Tamron vs Sigma 150-600mm

I own the Tamron and used on my 5D III, I am getting good results. It does well on my 7D II also.
I am hearing that Sigma's 150-600mm might be better than the Tamron.

Does anyone have experience with both these lenses? I have a friend who is looking at these lenses and would like to know which is the best of the two.

The Sigma is much more expensive. It is worth the extra money/

are you accidentally look at the Sigma 150-600 Sport version? that is $1999
The 150-600 contemporary version is running now anywhere between $900-1100 so its basically the same price as the Tamron. I have never used the Tammy but the reason i chose the sigma is because it offered more features. The dock to adjust the focus and change the OS and focus speed settings. Plus it has 2 custom function switch settings you can program a setting for each one to set up shooting situations.

I tried out the Tamron lens back in 2014 by renting one for an airshow. The lens was very nice, and at that time (August) there was no competition from Sigma. Because of the subject that I specialise in very often requires very slow shutter speeds, I usually limit myself to 1/160s having optical image stabilisation is quite important with the longer lens for me. I shot the show with the Tamron VC engaged, as I had heard that the VC in Tamron lenses could auto switch while panning. As I found out that was not the case with the 150-600 at that time. The VC when used while panning caused significant feedback problems that made any shot taken at under 1/1000 to suffer from extreme amounts of blur. It was interesting that you couldn't really see this through the viewfinder. After the show I spoke to a rep from the UK Tamron importers who confirmed that the VC could not work during panning because the electromechanical systems couldn't handle the load while moving. I know that Tamron have released a firmware fix for this, but I'm not sure if it simply disables the VC when it detects panning, so that you don't have to switch it off, or if it really enables the VC system to actually work effectively in that situation.

Since I had already had a problem with the Tamron and the VC I went out and got a Sigma 150-600 Contemporary. This lens is of a very similar construction to the Tamron, and is about the same price. The lens is IMO superior in image quality to the Tamron for static subjects, but since it has a dedicated Mode 2 for panning in the OS system it is much better in that regard, which since most of the time I am using it I am panning with slow shutter speeds. There are a lot more features available on the Sigma, especially if you get or already have a dock. The 150-600 C is the exception to the "Contemporary" line from Sigma, in that the dock options are exactly the same as for the "Sport" series lenses, so you get the OS and focus speed customisation, as well as the ability to set in lens MFA at four focal lengths and four focus distances, for a total of 16 MFA points. The added functionality that you get from the Sigma C is definitely worth the small price difference. If you have other lenses from the new Sigma Global Vision Range then you can use the same dock with all of those lenses too.

The much more expensive 150-600 Sport brings a much better build quality, at the least equal to Canon big white L quality. It's fully weather sealed, and is built on a solid aluminium lens barrel, it's one big chunk of metal, they have a bare body on display in WEX in Norwich, it's quite impressive. The optical arrangement for the Sport is different too, and the image quality is said to be even better. I haven't actually tried out the Sport, as it was never in my price range. Of the five reasonably priced big zooms on the market today, if you include the original 100-400L, I have used three of them, the other two I can only judge by the comments of others. When it comes to image quality I would say that from best to worse they run as follows:

1. Canon 100-400 V2
   
   
2. Sigma 150-600 S
   
   
3. Sigma 150-600 C
   
   
4. Canon 100-400 V1
   
   
5. Tamron 150-600.
   

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Thanks for the replies guys. Wow the Sigma sport seems nice from your statements. I know the canon 100-400 II is great, but for a FF camera the 600mm is better for reach. I have the 400mm f5.6 for my 7D II, but use the Tammy 150-600 on the 5D III. Actually the Tammy has done a good job for me in most cases. Examples below:

This was taken at a very great distance over a river (probably 150 yards)

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I think if you already have the Tamron, and can limit yourself to 1/FL or better shutter speeds for moving subjects, so you don't need to worry about how effective the VC is going to be, I wouldn't consider upgrading to the Sigma C. When It comes to buying one of these lenses new though, you would really need to be strapped for cash to consider the Tamron over the Sigma when the prices are so close. I just looked at my usual dealers price for the two lenses, while writing this, and they are both currently £739. At the same price I don't know how you would possibly buy the Tamron. They have both come down a lot in the last six months too, as my Sigma C was £899 last October and the Tamron was £100 cheaper. Saying that the RRP for the lenses are significantly different. The Tamron's is now £880, while the Sigma is still listed with the launch RRP of £1199.

Alan

Considering the prices are close, the sigma offers much more af accuracy and speed customization via the dock, and the latest firmware update improves AF speed by around 30-40%. You have to butbuy a $50 dock, but that makes for a better overall product choice in my opinion. As sigma updates the firmware too, you can update the lens. None of this is available with the tamron.

BigAl007, no I am not upgrading. The OP was to inquire for a friend who is looking to buy, and I am going to recommend the Sigma to her.

$990 at B&H with bonus Sigma dock and uv filter

http://www.bhphotovide​o.com …_600mm_f_5_6_3_​dg_os.html