Sigma 150-600mm f/5-6.3 vs Tamron 100-400mm f/4.5-6.3

Started Aug 28, 2021 | Discussions thread
tenordrum Regular Member • Posts: 462
Re: Sigma 150-600mm f/5-6.3 vs Tamron 100-400mm f/4.5-6.3

Leonardo Santisteban wrote:

Oh wow all this is very helpful! I also watched some more reviews on the internet, and I’m glad I did. It seems like the Sigma 100-400mm is better than the Tamron 100-400mm. So now my current decision is between the Sigma 100-400mm and the sigma 150-600mm.

I guess i won’t be able to compare the 150-600 at 600mm vs the 100-400 cropped on TDP, but there are comparisons online. Some people say that the Canon 100-400 mark 2 is sharper at 400mm cropped than the 150-600 at 600mm. I also watched a review from Dustin Abott where, at 400mm, the Sigma 100-400 was as sharp as the canon 100-400 mark 2. Then this would in fact mean that the sigma 100-400 is sharper at 400mm cropped than the 150-600 at 600mm, or am i wrong?

I always shoot handheld anyways, and the 100-400 is much lighter/smaller, so that would be a very big advantage.

Based on what I saw, it’s not, but even if the 150-600mm is sharper than the 100-400 (at 600mm vs 400mm cropped), I think I would still pick the 100-400 because of the differences when handholding, and also because it’s a bit cheaper.

It seems like the 100-400mm would be a better option for me, or am I forgetting to consider any other aspect of them?

I own the Sigma 100-400C, having used it on a 7D, 80D, then 6D2, R, and now the R6. I suggest you consider getting the Sigma USB dock, if you move forward buying that lens.

Having the dock allows you to easily upgrade the firmware on the Sigma, since Sigma does upgrade the firmware (normally for new bodies). It also allows you to customize the settings on the lens.

Sigma's outlet store has the 100-400C for $599. The refurbs don't have the same warranty as the new lens, but perhaps saving a few  bucks may help you.

I tried using the Sigma TC-1401 1.4x teleconverter on it when I had the 80D, but returned it since I didn't quite enjoy the output. I may try purchasing it again or a Canon 1.4x extender, as the R6 can handle the autofocus with the higher f stops.

 tenordrum's gear list:tenordrum's gear list
Canon EOS R6 Canon RF 35mm F1.8 IS STM Macro Canon RF 24-105mm F4L IS USM Canon RF 600mm F11 IS STM
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