Help to identify these filters

absalom1951 · Apr 2, 2018

Need help identifying these filters. Picked them up sometime ago . I believe the top one is a ND filter .The one marked F-1734 is clear . The 2X and 1.4 x are yellow. The 1.4 is very light yellow , while the 2x is a light yellow but slightly darker than the 1.4 . Any help would be appreciated. Thanks

gorbas · Apr 2, 2018

Made by KMZ, USSR and Russian company famous for their Zenit and Zorki camera models. Cyrillic lettering. Yes, you figured it out right!

absalom1951 · Apr 3, 2018

Thank you for the reply. They are very robust filters-built for the long haul.

AgX · Apr 3, 2018

F-1734 is not a filter.

absalom1951 · Apr 3, 2018

Could you please tell me the usage of F-1734 ? thanks

AgX · Apr 3, 2018

It is a convex lens of 1734mm focal length.

locutus · Apr 3, 2018

Isn't that effectively a closeup diopter?

AgX · Apr 3, 2018

For 35mm that term sounds a bit awkward, but technically it is. Quite some lenses cannot be focused down to 1.7m.

Help to identify these filters

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