

2002-09-27 Thread Austin Franklin
I'm curious if you have any references on that. I've not had any mold growth, and it seems quite comfortable...and as I said, no camera, equipment etc. problems at all. It's been a most palatable environment. The dehumidifier is off during winter, probably from October to April.

[filmscanners] RE: What can you advise?

2002-09-26 Thread Austin Franklin
I also have a dehumidifier in my lab...I can't say if that helps a lot or not, but I don't have any dust problems on my stored film. On film I simply leave lying around, perhaps. Actually, a moderate humidity level keeps dust levels down, by reducing static, and by making the dust

[filmscanners] RE: What can you advise?

2002-09-26 Thread Austin Franklin
in the scanner (LS-2000), and find there's still crap all over them if I turn off ICE. -- Ciao, Paul D. DeRocco Paulmailto:[EMAIL PROTECTED] From: Austin Franklin Well, I'd say if you want the best results from any scanner, simply keep your

[filmscanners] RE: Which SCSI Card for SS4000

2002-09-10 Thread Austin Franklin
Henning, SCSI is often not logical when connections get a bit complicated, or even when they're simple. On my last computer I had 4 SCSI chains; 2 simple ones allowing 7 devices and 2 of the 15 device kind. Some combinations needed termination in the middle, There is never any reason to

[filmscanners] RE: Which SCSI Card for SS4000

2002-09-09 Thread Austin Franklin
Tom, The input is a SCSI 1 cable (50 pin) the output (to another SCSI device) is 25 pin. I believe either can be used to connect to the SCSI card. Austin Unsubscribe by mail to [EMAIL PROTECTED], with

[filmscanners] RE: Which SCSI Card for SS4000

2002-09-09 Thread Austin Franklin
that there was a type in the instructions. Both cables were okay so I don't know what the problem might be. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Austin Franklin Sent: Monday, September 09, 2002 3:33 PM To: [EMAIL PROTECTED] Subject

[filmscanners] RE: Which SCSI Card for SS4000

2002-09-09 Thread Austin Franklin
Hi Tom, ...my SCSI card is device 7 (the maximum) thus auto termination is working. You know that device ID number and auto termination aren't linked at all. The SCSI device ID can be anything, the order only matters for boot if you don't specify a specific device to boot from...at least

[filmscanners] RE: Dynamic range

2002-09-04 Thread Austin Franklin
But ignoring valid points is precisely what you do, and if you disagree I will happily repost many items you have never answered. Would you like me to do that? Julian I kinda would. I'd like to see exactly where you each stand at this point. Damn, Toddyou REALLY want to talk

[filmscanners] RE: Dynamic range -- resolution/levels

2002-09-02 Thread Austin Franklin
Roy, All the stuff about number of levels and resolution are artifacts of the digital process and not part of the DyR concept which existed way before the word digital was even coined. ... I believe the concept of resolution is inherent in the concept of dynamic range. Whether

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