Re: Gigabyte panoramas

2007-07-01 Thread Toine
http://www.digitalcamerareview.com/default.asp?newsID=2979

They claim it will cost you $100. The software and diy instruction are
free of charge.


On 7/1/07, Digital Image Studio [EMAIL PROTECTED] wrote:
 On 01/07/07, Bill Lawlor [EMAIL PROTECTED] wrote:
  I noticed a small article about this system in the new July/August Photo
  Techniques. The article speculated the consumer version might be a few
  hundred dollars! I think that must be way off. I didn't buy the magazine
  because the line at Border's was about a 20 minute wait. Maybe somebody on
  the list has the magazine.

 Maybe the software side, but that's still very inexpensive. Even the
 most basic automated head which could do this kind of work wouldn't be
 cheap, the manual options are relatively expensive.  The manual
 Manfrotto Spherical Panoramic Head Kit retails at about US$580 from
 BH.

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 Rob Studdert
 HURSTVILLE AUSTRALIA
 Tel +61-2-9554-4110 UTC(GMT) +10 Hours
 [EMAIL PROTECTED]
 http://picasaweb.google.com/distudio/PESO
 http://home.swiftdsl.com.au/~distudio//publications/
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Re: Gigabyte Panoramas

2007-06-30 Thread AlunFoto
Thanks for the link, Bill.
First thing that struck me when I saw the prototype photo is that this
must be an adaptation of a sky-tracker device, you know the stuff that
backyard astronomers use to move their telescope in sync with Earth's
rotation.

Secondly, the prototype looks a bit under-dimesioned for an SLR...

Will be interesting to see how much they plan to charge for it.

Jostein

2007/6/30, Bill Lawlor [EMAIL PROTECTED]:
 This camera platform produces awesome images with virtually any digital
 camera. Check out the sample panoramas at the web site. Zoom in for amazing
 details. My understanding is that the platform moves the camera to create a
 mosaic that is combines into the final image. I want one!
 http://www.cs.cmu.edu/~globalconn/gigapan.html

 Bill Lawlor



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Re: Gigabyte Panoramas

2007-06-30 Thread Sandy Harris
On 6/30/07, Bill Lawlor [EMAIL PROTECTED] wrote:

 ... I want one!
 http://www.cs.cmu.edu/~globalconn/gigapan.html

Me too!  But what will it cost?

Also, what lens would be optimal for panoramas?

My guess is not really long because then you'd
need too many shots, and not really wide because
you'd get too much distortion.

But in between, say 24-105, I'm not certain. Wider
means fewer shots and better depth of field, but
the longer lens gets more detail.

Any comment from those with panoramic experience?

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Quanzhou, Fujian, China

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Re: Gigabyte Panoramas

2007-06-30 Thread Digital Image Studio
On 30/06/07, Sandy Harris [EMAIL PROTECTED] wrote:
 On 6/30/07, Bill Lawlor [EMAIL PROTECTED] wrote:

  ... I want one!
  http://www.cs.cmu.edu/~globalconn/gigapan.html

 Me too!  But what will it cost?

 Also, what lens would be optimal for panoramas?

 My guess is not really long because then you'd
 need too many shots, and not really wide because
 you'd get too much distortion.

 But in between, say 24-105, I'm not certain. Wider
 means fewer shots and better depth of field, but
 the longer lens gets more detail.

 Any comment from those with panoramic experience?

It's possible to shoot panos with virtually any lens (rectilinear or
fisheye) and pretty much any focal length as the stitching software
geometrically transforms each image to match adjacent images in order
to produce a composite image with the chosen projection type.

http://www.cambridgeincolour.com/tutorials/image-projections.htm

The system shown relies on a long lens not to minimise distortion but
to provide a sufficiently limited field of view to allow the
generation of a composite image with the desired resolution. In the
case of a GigaPixel image There will be literally a hundred plus shots
taken (consider the number of shots that would be required if shooting
10MP per shot less 30-50% of the total image area for overlap). The
automated head makes it possible through as great precision is
required when shooting many shots of limited FOV.

There are a few other very similar automated solutions already
available on the market (some for three years or more) the problem is
generally in the limitations of the stitching and image post
processing applications, few off the shelf solutions can handle that
volume of data. If this crowd can deliver a complete package at a
reasonable cost then they may achieve their goals. However I can't see
it being under US$3-4K before even considering camera or lens given
the prices of competing hardware alone.

http://www.peaceriverstudios.com/pixorb/index.html
http://www.marc-kairies.de/english/MK_PanoMachine.html

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Re: Gigabyte Panoramas

2007-06-30 Thread William Robb

- Original Message - 
From: Sandy Harris
Subject: Re: Gigabyte Panoramas



 Any comment from those with panoramic experience?


