PDA

View Full Version : My 35" Red Dot Now In Copal 3


Richard K.
22-Oct-2008, 20:05
A few weeks ago, I asked forum members if it was possible to mount a barrel 35" Red Dot Artar into a Copal 3 shutter. It turns out that it was and I just today got the finished result back from KHB Photografix. I posted a couple of quick photos as a final post near the end of the original thread:

http://www.largeformatphotography.info/forum/showthread.php?t=39677

but have a much better quality photo to show you below:

http://i300.photobucket.com/albums/nn15/RichardK47/35inRedDotArtar.jpg

So, it can be done and the result is not an overwhelmingly huge lens. There are more comments and specs in my post in the thread cited above. Thanks all!
Turner Reich
22-Oct-2008, 20:16
What size is the board?

Thank you.
Richard K.
22-Oct-2008, 20:58
What size is the board?

Thank you.

It's a standard 140mm (~5.5") SInar board.
chilihead
22-Oct-2008, 22:23
NICE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ..... Now you need...... a.....12x20 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Walter Calahan
23-Oct-2008, 05:15
Very cool. What a beauty.
Jim Galli
23-Oct-2008, 06:40
Love the f360 aperture scale. What is the max aperture necked down to? I think I see 19.8? What camera with 44 inch bellows do you use this beastie on? Also curious if Copal ever spec'd how much weight the #3 can mechanically tolerate.
Richard K.
23-Oct-2008, 06:41
NICE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ..... Now you need...... a.....12x20 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Don't think that that hasn't occurred to me! Well, my wife says it hasn't...
I have a mini 12x20 ordered (7x11) but this lens is for the Chamonix 14x17 which I'm getting any second now...:)

How's the weather in Calgary?
Richard K.
23-Oct-2008, 06:50
Love the f360 aperture scale. What is the max aperture necked down to? I think I see 19.8? What camera with 44 inch bellows do you use this beastie on? Also curious if Copal ever spec'd how much weight the #3 can mechanically tolerate.

You see well Jim; it IS f/19.8. This lens is for a reversible 14x17 Chamonix I've got coming but if need be I can get a 12x20/16x20 etc. :D
As far as weight tolerance goes, this lens including shutter and lens board weighs 1710 g and the 550 XXL weighs 2460 g so I would guess that the Copal can tolerate at least 2500 g and my little 35"er is no problem. Its heft is like a 360 Plasmat and it has a much smaller footprint on the board than I expected so I'm happy. There is a legendary beast (which no one has actually seen?) - a Fuji 300 SW which I'm sure would be even heavier and was also marketed in a Copal 3 unless I'm wrong which is not only possible but possibly likely...:)