yatish

What focal lengths would you like to do this with ? Was your intention to use the Zork adapter as a stitching adapter, in order to combine 2 images, or as a shift adapter for a single image captured by the 5D ?

Mike Collett at Betterlight has put together a great explanation of the difference between film resolution in lp/mm, and resolution limits due to film grain size. Turns out that while a rating of 125 lines/mm is technically correct for film, it is not really usable for decent photography. At that level of detail, the grain size overwhelms the image being captured. This is a hard to understand without the sample images Mike put together. I am sure he would make them available to those who really want to know.

 

regards,

Yatish

For those who are interested in this approach, there is a hardware solution available from www.camerafusion.com, that allows composition and focus using a traditional ground glass, as well as the ability to produce the tiles with a DSLR camera.

 

regards,

Yatish Kumar

Hi Keith,

by using DSLR cameras for image capture, it is possible to overcome any exposure time limitations, associated with line scan systems. However this approach comes with additional constraints on having to stitch multiple images, wide angle lens limitations etc..

 

You can find more information on this approach at www.camerafusion.com

 

Non scanning 4x5 sensors are prohibitive in cost. However DALSA, is able to stitch together several CCD's to form large sensor areas, at a price.

 

regards,

Yatish

hello,

at camerafusion (www.camerafusion.com) we provide a solution for doing this type of thing as well. In our solution we provide a new ground glass, which can be used for composition as well as critical focus of the complete image capture area ( 6cm x 12cm ). Without this is it difficult to apply camera movements, and check focus through the limited view of the DSLR's view finder.

 

regards,

Yatish

Thanks! I had noticed the 3 screws, but had assumed they registered into tapped holes. I will loosen the screws and see what happens.

 

Yatish

Hello,

could someone confirm or correct me on the following point ? It

appears that there is no specific mechanism in a T-Mount adapter to

ensure the orientation of the lens with respect to the body when the

lens is mounted via a T-mount adapter. As opposed to a typical

bayonet mount like the Nikon F-mount, where the lens ends up oriented

in a consistent manner, with the aperture numbers on the top etc..

 

thanks,

Yatish

as long as there is no reported issue with the card functioning in the D70, I found that the deep buffer allows plenty of continuous shooting even with slower old cards. I have both a San Disk Ultra II, and San Disk ("original" blue and red packaging) 256Meg card. Have never run out of continuous shooting capacity.

Mr. Kobayashi. I hope you are listening. Mr. V.P of Marketing at Nikon, I hope you realize Mr. Kobayashi is listening.

Thanks Chris. It's been plaguing me for a while now. I agree it's a bug. The firmware should not get tied up if the shutter speeds don't require the extra processing. I just tried it without NR, works like a charm. Can't wait to chase my kids around the house.

Hello,

I am finding on my D70 that the only way to get to 3 frames per

second is to shoot in raw or raw+jpeg mode. All other combinations

of jpeg only settings result in something slower that sounds like 2

frames per second. All this is tested with a San Disk Ultra II

card, moreover at the slower rate the built in frames buffer doesn't

come close to being exhausted, and the last frame is written into

the card in no time at all. So I don't think it is a buffering

issue. I was wondering if anyone else was having a similar

experience. In particular if their serial number was close to

5000789. Firmware version is 1.0, 1.1

 

thanks

Yatish

for 4x6 or 8x12 prints jpeg should be just fine. The NEF post processor in photoshop does not reduce the aliasing noise left in the NEF file to quite the same extent as the JPEG fine. By the time this further noise reduction is done, the raw file gets reduced to the same level of quality as the JPEG fine. If 16 bit processing is important, then NEF is the only way to go.

 

The following article explains the extra processing that is required on NEF files, before they can be used.

 

http://www.nikon.co.jp/main/eng/portfolio/technology_e/image_processing_e/

I've shot a lot of it, and processed at a minilab. There is a colour cast, but it is generally pleasing and not a bad way to get proofs. I was a staunch supporter of Ilford and tried to stick with XP2 Super, but the kodak product was way better at minilabs.