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

Started 2 weeks ago | Discussions thread
rrc1967 Contributing Member • Posts: 929
Re: RF 100-500mm F4.5-7.1 L IS USM and RF extenders

frisbfreek wrote:

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).

I'm sort of interested in it. I never would have been interested in a faster 100-500. but if this one hits the right numbers in terms of weight I'm all freaking over it like a bad rash.

As far as the teleconverters. they make no sense to me. most of the new RF designs even for supertelephotos have rear elements closer than that.

So I don't know?

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