PDA

View Full Version : Calumet Bellows Extension Calc Disk...


Capocheny
9-Dec-2005, 12:18
Greetings,

I have one of those two-piece plastic devices from Calumet Photo that I used to determine bellows extension factors on my 4x5. [

I believe a version of this was also posted here on this site at one point in time... QuickDisc?]

Can anyone think of any reason why it can't be used with a 5x7 camera in the same manner? Or, for that matter, an 8x10?

Thanks in advance for any insights.

Cheers
Steve Hamley
9-Dec-2005, 12:24
Nope, works fine. These things work on magnification, which is independent of format. I've always used the Quick Disc, it's free and better designed being round.

http://www.salzgeber.at/disc/

Steve
Alan Davenport
9-Dec-2005, 15:04
It works exactly the same on any format, from the largest ULF all the way down to 35mm and smaller. Or it would, if you could get the ruler on the screen in a 35mm...
Steve Hamley
9-Dec-2005, 15:50
Alan,

Or just take a Sharpie and put the scale on the DSLR sensor... :D

Steve
Capocheny
10-Dec-2005, 17:01
Hi Steve, Alan,

Thanks for the input... much appreciated. :)

Have a wonderful holiday season and all the best in 06.

Cheers