I've done a few panos, I think Rob and Mark are the stitched pano expert 
here. My solution is pretty basic, and works well up to a couple of dozen 
exposures. I choose a focal length that will require about a dozen or more 
exposures to take in everything I want in the frame, and then I shoot a few 
test exposures of the scene to check histograms, then I start at one corner 
and start shooting (camera in manual), making sure I overlap the frames by 
25-35%.
I haven't checked to see how many exposures I can force into a multi frame 
pano this way, I would expect if I really wanted to I could shot several 
dozen frames and combine them.
I'm fairly new to this stuff, as I didn't have good post processing tools 
for it until recently.
I discovered that Photoshop CS3 does a very good job with the photomerge 
tool, much better than prior versions.
I believe Photoshop will allow up to 200,000 pixels on a side.
The processing times to build these things is huge if you don't have a fast 
machine with lots of RAM.
Something Rob and I were discussing the other day was lens setting. He finds 
that setting the lens aperture with the ring on the lens gives more 
consistent exposures, so your best lens for the job might be one with an 
aperture ring.

William Robb 


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Re: Gigabyte Panoramas

2007-06-30 Thread David Savage
I've managed to successfully stitch 81 frames (5 rows) to create a 360
degree spherical pano. It took a lot of processing time though.

BTW, here is one of the panos I took on my recent trip:

http://picasaweb.google.com.au/OzSavage/Panoramas/photo?authkey=_urLvoPdgjo#5081887691195224994

Dry Island Buffalo Jump Provincial Park, Alberta, Canada
K10D, FA 77 Ltd,, 24 frames in 3 rows handheld.

Cheers,

Dave

On 6/30/07, William Robb [EMAIL PROTECTED] wrote:
 I haven't checked to see how many exposures I can force into a multi frame
 pano this way, I would expect if I really wanted to I could shot several
 dozen frames and combine them.

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Re: Gigabyte Panoramas

2007-06-30 Thread Bob Sullivan
Sandy,
Check on the links in the gigapan page.  There is a page of samples
including one towards the end with the Golden Gate Bridge in San
Francisco on the left.  It shows the park at the base of the bridge,
people, and the parking lot at the base of the bridge.  On the right
of the picture, it shows a bit of the parking lot and traffic lanes.
I noticed half a bus and the front headlamps of a car.  Look carefully
and you can see about what the size of a single cell is.  Telephoto
side I would guess.
Regards, Bob S.

On 6/30/07, Sandy Harris [EMAIL PROTECTED] wrote:
 On 6/30/07, Bill Lawlor [EMAIL PROTECTED] wrote:

  ... I want one!
  http://www.cs.cmu.edu/~globalconn/gigapan.html

 Me too!  But what will it cost?

 Also, what lens would be optimal for panoramas?

 My guess is not really long because then you'd
 need too many shots, and not really wide because
 you'd get too much distortion.

 But in between, say 24-105, I'm not certain. Wider
 means fewer shots and better depth of field, but
 the longer lens gets more detail.

 Any comment from those with panoramic experience?

 --
 Sandy Harris
 Quanzhou, Fujian, China

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Re: Gigabyte panoramas

2007-06-30 Thread Bill Lawlor
I noticed a small article about this system in the new July/August Photo 
Techniques. The article speculated the consumer version might be a few 
hundred dollars! I think that must be way off. I didn't buy the magazine 
because the line at Border's was about a 20 minute wait. Maybe somebody on 
the list has the magazine.

Bill 



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Re: Gigabyte panoramas

2007-06-30 Thread Digital Image Studio
On 01/07/07, Bill Lawlor [EMAIL PROTECTED] wrote:
 I noticed a small article about this system in the new July/August Photo
 Techniques. The article speculated the consumer version might be a few
 hundred dollars! I think that must be way off. I didn't buy the magazine
 because the line at Border's was about a 20 minute wait. Maybe somebody on
 the list has the magazine.

Maybe the software side, but that's still very inexpensive. Even the
most basic automated head which could do this kind of work wouldn't be
cheap, the manual options are relatively expensive.  The manual
Manfrotto Spherical Panoramic Head Kit retails at about US$580 from
BH.

-- 
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110 UTC(GMT) +10 Hours
[EMAIL PROTECTED]
http://picasaweb.google.com/distudio/PESO
http://home.swiftdsl.com.au/~distudio//publications/
Pentax user since 1986, PDMLer since 1998

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