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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Nikkor 105mm f2.5 AiS
Filter Size:
Lens mount:
Aperture Range:
Close Focus:
Macro Ratio
Year Introduced:
Tested with...
52mm
Nikon Ai-S
f2.5-f22
1 meters
n/a
1981
Eos T2i - APS-C
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The 105 2.5 is one of those lenses that doesn't need to be tested, but here are a few pics anyway. Conclusion: It's a great lens. My copy has some cleaning marks but they do not affect imaging as far as I can see. Contrast is excellent at all apertures. Micro-contrast is also excellent. It is tack sharp from f2.5. I didn't see any fringing in my test shots. Bokeh is smooth and consistent thru f8.

f4 - ISO 200

f2.5 - ISO 400 - 100%crop

f5.6 - ISO 400

f2.5 - ISO 400