Re: [pinhole-discussion] Thanks for all the prayers!!!

2001-04-07 Thread LarryBullis
 I only was able to shoot two pinhole photos before they put me under for
 the surgery...

I knew you were going to do that.  Did you have them mount a pinhole in your 
skull to project an image on your brain?  

So glad to see you are not only over that one, but still pinholin'.

Larry Bullis

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Re: [pinhole-discussion] Shim Stock

2001-04-07 Thread LarryBullis
Lee, 

I had to call 3 or 4 stores in one city before I found one that had it.  The 
store that had it was in the same chain as those that didn't (NAPA) and he had 
a huge roll, snipped it off and sold it by the inch.  In another town, they 
(again, same chain) didn't have brass, but had copper.  That's maybe even a bit 
better because it is easier to darken than brass.  If you want the best of all 
materials, go to a jeweler and have them roll you out a bit of 0.002 silver.

pinhole-discussion@p at ??? wrote:

 
 From: Lee W. Potts l...@leepotts.com
 
 I just started w/pinhole photography and I want to make a better
 pinhole. For my first try I used aluminum from a pie plate. I'd
 like to get brass shim stock, but all the auto supply places
 around here have never heard of it. They look at me like I'm nuts
 when I ask for it. Do they know it as something else? Is there a
 better place to find it?
 
 Lee,
     That is its name.  There are many places where to get it from.  Check 
 this page http://hornepayne.lakeheadu.ca/~gdedemet/motors56/motors11.html
 
 Another place is DoAll ( www.doall.com ), I don't think they mailorder but 
 you may have a store near you.
 
 Guillermo
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[pinhole-discussion] Thanks for all the prayers!!!

2001-04-07 Thread Tom Lindsay
Hello All,

I'm out of the hospital and everything is looking good. I want to thank
all of you who said a prayer for me, I was pretty distraught and needed
a backup so to speak. The doctors removed the cancer from the back of
my skull, but couldn't find the mass that was supposed to be in my
trachea. It may be due to all the prayers that were said. I'll have to
have another CT scan to verify that it is indeed not there anymore.
I only was able to shoot two pinhole photos before they put me under for
the surgery, I hope they come out looking good. Yeah I'm a nut when it
comes down to doing pinhole and I'll shoot on every chance I get.
Thanks again for the prayers and I'll keep you posted as time will
allow.

Keep on Pinholin',
Tom




Re: [pinhole-discussion] guitarbody pinhole

2001-04-07 Thread Chris Peregoy
So you are not using the sound hole and will be making a hole for the
pin hole where the neck attached. I would think that the resulting image
would look somewhat like what I get with my oatmeal box cameras. The
problem will be that on the curve of the lower half of the guitar body
the curve under cuts the light so you will get shadows and the upper
ends of paper will be much closer to the pinhole and will be much darker
then what is imaged on the bottom. I would think it might be easier to
make this shape camera out of a guitar case with the neck part cut off.
It would allow you to have a large flap and clasps for sealing it up.
Good luck.
--
Chris Peregoy | http://www.gl.umbc.edu/~peregoy | http://imda.umbc.edu/




[pinhole-discussion] guitarbody pinhole

2001-04-07 Thread John Ptak
Thanks for the response.  WHat I'm really looking for
is if someone has a sense of what the neg might look
like--and let's assume that all of the tech issues are
solved...The body of the guitar looks really
interesting from a pinhole point of view.  Let's say
that the ocal length is 400mm to the lateral end of
the base of the guitar, and that we place the paper
(in sections) along 75% of the interior.  That means
that there should be some bit of oddness happening at
or around the points where the body and paper is
somewhat indented. I could just go head and turn this
ruined child's gutiar into a cam and see for myself,
but being new to this medium I wanted to try and
figure out what the resultant image might look like
before going thru the hassle, or if someone with
experience could help me along in how to visual the
outcome without resorting to (yikes) some of the
semi-advanced math of geometrical optics.   My
thinking is that the image might be exhaustedly
distorted at the point where the body of the guitar
bends in on itself...but maybe not?  
I'd certainly appreciate any insight on this little
noodle of a problem.
Thanks alot.
John Ptak

