Difference between revisions of "Industar-51"
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==Links== | ==Links== | ||
− | *[ | + | *[https://www.photrio.com/forum/threads/industar-51-210-4-5-does-anyone-actually-use-and-like.13697/ discussion] on [https://www.photrio.com/forum/home/ Photrio.com] |
− | *[http://www.ussrphoto.com/wiki/default.asp?WikiCatID=25&ParentID=2&ContentID=539&Item=Industar-51+Military military version] on | + | *[http://www.ussrphoto.com/wiki/default.asp?WikiCatID=25&ParentID=2&ContentID=539&Item=Industar-51+Military military version] on [http://www.ussrphoto.com USSRPhoto.com] |
[[Category:Russian lenses]] | [[Category:Russian lenses]] | ||
[[Category:Large format]] | [[Category:Large format]] | ||
+ | [[Category:Soviet lenses]] |
Revision as of 07:06, 31 July 2022
image by Uwe Kulick (Image rights) |
The Industar 51 is a 210mm f/4.5 lens for large format. It was made by KOMZ in Kazan, often found on FKD 13x18cm large format travel cameras. It has 20 aperture blades to stop down from f/4.5 to f/32 with round opening at all sizes. The name Industar was used for all similar 4-element/3-group lens constructions of the whole soviet photo-optical industry.
Optical formula from OPAL database
RAD THIC GLASS DIAMETER 57.68 8.4 LZ_TK16 46 inf 9.3 AIR 22 -129.42 4 LZ_LF5 41.5 52.97 5.5 AIR 39.5 STOP 6.7 AIR -407.4 3 LZ_OF1 40 54.080 11.2 LZ_TK20 41.5 -83.56 41.6