Lens · prime
Industar 61 L/Z 50mm f/2.8
LZOS
Industar-61 L/Z 50mm f/2.8: 4 elements in 3 groups, 5 aperture blades, 0.3m minimum focus, 49mm filter thread, 225g. Multi-coated Tessar-type lens made at LZOS for M42 SLRs.
- Focal length
- 50mm
- Max aperture
- f/2.8
- Mount
- M42 Screw
- Format
- 35mm
- Elements / groups
- 4 / 3
Known for
- General photography
- Street photography
- Landscape
Considerations
- f/2.8 maximum aperture
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Bokeh: Star-shaped at smaller apertures
Rendering: Sharp with clinical precision
Colour: Neutral, accurate
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Versions
Standard
1965-1990
Regular aperture blades
Normal bokeh
MC Star
1980-2000
Star-shaped aperture blades
Creates distinctive star bokeh
Industar-61 was the first Soviet consumer lens to use super-heavy crown glass (STK-6). The L/Z is the multi-coated version made at LZOS for SLR cameras (M42 thread), marked 2.8/50. The 'L' is usually read as lanthanum glass, though it may have meant Lytkarino.
Common issues
- Focus ring wear
- Aperture blade oil
Buying guide
Check focus ring smoothness and aperture blade operation, and the condition of the coating.
Specifications
| Mount | M42 Screw |
| Focal Length | 50mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/16 |
| Aperture Blades | 5 |
| Min Focus | 0.3m |
| Filter Size | 49mm |
| Weight | 225g |
Optical design
| Formula | Tessar |
| Elements | 4 |
| Groups | 3 |
| Coating | Multi-Coated |
Pricing
- Typical used price
- £20 - £50
- Mint
- ~£70
Indicative, no dated source.