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Re: [pinhole-discussion] Shim Stock

2001-04-07 Thread Fam. Penate

From: Lee W. Potts l...@leepotts.com



I just started w/pinhole photography and I want to make a better
pinhole. For my first try I used aluminum from a pie plate. I'd
like to get brass shim stock, but all the auto supply places
around here have never heard of it. They look at me like I'm nuts
when I ask for it. Do they know it as something else? Is there a
better place to find it?


Lee,
   That is its name.  There are many places where to get it from.  Check 
this page http://hornepayne.lakeheadu.ca/~gdedemet/motors56/motors11.html


Another place is DoAll ( www.doall.com ), I don't think they mailorder but 
you may have a store near you.


Guillermo
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Re: [pinhole-discussion] Shim Stock

2001-04-07 Thread Chris Peregoy
I get it from Utrecht, my local art supply store. The package is made by
KS Engineering package number 258 and includes .001, .002, .003 and
.005 brass shims. Its in a section with model making parts, miniature
trees and grass colored moss. You also might try a craft or hobby store.

Lee W. Potts wrote:

 Hi Folks,

 Great list.

 I just started w/pinhole photography and I want to make a better
 pinhole. For my first try I used aluminum from a pie plate. I'd
 like to get brass shim stock, but all the auto supply places
 around here have never heard of it. They look at me like I'm nuts
 when I ask for it. Do they know it as something else? Is there a
 better place to find it?

 Thanks,
 Lee

 Lee W. Potts
 l...@leepotts.com
 www.LeePotts.com

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Chris Peregoy | http://www.gl.umbc.edu/~peregoy | http://imda.umbc.edu/




[pinhole-discussion] Shim Stock

2001-04-07 Thread Lee W. Potts
Hi Folks,

Great list.

I just started w/pinhole photography and I want to make a better
pinhole. For my first try I used aluminum from a pie plate. I'd
like to get brass shim stock, but all the auto supply places
around here have never heard of it. They look at me like I'm nuts
when I ask for it. Do they know it as something else? Is there a
better place to find it?

Thanks,
Lee

Lee W. Potts
l...@leepotts.com
www.LeePotts.com




Re: [pinhole-discussion] Calculating f-stop for pinhole camera

2001-04-07 Thread Fam. Penate




From: Rune Tallaksen tall...@alfanett.no



Mount the pinhole sheet in a slideframe, place it in a slideprojector.
Then by measuring the distance from the pinhole in the slideframe and to 
the
projector screen and the diameter of the projected pinhole on the screen, 
by

means of a formula it was possible to find the exact pinhole size. Anybody
out there that know which formula (s) to use??


Do this:

Mount your pinhole in a slideframe and project it, focus your projector and 
measure the pinhole projected diameter.


Without altering your projector set up, find the Magnification your 
projector is set for: mount an empty slideframe in the projector (do not 
touch the focus) and measure its projected size.


Remove the empty slideframe and measure its size.  The magnification will be 
given by:


Magnification = Projected slideframe size / Actual slideframe size

Your pinhole diameter will be given by:

Pinhole diameter = Pinhole projected diameter / Magnification

NOTE: use the same units of measure in all the steps.

Guillermo


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Re: [pinhole-discussion] Calculating f-stop for pinhole camera

2001-04-07 Thread Kosinski Family
You can use the formula for similar triangles:
(the distance from the lamp to the slide) divided by (the distance from the
lamp to the wall)
EQUALS
(the size of the pinhole on the slide) divided by (the size of the pinhole
on the wall)
You should be able to increase the accuracy by removing the projector lens
and forming the largest image possible on the wall.
Jim K
www.paintcancamera.com

- Original Message -
From: Rune Tallaksen tall...@alfanett.no
To: pinhole-discussion@p at ???
Sent: Saturday, April 07, 2001 10:04 AM
Subject: [pinhole-discussion] Calculating f-stop for pinhole camera


