Dimensions | 178 mm |
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Focal Length (mm) | |
Max Aperture (f) | |
Aperture Blades | |
Production |
Perken Son & Rayment Rapid Grossar 178/5.75
Early brass-body enlarger lens made in Hatton Garden, London. Five focal lengths exist, from 5-inch to 10.5 inch. Marked ‘Optimus’.
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