Tag Archives: LOMO

Industar-69 Easy Infinity Focus Fix

This is my fix for the Industar-69 28mm 1:2.8 pancake lens famous infinity focus problem. I read several tutorials and pieced them together and came up with this non-destructive hack that still allows an infinity stop and close focus stop with only one minor setback of the aperture scale mark.

I used a digital camera for this fix which I suppose 90% of the uses for this lens is but, if you have an old 35mm film camera with the M39, Leica screw mount (with a hinged or removable back plate) you can use this lens too, just use a frosted glass plate of some kind, a removable SLR focus screen works good, or I’ve even used scotch tape pulled tight over the film guides to focus test lenses.

simply loosen (not remove) the three set screws on the side of the focus ring and lift off ring.

remove the stud near the bottom of the lens, (red arrow) it is the close-focus stop. leave the stud in the focus ring and the top stud next to the red focus mark (red circle) it is the infinity stop.

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