 When making a pinhole by means of a needle one usually know the
pinholesize
 by the needle size used.
 I seem to recall that there is another way to do get to know the exact
 pinholesize but cannot remember the formula used. The method was described
 as follows.
 Mount the pinhole sheet in a slideframe, place it in a slideprojector.
 Then by measuring the distance from the pinhole in the slideframe and to
the
 projector screen and the diameter of the projected pinhole on the screen,
by
 means of a formula it was possible to find the exact pinhole size. Anybody
 out there that know which formula (s) to use??

 Rune Tallaksen
 Norway


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[pinhole-discussion] Calculating f-stop for pinhole camera

2001-04-07 Thread Rune Tallaksen
When making a pinhole by means of a needle one usually know the pinholesize
by the needle size used.
I seem to recall that there is another way to do get to know the exact
pinholesize but cannot remember the formula used. The method was described
as follows.
Mount the pinhole sheet in a slideframe, place it in a slideprojector.
Then by measuring the distance from the pinhole in the slideframe and to the
projector screen and the diameter of the projected pinhole on the screen, by
means of a formula it was possible to find the exact pinhole size. Anybody
out there that know which formula (s) to use??

Rune Tallaksen
Norway




Re: [pinhole-discussion] Sheet Film Holders

2001-04-07 Thread William Erickson
In addition to using the holders, you'll have to devise a method for
securing them to your camera in a light tight fashion. I build wooden boxes
and use a wood pressure plate sprung with the springy things you  get in
metal frame hardware kits.
- Original Message -
From: George L Smyth glsm...@yahoo.com
To: pinhole-discussion@p at ???
Sent: Friday, April 06, 2001 5:27 PM
Subject: Re: [pinhole-discussion] Sheet Film Holders



 --- Bruce Klemz bkl...@vax2.winona.msus.edu wrote:
  I'm new to pinhole, mainly using a 35mm with a body cap. I've also built
one
  of the simple cardboard box versions using 4x5 paper negs and love the
  results. To get more phototaking (and less walking), I'd like to build
one
  that uses the 4x5 sheet film holders I read about here. Any advice
regarding
  where I can find some inexpensive source for them (I'm located in rural
  Minnesota and the web is my best access to the real world!). Thanks in
  advance, Bruce.

 I would think that eBay would be the logical place to look.

 Cheers -

 george

 =
 Handmade Photographic Images
 http://members.home.net/hmpi/

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Re: [pinhole-discussion] guitar-cam

2001-04-07 Thread William Erickson
We will only know the answer if you go ahead and do it. please do!
- Original Message - 
From: John Ptak jfjp...@yahoo.com
To: pinhole-discussion@p at ???
Sent: Friday, April 06, 2001 11:21 PM
Subject: [pinhole-discussion] guitar-cam


 Howdy all.  I'm wondering about the image that might
 be produced by a camera made from a child's guitar. 
 First, let's assume that the paper-holding and light
 securing problems are solved.  The guitar is, well,
 guitar-shaped; the aperture is at one lateral end with
 a focal length of say 400mm, and I'd like to place the
 paper neg nearly all the way around the interior of
 the guitar's hourglass shape.  Any thoughts on what
 this might look like?  Thanks a bunch.  John Ptak
 
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Re: [pinhole-discussion] PC/MAC compatibility question

2001-04-07 Thread Colin Talcroft
Tina,

The file format shouldn't be a problem. Macs can
create and read both tiff and jpeg files, although i
do know that there is an IBM tiff and a Mac tiff
format. Nevertheless, as long as the person using the
files has access to reasonably good softare, they
should be convertible. The readability of the disc is
likely to be a bigger problem. Sounds like you are
going from a PC? I know that with my Mac equipment I
can burn PC-readable discs. Good software on your side
therefore should allow you to format a disc the other
way around, in a Mac format. There are also programs,
I believe, that will burn a hybrid disc with the same
data readable by both platforms.

