It is mounted on a board for the camera, that’s why I said I couldn’t focus. I meant the 135mm was intended for a 4x5 camera, the board is for the 2x3 Century. At this point I suspect the lens is not assembled properly or has some other defect that caused the problem. Glad to hear focus is possible up to about 200mm- sorry if I muddied the waters- and now I know my 135mm is defective.
Should be a basic Tessar design.At this point I suspect the lens is not assembled properly or has some other defect that caused the problem
Set the yoke to forward from fully retracted .040 ± .010 inch; pull the front standard out until an infinity target at least 5000 feet away is in sharp focus, install the infinity stops against the front standard.I'd like to hear more about how you calibrated the rangefinder. I re-read the instructions, they still sounds a bit convoluted
Charles, AFAIK Graflex sold two 135 mm lenses as Optars. One made by Wollensak, the other by Rodenstock. Both are tessar types.Should be a basic Tessar design.
View attachment 254553
Light travels the direction of the arrow, | is the aperture/shutter blades.
Set the yoke to forward from fully retracted .040 ± .010 inch; pull the front standard out until an infinity target at least 5000 feet away is in sharp focus, install the infinity stops against the front standard.
Now with the lens sharply focused on an infinity target at least 5000 feet away turn the eccentric on the yoke until the rangefinder shows considence at infinity. (fig A page 5)
Now with the camera mounted on a tripod and level focus the lens on a target 25 feet from the film plane. Loosen screw 2 and adjust the rear scake until the focus target is in considence then tighten screw 2. (fig F page 7)
Move the target to 15 feet, focus the lens on the target and check that the rangefinder is in considence. Adjust as needed using the 25 foot scale.
Recheck infinity.
Recheck 25 foot setting.
Set the focus target to 8 feet, focus the lens on the target, loosen screws 1 and slide scale 3 until the focus target is in considence. (fig F page 7)
Set the target to 4 feet and repeat as in the 8 foot adjustment. Tighten the screws.
Recheck infinity and if no adjustment is needed check that the rangefinder shows considence with the lens focused on any target at any distance.
Do all focus test with the lens wide open.
Yes you may have to remove and install the rangefinder cover several times and take the camera out doors to find a suitable infinity target.
Tedious, yes, convuloted NO.
9, 12, 13 fig F page 7. This adjustment changed over the years with the late version having a screw on the top rear of the cover that operated the lever (13).It seems my laterals are off in the finder too. I'm sure there's a screw for that somewhere.
Read the description, 2cm x 3cm. Thats .78 inch x 1.18 inch. Yes you can expose it in a camera but why?
That film is 2 x 3 cms!
Smaller than 35mm.
And dental x-ray film would perform in quite different ways than "normal" film.
Although it occurs to me that I do have a friend who made a career out of, to a great extent, taking photographs of dental work (and dental students, and dentists).
Are you thinking of a new specialization?
Why not just buy the right sized sheet film from Freestyle?
Ya, variety is limited in that size. Every couple of years I get interested in a baby Graphic but with plans for roll film backs. Might be a bit lighter than my 4x5s. Hope you find a camera soon.
Your on the path to success! Errors happen. More practice = less errors. Next time shoot a couple at 400 and a couple at 200. Pushing us over-rated (IMO).
But Instax could be fun... I’m not there because I’m still mourning the loss of Polaroid.
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