Brass Petzval Lens brand_Logan not back pocket- with a

not back pocket- with a surprising 35x optical zoom

with approximately 21k actuations

from 1:1 and beyond

The meter's even relatively accurate

with some plastic smoothing on the grip from normal use and handling

Brass Petzval Lens brand_Logan not back pocket- with aThis is an unmarked Petzval design brass lens for large format cameras. Likely from a projector there is no diaphragm or slot for Waterhouse stops it features rack and pinion focusing and pretty decently clean glass, free of fungus, with minor marks from cleaning over the last, like 100 years or more. Focal length and aperture are unknown. Includes a threaded flange for mounting to a lens board (not included). Will cover 4x5.