Hope that helps.

Colin

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Re: [pinhole-discussion] PC/MAC compatibility question

2001-04-07 Thread Pam Niedermayer
Jpeg's are viewable by both Macs and Windows PCs, regardless of which
OS on which they were created. However, on burning the CD you have to
worry about which system will be used to read it. Your CD burner
software should know this and provide ISO 9660 File Format, maybe one
or two others, I forget. Alternatively, it would be possible to put
everything in html on the CD, complete with links, so you'd have a
confined web site. Your confusion results from mixing up graphics
formats with file formats.

Pam

Tina Martin wrote:
 
 Can anyone on the list tell me if j-peg images saved in pc format and burned
 on a CD-Rom in a PC would be readable by a MAC cd-rom reader? I have to send
 some images on CD and need to know if (#1)I have to re-save all the tiff
 files as MAC format jpegs before burning or not, and (#2) if a CD burned in
 a PC is readable by a MAC, and in which format.
 
 I know I could not read cd-roms of tiff files burned on a mac on my pc, but
 could read zip files of tiffs created on my pc on a mac!
 In other words, I'm totally confused. (as usual) Sorry this is a bit off
 topic, but I'm sure someone on the list has the answer. I really don't want
 to track down 80 or so tiff and psd files to re-do when I have already
 J-pegd them once.
 Tina
...

-- 
Pamela G. Niedermayer
Pinehill Softworks Inc.
600 W. 28th St., Suite 103
Austin, TX 78705
512-236-1677
http://www.pinehill.com



Re: [pinhole-discussion] Sheet Film Holders

2001-04-07 Thread Figurefoto
In a message dated 4/6/01 12:57:31 PM Pacific Daylight Time, 
bkl...@vax2.winona.msus.edu writes:


 I'm new to pinhole, mainly using a 35mm with a body cap. I've also built one
 of the simple cardboard box versions using 4x5 paper negs and love the
 results. To get more phototaking (and less walking), I'd like to build one
 that uses the 4x5 sheet film holders I read about here. Any advice regarding
 where I can find some inexpensive source for them (I'm located in rural
 Minnesota and the web is my best access to the real world!). Thanks in
 advance, Bruce.
 

I actually have 2 of them on ebay right now.They will probably only bring in 
6-7 dollars a peice.Let me know if you need a link.

 Harry 
 A HREF=http://www.figurefoto.com/;Figurefoto.com/A


[pinhole-discussion] PC/MAC compatibility question

2001-04-07 Thread Tina Martin
Can anyone on the list tell me if j-peg images saved in pc format and burned 
on a CD-Rom in a PC would be readable by a MAC cd-rom reader? I have to send 
some images on CD and need to know if (#1)I have to re-save all the tiff 
files as MAC format jpegs before burning or not, and (#2) if a CD burned in 
a PC is readable by a MAC, and in which format.


I know I could not read cd-roms of tiff files burned on a mac on my pc, but 
could read zip files of tiffs created on my pc on a mac!
In other words, I'm totally confused. (as usual) Sorry this is a bit off 
topic, but I'm sure someone on the list has the answer. I really don't want 
to track down 80 or so tiff and psd files to re-do when I have already 
J-pegd them once.

Tina

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Re: [pinhole-discussion] (no subject)

2001-04-07 Thread B2MYOUNG
In a message dated 4/6/01 4:54:22 PM, pen...@home.com writes:

 Another of the lensless processes is ZonePlate imaging. 

and cliche verre.
leezy



[pinhole-discussion] guitar-cam

2001-04-07 Thread John Ptak
Howdy all.  I'm wondering about the image that might
be produced by a camera made from a child's guitar. 
First, let's assume that the paper-holding and light
securing problems are solved.  The guitar is, well,
guitar-shaped; the aperture is at one lateral end with
a focal length of say 400mm, and I'd like to place the
paper neg nearly all the way around the interior of
the guitar's hourglass shape.  Any thoughts on what
this might look like?  Thanks a bunch.  John Ptak

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