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Re: [OM] Photoessay: OM Zuiko 50mm ƒ/8 Reflex

Subject: Re: [OM] Photoessay: OM Zuiko 50mm ƒ/8 Reflex
From: Mike Gordon via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Mon, 26 Jul 2021 21:42:40 +0000 (UTC)
Cc: usher99@xxxxxxx
FOM writes:
<<Also not as good as the PLeica 100-400 @ 400 - 800 mm eq. on µ4/3, by quite a 

<<Also not significantly better than the 1" sensor Sony Rx10IV, which weighs 
about the same as an E-M5x and a bit less than an E-M1 II, with 500/8 mounted. 
And that's an amazingly versatile <<camera.

<<These opinions are based on real tests @ about 1:40. Sony A7 on sturdy tripod 
<<for the FF lenses, remote release.

Caveats of the analysis:

Speedbooster ultra used--probably the .71 not the 0.64 version.  Both INCREASE 
MTF and eliminate the effect of sensor stack.  Stack issue minimal at these 
FL's though but MTF improvement
could be interesting and is Speedbooster use still results in a crop also 
affecting the results vs FF.  I still suspect the PL will be much better but 
explains how useful the lens can still be on MFT. 



The 0.64X version is apparently risky to use on E-M1 mkx cams--drat.  It has 
been done however. 

Don't forget the Speedbooster, Mike 
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