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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Petri CC Auto 55mm f1.8
Filter Size:
Lens mount:
Aperture Range:
Close Focus:
Macro Ratio
Year Introduced:
Tested with...
52mm
m42
f1.8-f16
.6 meters
n/a
n/a
Eos T2i

This lens is not the prettiest or best built lens but it performs well. It is sharp at f1.8, but that's not what makes it special.
Images from this lens have a nice 3D feel to them. Bokeh is very natural at wide apertures. Micro contrast is excellent. It reminds me of a Konica Hexar. I am confident this will be a great portrait lens. Color rendition is accurate. Saturation is neutral and contrast is excellent at all apertures.
At $25-$45 this lens is a tremendous value.
I tested the m42 version of this lens and it handled very well on my T2i. Finding focus was not an issue and the aperture ring doesn't bind on the adapter.

f2 - ISO 400

f1.8 - ISO 800 - 100% crop

f5.6 - ISO 400

f1.8 - ISO 400 - 50% crop

f1.8 - ISO 800 - 100% crop