RF 100-500mm F4.5-7.1 L IS USM and RF extenders

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frisbfreek Regular Member • Posts: 107
RF 100-500mm F4.5-7.1 L IS USM and RF extenders
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What does everyone think of the announcement of the RF 100-500mm F4.5-7.1 L IS USM and the RF extenders?

https://www.canonrumors.com/canon-officially-announces-the-development-of-the-rf-100-500-f-4-5-7-1l-is-usm-1-4x-and-2-0x-extenders/

For myself, the 100-500 seems a bit underwhelming given the f/7.1 at the far end. Of course the transition from f/4.5 could be slower than I think, but the picture of the lens seems fairly thin, so I’m guessing not. As such, my guess is that the existing EF 100-400mm f/4.5-5.4 II will be a bit faster for most of the far end (until 400mm).

The extenders are also interesting... they clearly protrude into the lens, so this suggests that it’s incompatible with the existing RF 70-200 f/2.8! I think this will be quite disappointing to some.

 frisbfreek's gear list:frisbfreek's gear list
Canon EOS R Canon EF 70-200mm F4L IS USM Canon EF 16-35mm F4L IS USM Canon EF 50mm f/1.8 STM Canon RF 35mm F1.8 IS STM Macro +1 more
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