I want to know the circle of confusion for 2 lenses:
Speed Graphic 4x5 Graflex Optar 203mm f/7.5 Speed Graphic 4x4 Graflex Optar 135mm f/4.5
These would allow me to calculate hyperfocal and depth of field charts.
Any help would be appreciated.
Terry Lorch Terr725@aol.com
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