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75mm Tominon f 4.5
Does the 75mm Tominon f 4.5 cover 4x5? Anybody know the image circle?
Natural Light Black and White Photography http://mysite.verizon.net/geost/ -George- |
#2
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75mm Tominon f 4.5
"geo" wrote in message ...
Does the 75mm Tominon f 4.5 cover 4x5? Anybody know the image circle? Natural Light Black and White Photography http://mysite.verizon.net/geost/ -George- It is a macro lens for the Polaroid MP-4 system. On the MP-4 it will cover 4x5 at magnifications between 2:1 and 4:1, is usable on cameras with longer bellows up to 7:1. At infinity it won't even cover 2x3. The one I tried on 2x3 at infinity wasn't acceptably sharp (my subjective standards) in the center of the field at f/16 and f/22, was much worse in the corners. There are no inexpensive wide angle lenses for large format. |
#3
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75mm Tominon f 4.5
"Dan Fromm" wrote
There are no inexpensive wide angle lenses for large format. FWIW: The cheapest I have found are 90mm Angulons in busted shutters, often available for $120 or so. If you have a Speed Graphic, with a focal plane shutter it the camera, they are a good deal. Just jam the shutter open or pull the shutter blades out with a pair of vise grips (kidding, not much, though). -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
#4
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75mm Tominon f 4.5
Dan Fromm wrote:
"geo" wrote in message ... Does the 75mm Tominon f 4.5 cover 4x5? Anybody know the image circle? Natural Light Black and White Photography http://mysite.verizon.net/geost/ -George- It is a macro lens for the Polaroid MP-4 system. On the MP-4 it will cover 4x5 at magnifications between 2:1 and 4:1, is usable on cameras with longer bellows up to 7:1. At infinity it won't even cover 2x3. The one I tried on 2x3 at infinity wasn't acceptably sharp (my subjective standards) in the center of the field at f/16 and f/22, Neither is the ysaron 75mm. It covers 6X6 but at infinity isn't good, even stopped way down. The 105mm is about the same thing, but does cover 6X9. Both are -very- good for macro use! -- Stacey |
#5
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75mm Tominon f 4.5
"Dan Fromm" wrote in message
om... There are no inexpensive wide angle lenses for large format. How did you know what I was thinking? Oh well, back to the 90mm Angulon. Natural Light Black and White Photography http://mysite.verizon.net/geost/ -George- |
#6
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75mm Tominon f 4.5
"geo" wrote in message ...
"Dan Fromm" wrote in message om... There are no inexpensive wide angle lenses for large format. How did you know what I was thinking? Oh well, back to the 90mm Angulon. Natural Light Black and White Photography http://mysite.verizon.net/geost/ -George- You're not the only person to suffer from wishful thinking. Cheers, Dan |
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