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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Olympus Zuiko 50mm f1.8
Filter Size:
Lens mount:
Aperture Range:
Close Focus:
Macro Ratio
Year Introduced:
Tested with...
49mm
Olympus OM
f1.8-f16
.45 meters
n/a
1972
Eos 6D - Full Frame

The Zuiko S 50mm f1.8 has excellent sharpness and a semi-smooth bokeh below F5.6.
It is very easy to focus, even without AF confirmation, which makes it a good choice for use on a D-SLR. Contrast is slightly high and colors are slightly cool. Chromatic aberrations are very low.
Bokeh fringing is well controlled.



bokeh fringe - f1.8

bokeh fringe - f2.8

bokeh fringe - f4

bokeh fringe - f5.6