My take on the RF 800mm f/11 DO IS STM for birds

Started 3 months ago | Discussions thread
OP BirdShooter7 Veteran Member • Posts: 7,010
Re: My take on the RF 800mm f/11 DO IS STM for birds

Marximus wrote:

I have the 100-400 II/1.4x, and I have difficulty justifying this lens, because in crop mode I can get 896mm at f/8. I've thought about getting it and using it just on my R6 (like I do the 24-240), because I wasn't thrilled with the sharpness when mounted on the R5, but if I want 800mm at f/11, I can just add the 2x to the 100-400 (although in fairness, I rented the 800 and found it to be a bit sharper than the 100-400/2x combo). The relatively short MFD keeps me from pulling the trigger, although the 800 has a magical ability to jump in and out of my Amazon shopping cart:P.

Definitely the 100-400 is a fantastic lens and in practical terms is a lot more versatile than a fixed 800mm f/11 so I totally get where you’re coming from.

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