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FORUMS Gear Reviews Lens Reviews 
Thread started 10 Mar 2018 (Saturday) 18:17
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TOGGLE RATINGS BETWEEN ALL AND Varago (showing now: Varago)
Overall Rating9.5
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List all reviews of Tamron 100-400mm F4.5-6.3 Di VC USD

Tamron 100-400mm F4.5-6.3 Di VC USD, reviewed by Varago

175 posts
Likes: 7
Joined Jun 2009
Location: Vancouver Wa.
Mar 10, 2018 18:17 |  #1

I have not seen any review here for the Tamron 100-400 4.5-6.3 so here it comes :)

I have used the Sigma 100-400 F 5-6.3 for about a year and was never really happy with it. The focus and IS were not great but the IQ was great. Also it does not work with extenders, it is listed on the Sigma site for use in manual focus only with a 1.4 or 2.0 not to mention no tripod mount :( The weather resistance seal is at only at the mount which from what Sigma says is 75% percent of their problems with water/dust.

I was intrigued by the early reviews of the Tamron 100-400 so took a chance and ordered one from B&H. In the side by side comparison the Tamron was a hair sharper at 40 ft at all FL's, but I would think well within production tolerance. You had to be at 100% to see any difference. I did find the focus faster and more consistent with the Tamron and the VC better than the Sigma OS. At 67 I could get 3 stops with the Tamron and 2 with the Sigma.

The two things that were a major advantage to the Tamron for ME were weather resistance and the Tamron worked great on my M5 as well as my 7D MII. Sigma shows the 100-400 C sealed at the mount but Tamron shows their 100-400 has 10 seals from the mount to the front element.

Dustin Abbott has a good final review you may want to watch

So now the Sigma is on consignment.

R, 7DII, M5
Canon 24-105 L II, 50 1.8 stm, 11-22 M, 22 M, 15-45 M, 18-150 M, 270EX II, 320EX, 430EX II, BG-E16
Sigma 18-35 A, 50-150 2.8 OS, 150-600 C, 1.4x tc1401, 2X EX
Tamron 35 1.8 SP, 100-400

37 posts
Gallery: 5 photos
Likes: 37
Joined Aug 2018
Aug 16, 2018 18:53 |  #2

Been thinking about buying one of these for birding in good light. Thanks for the review.

Sony A7III | Sony A9 | Sony 28mm f/2 | Sony 50mm f/1.8 | Sony 85mm f/1.8 | Sony 70-200mm f/4 | Sony GM100-400
NC Sports News Staff Photographer (external link) | @rvingphotographer (external link)
See More, Shoot Less

1,424 posts
Gallery: 5 photos
Likes: 11
Joined Jan 2004
Aug 20, 2018 13:45 |  #3

I just bought one and haven't used it much yet, but so far it seems really quite sharp and the focus is quick.

+1 on the Dustin Abbott review.

30 posts
Gallery: 6 photos
Likes: 93
Joined May 2018
Location: US
Oct 06, 2018 22:19 |  #4

Thanks for the review.

I bought one a month ago, and really like it. In good light it’s fantastic; quick AF, and sharp. In low light it’s a little trickier getting high rnough shutter speed, and acceptable ISO.

Overall, i’m Very happy with the lens.

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Tamron 100-400mm F4.5-6.3 Di VC USD, reviewed by Varago
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