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Rf 100-400mm f5.6-8 + 1.4 extender

Started Jan 30, 2022 | Discussions thread
here_and_there Regular Member • Posts: 194
Re: Rf 100-400mm f5.6-8 + 1.4 extender
1

Try looking at this comparison charts: The-Digital-Picture.com Canon RF 100-400mm F5.6-8 IS USM Lens Image Quality

Judging from the charts above, the RF100-400 with 1.4X gives a similar IQ to the EF II with the 2X converter, which is pretty reasonable, IMO, depending on your pixel-peeping level.

Here are a few real life photos of the RF, some taken with both 1.4X or 2X extenders: Fred Miranda - Canon RF 100-400mm F5.6-8 Image Thread

I own both the RF 100-400 (but not the extender, yet) and the EF 100-400 L II (with both the 1.4X and 2X), plus the R5. Many consider the EF with 2X to be soft, but in real life usage, the IQ is pretty good.

I'm actually considering getting the RF 2X, but I need to find more real life images to evaluate before spending the $600. Since getting it, I find that the RF 100-400 is so compact and light I'm using it much more because of that, so much so that I'm considering selling the EF lens+extenders to pay for new gear.

 here_and_there's gear list:here_and_there's gear list
Canon EOS R5 Canon EOS R7 Canon RF 15-35mm F2.8L IS USM Canon RF 24-70mm F2.8L IS USM Canon RF 50mm F1.8 STM +3 more
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