Difference between revisions of "Industar-51"
m |
|||
| Line 10: | Line 10: | ||
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 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 | + | Optical formula from [[OPAL]] database |
<pre> | <pre> | ||
RAD THIC GLASS DIAMETER | RAD THIC GLASS DIAMETER | ||
Revision as of 02:51, 1 September 2016
|
| 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
Links
- discussion on APUG [1]
- military version on USSRPhoto.com [2]
