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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Minolta Macro Rokkor QF 50mm f3.5
It's a macro lens. Okay, you know that much. I hope I can tell you a few things you don't jknow. Handling on the M3 is comfortable.
The lens is sharp wide open, which I didn't expect. It is tack sharp at f5.6. Color rendition is excellent. Bokeh is not as smooth as the 50mm Rokkor PF but it is smooth in close focus use.
In high contrast strong lit scenes, bokeh fringing is noticeable upon close inspection. There is a red to cyan shift.
I'm being picky. It's a very good lens.
f3.5 - ISO 200
f3.5 - ISO 800 - mid range
f3.5 - ISO 400 - 100% Crop
f5.6 - ISO 800 - mid range
f3.5 - ISO 400 - 100% Crop
f5.6 - ISO 800 - close focus
f3.5 - ISO 800
tight crop - bokeh fringe