Difference between revisions of "Industar-51"
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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. | + | The '''Industar 51''' is a 210mm f/4.5 lens for [[large format]]. It was made by [[KOMZ]] in Kazan, often found on [[FKD view cameras|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. |
Optical formula from [[OPAL]] database | Optical formula from [[OPAL]] database | ||
Latest revision as of 14:48, 9 August 2023
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| 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
