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500mm vs 600mm?

Started Nov 13, 2017 | Questions thread
Tazz93
Tazz93 Veteran Member • Posts: 3,484
Re: 500mm vs 600mm?

Adam2 wrote:

BirdShooter7 wrote:

I'm curious, have you tried the Sigma 500mm f/4? I have seen some tests that say it is actually sharper then the current Nikon which is supposed to be sharper than the Canon mk2.

No I haven’t tried it personally but have looked at a lot of images taken with it. The canon IQ seemed better in terms of contrast and fringing. That runs a bit counter to what dxo observed. The trick is to see how the two will perform side by side especially with a tc. And I haven’t seen such comparisons. According to dxo the Sigma is slightly sharper on cameras such as the 5dmkiv.

https://www.dxomark.com/sigma-500mm-f-4-dg-os-usm-s-canon-lens-review-super-sharp-shooter/

I was under a similar understanding. I thought the Canon Mark II lens looked better in comparison images, but also thought the Sigma may have been slightly better than the the Nikon in a few images. The two opinions didn't seems to match measured tests between the Canon and Nikon, go figure. But I think the biggest differentiator is the wide open performance and extender performance. I thought the Canon was a little better wide open, just a hair though.  And from what I've seen. Sigma's extenders are not quite Canon quality, but may be a close match for Nikon's.

All that said, I have a couple friends that shoot the Nikon mount Sigma and simply love it.

 Tazz93's gear list:Tazz93's gear list
Canon EOS-1D Mark II N Canon EOS 5DS Canon EOS R5 Canon Extender EF 2x II Canon EF 70-200mm F2.8L IS II USM +11 more
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