ZhZ-2x
40,5mm yellow-green lens filter
LZOS, USSR

Excellent condition. There are no scratches, cleavages, fungus.
Lens "Industar-26M" is not included and shown as an example of mount.

This filter has 40.5x0.5 mount and is designed for popular USSR lenses: Jupiter-8 (both silver and black), Jupiter-8m, Jupiter-3, Jupiter-12, Industar-26m, Industar-61L/D, Industar-61, Helios-103, T-22 (on "Lubitel" TLR) and others.

This is a classic yellow-green filter with strong power, also it can be marked as "YG-2x" or "ZhZS-9". Its aim is to make correlation of brightness at the black&white film similar to the real brightness of colour objects in real life.

If you need less powerful yellow-green filter, you can use ZhZS-5 (the same as ZhZ-1,4x or YG-1,4x) which has weaker effect.
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Weight - 9 g
Mount (mm) - 40.5x0.5
External size (mm) - 42x6