p.1 #4 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
So far, I've only viewed Dustin's review which is actually a Tamron G2 vs Sigma comparison (what is interesting is that he had both Tamron G2 and Sigma Sports zooms at the same time).
High-level summary :
- if your lens usage is mainly travel and you value weight & compactness, go with the Tamron.
- if you want Sony GM quality (build, features...) minus the TCs compatibility and 15 frames/s cap, go with the Sigma.
- differences in image quality and bokeh between these 2 lenses are really minimal (brighter image and slight better bokeh with the Tamron vs less vignetting, better image stabilization, better contrast and image quality at close distance with the Sigma).
- the actual FoV difference between these 2 lenses is minimal (short distance and less at longer distances), maybe due to Sigma lens exhibiting some breathing (Gerald does test this so very likely we'll have this info in his review).
Dustin stated in a reply to a YT comment that the tripod collar is not removable.
I don't like this but, with my usages (hiking and macro), I do prefer the Sony G2 zoom anyway although I am still thinking of the Tamron G2 as a potential alternate choice.
p.1 #5 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
nicephore wrote:
Dustin stated in a reply to a YT comment that the tripod colar is not removable.
I think I read that the foot is removable, but not the entire collar. (looking for reference now...)
PS
Can't find any reference, so maybe I imagined it. However, looking at the video on the Sigma site, you can see that the foot has four screws and appears to have its own part number. This perhaps means it could be taken off.
p.1 #9 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
Christopher Frost in his review at 2mins and 30 sec does say about the collar "Unfortunately, it's quite hard to remove", suggesting that there may be a possibility (probably the foot, not the whole collar)
Nov 16, 2023 at 09:48 AM
berimbolo Offline • • • [X]
p.1 #10 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
j4nu wrote:
Not gonna happen...
I know. I am going to eventually upgrade from the Tamron G1 to the GM just for the added benefit of using TCs. Saves a lot of weight and space when traveling.
p.1 #11 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
berimbolo wrote:
I know. I am going to eventually upgrade from the Tamron G1 to the GM just for the added benefit of using TCs. Saves a lot of weight and space when traveling.
I don't have a 70-200/2.8, but I think I'd try to find a good deal on the GM2 if I wanted to get one. It's 300g lighter than the Sigma and as a bonus you get extra fps and TC support . Bang for buck, Tamron G1 is tough to beat IMHO.
p.1 #12 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
nicephore wrote:
Dustin stated in a reply to a YT comment that the tripod collar is not removable.
Dustin ABBOTT : review of the Sigma 70-200mm F2.8 DG DN Sport
"... the Sigma has a full non-removable tripod collar. It is an integrated design. The Sony GM II also has an integrated tripod collar, but in that case the foot can be easily removed (without tools). You can only remove the Sigma foot with tools, so prepare to have it mounted all the time..."
p.1 #13 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
I've watched Gerald's review (which is a comparison between the Sigma DN vs the Sony GMII).
High-level summary :
- minuses : Gerald doesn't like some Sigma design decisions (zoom ring position, non-linearity of the focus ring, tripod foot design), slight noise, weight differences (30% more weight).
- pluses : Gerald found the Sigma has very little focus breathing (sligthly better than GMII), Sigma has a really great AF speed, even better control of CA than Sony GMII, great flare resistance, very little fringing even in the extreme cases.
- Image quality : better edges for GMII at 70mm (otherwise, very close), less fringing with the Sigma, Gerald is very impressed by Sigma's image quality (very close to the GMII, if not better depending on the topic)
p.1 #16 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
Finally Damien's review (sorry it's in french) who does compare the Sigma DN with the Tamron G2 and the Sony GM2 :
A few take aways :
- Image Quality :
a) Sharpness is very close with these 3 zooms (he had to go through 200% magnification to see small differences).
Interestingly (or not), he saw a slight better sharpness of the Sigma vs GM II in the corners at 200mm wide open.
Closing the aperture and we won't see any difference at all.
b) Bokeh : GMII and Sigma have a better bokeh than the Tamron (portaits with trees in background) and bokeh shapes are slightly better than with the Tamron.
- AF success rate on moving sujbect towards the photographer : Tamron and Sigma have a very similar succes rate. GMII is better.
- Stabilization : he does confirm Gerald's analysis and does state that Sigma stabilization is even better than the GMII stab.
- Ergonomics : Tamron & Sigma zoom and focus rings have a reverse position vs GMII (not good handling/ergonomics).
- Build quality : Sigma and GMII are clearly ahead of Tamron (in terms of build materials quality, internal zooming -> whether sealing).
GMII has off course all the bells and whistles (TC compatibility and speed limits, internal focus breathing compensation, ...you name it)
p.1 #18 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
I used to think that all the people who wanted the Sigma had long ago gave up and purchased the GMii. But for many people with an A7 series body, these Sigma 2.8 zooms are a great deal and free up funds to buy more glass. Choices are good, and it seems that Sigma is offering at least 75% of the capability of the GMii at half the price.
p.1 #19 · Sigma 70-200mm f/2.8 DG DN OS Sports for Sony E and Leica L
nicephore wrote:
Christopher Frost in his review at 2mins and 30 sec does say about the collar "Unfortunately, it's quite hard to remove", suggesting that there may be a possibility (probably the foot, not the whole collar)
200mm at f/2.8 is subpar - either his sample or perhaps slightly misfocused.
. Bang for buck, Tamron G1 is tough to beat IMHO.