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R5 & RF100-500mm - experience adding teleconverter?

Started 1 month ago | Discussions thread
Abbott Schindler Veteran Member • Posts: 3,099
Re: R5 & RF100-500mm - experience adding teleconverter?

I use the combination with a 2X pretty often. Two drawbacks with the 2x: the 100-500 becomes an f/14 lens, so lighting can be challenging. The other is that the image softens a tad, which is to be expected with 2X. I see a very slight AF slowdown, but it's easy to manage.

I find the combination useful for perched birds; not so much for in-flight. The main reason is that I'm not good enough to keep a relatively close-in flying bird in the FoV (1000mm FL has a pretty tight FoV for birds close enough to not be bothered by atmospheric shimmer).

My biggest gripe about the RF 100-500 is that it's got to be racked out to 600mm or more just to install the TC, which is both inconvenient, makes for a very long piece to carry around, and severely limits FL.

If you need that kind of FL, your choices are pretty narrow. I personally don't get enough use to justify the RF 600 f/4L, and I sure don't want to lug that lens on hikes.

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