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Canon M6, M50,Sony?

Started 5 months ago | Discussions thread
R2D2 Forum Pro • Posts: 26,528
Re: Canon R10?

thunder storm wrote:

Sittatunga wrote:

Is this theory or practice? In theory diffraction starts to show at f/5.6 for APS-C. In practice Optical Limits found no significant difference in resolution between f/5.6 & f/8 at 400mm for the RF 100-500mm.

There's some headroom above the DLO which can be found doing the math, however, the difference between f/5.6 and f/8.0 is clearly visible with my M6II when using good glass. It's possible the RF 100-500mm isn't that good. It's amongst the best in it's class, but in it's class only.

Good discussion guys. I just have to add my $0.02 here when it comes to the RF 100-500. I shoot it almost exclusively with the RF 1.4x attached (for a wide-open aperture of f/10 @ 700mm). On FF (say the OP's future RP) this lens is as sharp as any prime, only ceding the lovely bokeh you'd get at say f/4 @ 500mm to one of the Great Whites. And the autofocus is seriously fast (and accurate), even with the TC. I have no complaints.

I'd highly highly recommend saving up and ultimately investing in this magnificent lens for anyone looking to add RF to their bag. It hits on all cylinders even way outside of its class.

R2

Crop. 2160 px image. Click on "original size"

Crop. 2160 px

Here's an uncropped full size (compressed jpeg) taken with this combo.

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