Quantaray 500mm f8 Mirror
Most Quantaray lenses were made by Sigma and some were made by Tamron and Tokina. This lens performs like a Sigma Mirror lens. It is reasonably sharp if you can hold it steady. It has the typical ringed bokeh we see from mirror lenses. Contrast is surprisingly high. While it is not a Zeiss or even a Tamron in quality, it is still far better than any of the off-brands flooding the market.




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Industar Filter Size Chart
35mm
Industar-69 28 mm f/ 2.8 (Chaika)
Industar 30mm f5.6 (18x24mm)
Industar-61 L/Z (MC) 50mm f2.8 (m42)
Industar-26M 50mm f2.8 (m39
Industar-50-2 50mm f3.5 (m39, m42)
Industar-22 50mm f3.5 (m39)(Folding)
Industar 50 U-1 50mm f3.5 (m39)
Industar-96U 50mm f3.5 (m39)
FED Industar10 50mm f3.5 (m39)
I-61 52mm f2.8 (m39)
Industar-61 L/D 55mm f2.8
Industar 90U 75mm f4
Industar-24M 105mm f3.5
22.5mm
none
49mm
40mm
35.5mm
36mm SO
35.5mm
none
--
40.5mm
40mm
--
40mm
Medium & Large Format
Industar-29 80mm f2.8 (Kiev 88)
Industar-51 210mm f4.5
Industar-4 210mm f4.5
Industar-37 300mm f4.5
I-11M 300mm f9
58mm
60mm
--
77mm
66mm