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Canon RF 600mm f/11 vs Canon Rf 100-400 with 1.4x extender

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Ikl land
Ikl land Senior Member • Posts: 2,152
Canon RF 600mm f/11 vs Canon Rf 100-400 with 1.4x extender

Hi all,

I've purchased a Canon R7 as my first RF body, and as an upgrade from my Canon 70d. I used a Sigma 150-600 C lens on my 70d, and it was a great combo, but I felt since I had the money, it was worth it to upgrade to the R7. The R7 seems fantastic, and I really don't want to get rid of it. For the first two weeks, I've been using my Sigma on it. The AF pulsing issues with the combo(just like Duade Paton says in his youtube videos), isn't good and I really am frustrated by it. I'm a birder before a photographer, so I do need a decent amount of reach. However, the RF 800 f/11 isn't flexible enough for me, especially the fixed 800mm(1280 on the R7), and the minimum focus distance of 19 feet. The 600 f/11 seems better, but I'm wondering if I should go with the 600mm f/11, or the RF 100-400mm with a 1.4x extender?

Thanks!

 Ikl land's gear list:Ikl land's gear list
Canon EOS 70D Canon EOS R7 Sigma 150-600mm F5-6.3 | C
Canon EOS 70D Canon EOS R7
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