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Robert Brummitt
11-Jul-2007, 09:57
I have a 75mm lens that I had for a long time but now work with a 8x10 Deardroff with a 4x5 reduction back. My question is. Can I use the lens with the camera or should I should I sell it? The lens not the camera.:)

IanG
11-Jul-2007, 10:13
Your title says 90mm, but the text says 75mm :-)

Both would be fine with the reducing back. Some people like to shoot with 90mm lenses on 10x8 film allowing the edges to fall of with the deliberate lack of coverage. The resulting images can be interesting.

Ian

Scott Whitford
11-Jul-2007, 10:20
Like Ian said, the 90 (or 75) almost certainly won't cover 8x10, but it makes for an interesting - almost fisheye - effect.

Check out the work of Emmit Gowin for examples of this. I think he used a Schneider Angulon 90mm f/6.8 on 8x10. That lens barely covers 4x5.

Scott

David A. Goldfarb
11-Jul-2007, 10:29
I'm assuming the question here is really--can you focus to infinity and not have the bed in the picture with a reduction back and a 75mm on an 8x10" Deardorff, and the answer probably has to come from someone who has tried it.

I can go as short as 75mm on my Sinar 8x10" P with a 4x5" reduction back (not a format kit, but an 8x10"/4X5" reduction back probably from the Norma era) and bag bellows, so it might be possible.

I'd probably make a temporary lensboard out of something like mat board to test it out.

Robert Brummitt
11-Jul-2007, 11:38
Yes, I messed up the focal numbers. The lens has been in my bag for sometime and I rarely use it. My regular 4x5 can't manage the lens. That's why I asked about the Deardrof.
Thanks:)

Neal Shields
12-Jul-2007, 14:36
I have used a 90mm f8 super angulon in a recesed lens board on my Deardorff v8.

You get a circular image and there were NO movements but the bed didn't show.

Maris Rusis
12-Jul-2007, 17:28
I've used a 90mm f8 Super Angulon on a Tachihara 8x10 for an photographic exhibition titled Fishbowling. The idea was to get crowds of people in restaurants and bars etc to appear as if in a fishbowl. I shot at f64 to eliminate focussing and enable long exposures with the camera set down on tables and chairs.

Amazingly I did not get purely round images. The little 90mmf8 covered the 8 inch width of the film and just fell short of the 10 inch dimension. The bed of the camera did not show either.

So, I did not get "fishbowls" but the pictures were pretty wild anyway.

Ole Tjugen
12-Jul-2007, 23:14
Oh no!

Now I'll have to try the 90/8 SA on 9.5x12"...

Maris Rusis
12-Jul-2007, 23:22
Ole, don't get too optimistic . My 90mm f8 Super Angulon was pre-focussed on 1 metre so its coverage would have been better than at infinity. On 9.5x12 you may get round images, just. Good luck!

Pete Watkins
13-Jul-2007, 00:03
I can see a silly weekend coming up.
Pete.

Ole Tjugen
13-Jul-2007, 00:05
If that doesn't give me round pictures, I'll try the 65mm. :o

One good thing about old German plate cameras is that they were made to be able to use Hypergons - the 24x30cm (9.5x12") can focus a 35mm lens at infinity! :)

Neal Shields
13-Jul-2007, 07:47
Forget to mention, I also use my 75mm Biogon on 8x10 to make full frame 1:1 macros.

Neal Shields
13-Jul-2007, 07:49
http://truckgenerator.com/subdomain/sueandneal/biogon-on-steroids.jpg

Ron Marshall
13-Jul-2007, 08:59
http://truckgenerator.com/subdomain/sueandneal/biogon-on-steroids.jpg

Were you photographing those flowers, or cooking them?

IanG
13-Jul-2007, 11:47
So come on Neal, we want to see the photo you shot, not the camera :-)

Ole Tjugen
13-Jul-2007, 12:07
Were you photographing those flowers, or cooking them?
It looks more like he was pollinating them! :D

Robert Hall
13-Jul-2007, 12:49
I use my Schneider SA on my 4x10 (reducing back on the Canham) and that works fine, of course. I also use the 90 as a macro lens on the 8x10 as a little bellow extension goes a long way.

Jim Galli
13-Jul-2007, 13:10
With all due respect to the original poster, why don't you try it. I know you could focus a 75mm with the regular back and I'm pretty sure you could do it with the 45 reducing back, it just depends on how far that reducing back sets the GG away from the back of the lens. With the back rolled all the way to the front and the standard all the way leaned in, it should work fine. Try it and tell us.

Neal Shields
13-Jul-2007, 14:21
http://truckgenerator.com/subdomain/sueandneal/magnoliacontactweb.jpg

Jiri Vasina
15-Jul-2007, 13:13
http://truckgenerator.com/subdomain/sueandneal/magnoliacontactweb.jpg

Well, that is something nice...

Robert Brummitt
15-Jul-2007, 22:15
With all due respect to the original poster, why don't you try it. I know you could focus a 75mm with the regular back and I'm pretty sure you could do it with the 45 reducing back, it just depends on how far that reducing back sets the GG away from the back of the lens. With the back rolled all the way to the front and the standard all the way leaned in, it should work fine. Try it and tell us.
Two reasons.
First, if the lens/camera set doesn't work then I should just sell the lens. Second, If the lens needs a special lens board? I would need to know where or if such a board exists.
I figure why reinvent the wheel or go through steps to make it happen when I'm sure that someone from the Forum has been there and done that.
It sounds like the lens/camera combo can be done and I will just have to make a board for the lens and give it a whirl.
Thanks for the information.
:) :) :)

Jim Galli
15-Jul-2007, 22:28
Robert, I have an original 'dorff board with size 00 hole. I can enlarge to size 0 and sell if any interest at about $40 plus mailing.

Jim Noel
17-Jul-2007, 07:24
The 90 mm can be used on an 810 Deardorff without a recessed board if the bellows is original. If not it may not be as supple. You would still have rise and fall regardless of the bellows.