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RF extender experiences with RF 100-500 1.4x vs 2.0? Locked

Started Oct 16, 2020 | Discussions thread
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John Sheehy Forum Pro • Posts: 26,688
Re: RF extender experiences with RF 100-500 1.4x vs 2.0?

frostybe3r wrote:

This is the noise at 12800 ISO on an R5... And going off by that, I wouldn't want to touch an RF 100-500 at f10 for anything other than bright days but that's just me..

You are once again lost in the wrong conversation.

This is the comparison you need to make: the same photo of the same STATIC thing in the same light, from the same distance and perspective, with the same shutter speed and the only difference is teleconverter, ISO, and f-number for the same physical aperture.  Then, resample the bare lens version up to subject size of the TC version on-screen, and then compare noise vs detail.

Your images here look like they might be using nearest neighbor downsampling, which is broken and ruins images with more MPs more than low MP ones, and makes noise more dramatic, by dropping pixels and increasing the contrast between noise excursions in the resulting and remaining neighboring pixels.

4000 for comparison

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