Difference between revisions of "Industar-51"

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The '''Industar I-51''' was a [[large format]] 210mm f4.5 lens. A solid piece of optics made by [[KOMZ]] in Kazan, often found on FKD 13x18cm large format [[Reisekamera|travel camera]]s. It had 20 aperture blades to stop down from f4.5 to f32 with round opening at all sizes. Its brand name [[Industar]] was used for all similar 4-element/3-group lens constructions of the whole [[Soviet Union|soviet]] photo-optical industry.
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The '''Industar 51''' is a 210mm f/4.5 lens for [[large format]]. It was made by [[KOMZ]] in Kazan, often found on [[FKD 13x18]]cm large format [[Reisekamera|travel camera]]s. 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 Union|soviet]] photo-optical industry.
  
===Links===
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Optical formula from [[OPAL]] database
*[http://www.apug.org/forums/archive/index.php/t-21914.html discussion] on APUG [http://www.apug.org]
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<pre>
*[http://www.ussrphoto.com/wiki/default.asp?WikiCatID=25&ParentID=2&ContentID=539&Item=Industar-51+Military military version] on USSRPhoto.com [http://www.ussrphoto.com]
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RAD THIC GLASS DIAMETER
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57.68 8.4 LZ_TK16 46
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inf 9.3 AIR 22
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-129.42 4 LZ_LF5 41.5
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52.97 5.5 AIR 39.5
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STOP 6.7 AIR
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-407.4 3 LZ_OF1 40
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54.080 11.2 LZ_TK20 41.5
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-83.56              41.6
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</pre>
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==Links==
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*[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]
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*[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]]
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[[Category:Soviet lenses]]

Revision as of 07:06, 31 July 2022


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

Links