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Legacy Lenses Discuss the use of older lenses, using adapters, from the Olympus OM system, Leica M and R-series, and the millions of others too.

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Old 22nd March 2018
Harold Gough Harold Gough is offline
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Printing-Nikkor 150mm Reversed

For macro, one of my setups uses two Olympus OM telescopic tubes. For this exercise I measured (hand-held so approximate) the FOV width with the tubes both fully extended and with both fully retracted. I did this for the lens mounted normally and with it reversed. The body was a full frame Sony Alpha A7R.

Lens mounted normally: maximum extension FOV 24m, minimum extension FOV 38mm

Lens mounted reversed: maximum extension FOV 25mm, minimum extension FOV 45mm.

I could see no difference between the lens orientation, in the slight vignetting in the corners, being more for the higher magnification (longer extension) in each case.

The normal values were with 7mm of additional extension which I was unable to detach for the reversed check.

The lens seems +/- symmetrical and there is no significant advantage in reversing it.

The body is willing but the mind is weak.
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