70-400 II produce worst images than version I?

Started Sep 2, 2013 | Discussions thread
Michael Fritzen Veteran Member • Posts: 5,689
Re: 70-400 II produce worst images than version I?

AFAIK there's not a single claim the GII is performing optically better than the G1. However I have no doubts that keeper rate can rise quite significantly because of the improved AF speed (even more when precision is maintained or even improved).

Please consider the following points as additional possible factors for improved keeper rate: 1) SLT - so no more slapping mirror and such less vibrations; 2) Better camera-AF system with MFA providing best possible precision; 3) Better high ISO performance which allows for working with faster exposure times - much more important for tack sharp photos than commonly considered (for high resolving sensors the suggestions have left the "film-time-value" of 1/FL for quite some time, oscilating now at about 1/(2 x FL) to 1/(3 x FL) for best results.

So at least for handheld shooting at long FL it's counterproductive with modern camera to main ISO low for best low noise results when results suffer degradation from blur due to handshake and/or subject moves.

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Michael Fritzen

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