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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MIR 37 1B (37mm f2.8)
Filter Size:
Lens mount:
Aperture Range:
Close Focus:
Macro Ratio
Year Introduced:
Tested with...
49mm
m42
f2.8-f16
.7 meters
n/a
n/a
Eos T2i - APS-C

In preliminary testing on the T2i I found the MIR 1B to be sharp, especially from f4, with low distortion and excellent color rendition. Shadow detail is excellent. The lens is prone to flare so use a lens hood at all times. Chromatic aberration is minimal. Focusing is smooth and precise. The aperture is almost circular and stepless, which is nice for shooting video.



Using the MIR 371B on the Canon Eos 6D
The Mir 1B 37mm has a ring on its mount which extends 2mm too far into the 6D camera body when the lens is focused past 15 feet. The ring will make contact with the camera's mirror. There is a work around for this problem which doesn't require modification of the lens. Shoot in live view mode. When shooting in live view mode the mirror is locked into the up position. It is very important that you follow these steps.
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Turn camera on w/out the lens attached.
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Turn off power saver mode and/or the auto off option.
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Put camera in live view mode.
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Attach lens.
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Shoot in live view mode only.
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Do not turn off live view or the camera until you dismount the lens.
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Dismount the lens.
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Turn the camera off.
