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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Konica Hexanon AR 52mm f1.8
Eos M3- APS-C
Konica 52mm lenses are very similar to their 50's. Lens characteristics are almost exactly the same. This 52mm has a slightly longer minimum focus distance than its 50mm brother. Lens feel is identical to the 50mm. Lens IQ is identical to the 50mm. Do you need an extra 2mm? Don't sweat it. They are essentailly identical.
These Hexanon's are very well built.
On the M3 this lens handled well except for the aperture ring rubbing against the adapter. This is always a possibility. Otherwise it was comfortable to focus and hold reasonably steady.
As I said, the 52mm performs exactly like the 50mm. F1.8 gives images a dream-like feel. Bokeh is a bit busy at mid apertures so be careful not to oversharpen in post processing. It would cause the bokeh to become jagged.
When I think of Konica lenses I think of street photography. The IQ is lifelike and wonderful. At f1.8 it is sharp enough to use. At f2.8 and up it tightens up. Corner to corner performance is excellent. Contrast is excellent throughout the range. F1.8 is a tad soft. Color rendition is fantastic. Shadow detail is fantastic. In backlit situations color accuracy remains high. Clipping only occurs with extreme overexposure.
Bokeh fringing can be seen at f1.8 but is gone by f4.
ISO 400 - f1.8 - Great IQ
ISO 800 - f2.8
ISO 400 - f1.8 - Dreamy
ISO 800 - f2.8- Nice color/No shifts
ISO 800 - f4
ISO 400 - f1.8 - 100% crop
ISO 800 - f1.8
Simple B/W (no adjustment)
ISO 400 - f1.8 and f5.6
bokeh fringe - f1.8 - click to view
bokeh fringe reduced - f2.8 - click to view
bokeh fringe gone - f4 - click to view