Originally Posted by
jbenedict
I have the 5x7-> 8x10 back for my Rittreck. There are some of my shorter 8x10 lenses I cannot use on it. I'm guessing this might be the case with 8x10 lenses on 11x14 although I have not made measurements.
At one time, I had considered making an 11x14 extension for my B&J. I realized that I was going to have to support the 11x14 extension so knew I needed both the extension rail and a second rear standard to support the back.
I found a couple of old 11x14 glass plate holders that were in poor shape which I was going to use after rebuilding and a bellows from a graphic arts camera (I had considered replacing the bellows and only using the front standard from the 8x10) and knew my 375/6.8 Caltar would do 11x14 so (other than getting the film- which would have been easier and cheaper in the time frame I started this. About 2005) all I really had to do was find or make at lease the GG frame and to do it. I lost interests about a couple of years and sold the holders to someone who was interested in doing the same thing. Hopefully, that someone has followed through.
Making a "temporary" back out of foam mounting board might give you some insight on what would be necessary.
I wish things like ULF cameras could be rented. I would pay $100/day to have a ULF setup with camera, a couple of holders and a lens. The vendor would have to sell film by the sheet. I would like to try 8x20 but the investment doesn't really justify it. I made a split slide and make two 4x10s on 8x10 and have a 6x12 Horseman back and am looking into an adapter so 35mm can be used in a Pentax 6x7 or Fuji 6x9 to create the same aspect ratio. None of it is 8x20 but I *do* like the aspect ratio and both the 6x12 and the 35mm adapter can give me lots of shots of that at a very, very reasonable price. (Mamiya 6s and 7s can do the same with their panorama adapter.)
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