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 AF 28-85 f3.5-4.5
I've wanted an AF Nikkor 28-85 for many years. My copy is the first version with the narrow focus ring. They say it's as good as primes at all focal lengths. Almost! At 28mm it is soft in the corners. At 35mm thru 85mm it is comparable to primes.
f5.6 - ISO 400 - 50mm
f5.6 - ISO 400 - 100% Crop - 35mm
f4 - ISO 400 - 50% Crop
bokeh fringe - f3.5 - 80mm
noticeable color shift
bokeh fringe - f5.6 - 80mm
reduced but still there
f2.5 - ISO 400 - 100% Crop - 50mm