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Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2

  
 
syrcular
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p.1 #1 · p.1 #1 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Hi all!

I'm having a little debate with myself between these two lenses, right now. I currently own the Tamron 28-75 G2 and just picked up the Sony 24-70 GM II, last week. Both lenses are fantastic, but I have to say I was expecting a bit more of a difference between the two lenses, and quickly discovered, optically that they are not that different at all. So I'm actually starting to wonder if I may return the Sony lens. I plan on doing some side-by-side testing this weekend, but so far in my initial test, I don't see a very distinct difference between the GM and the G2 from an optical perspective (except for maybe some advanced in sharpness on the corners with the Sony).

Of course, the pros that attracted many of us are the features that the GM provides. Here are the features that attracted me to buying it:

• Aperture Ring

• Support for 30fps on my A1

• 24mm focal length

But after really thinking about it, I'm starting to wonder if these three big features are that much of a game-changer for me. First off I'm more of a prime shooter than a zoom shooter, so when I bought into the Tamron system I liked their compact design, similar enough to my primes, and also their price so that I could justify having a set of zooms, without breaking the bank.

The aperture ring is an absolute plus, and I'm using it on all my GM primes, so there's no argument that it's a great feature to have but is it worth the extra money alone, I'd say no for me at least. Plus I can actually program the focus ring on the Tamron to toggle over as a declicked aperture ring, if I was using AF exclusively, which is a nice option on the Tamron.

As far as support for 30fps on my A1. This is one of those things, where it was more about having the capability "just in case" than my actual use case. The reality is I generally stay in the 15fps or under, shooting portraits, events and some photojournalism. I rarely do sports and typically you don't shoot birds in flight or even wildlife with a 24-70mm f2.8 Zoom. So the extra fps capability is something I don't utilize that often, if at all.

The last feature is the one to debate around, for a bit. I am a big fan of the 24mm focal length and own a 24mm f1.4 GM prime, I use very often. In moments where I have used the Tamron, I have sometimes wanted that extra wide, but in most of those situations, I've been in a position to switch lenses to perhaps the 24mm f1.4 GM prime or crack out my second body if necessary, and actually, after prolonged use of the 28-75 zoom, it became less and less of an issue. I mostly use the 28-75 zoom for either travel or documentary/photojournalism application and 28-75 is a good range for that. I also do like the compact nature of the Tamron. The lens barrel is smaller than the GM II and I do like the usage of the 67mm filter size that the Tamron supports, since it matches many of my Sony GM primes, like the 20mm f1.8 G, 24mm f1.4 GM , 35mm f1.4 GM and 85mm f1.8. I'm also pretty surprised how much better the G2 resolved on high-resolution sensors compared to its previous G1. I think had the G2 not yet been released, I would be having less of a debate with myself. But the G2 resolves quite well and sharp with the A1 50mp sensor

The 24-70mm GM II is an amazing lens for its size, weight, and capabilities, no doubt. But I'm leaning toward the thinking that unless I have a specific professional reason to have this lens, there are far better options for half the cost that will get you 90-95% there.

I'm still reserving my final decision as I get a little more mileage on this new lens, but these are my initial thoughts.



Jun 23, 2022 at 10:41 AM
AGeoJO
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p.1 #2 · p.1 #2 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


If you were expecting to see a night and day difference between the two lenses, your expectation is unrealistic. Sorry, to put it bluntly. Some folks in the audiophile world would pay big bucks to be able to discern 5-10% difference. Keep in mind, the difference over there is significantly less tangible and sometimes more imagined than realistic. Here, the difference of 5-10% is more tangible and yes, it is visible.

Whether it is worth the money, will depend on your own needs and preference. Only you can tell and decide whether it is worth to you or not. To me being able to zoom to 24mm is a big factor and it is a matter of needing and putting on another lens or not.



Jun 23, 2022 at 11:27 AM
mudlake
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p.1 #3 · p.1 #3 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I think if you rarely use 24mm, keep the Tamron. However, I use 24mm all the time on my 24-70/2.8. I’ve owned the Tamron and missed the wider angle when needed.


Jun 23, 2022 at 11:45 AM
j4nu
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p.1 #4 · p.1 #4 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I think you have it broken down perfectly. 24-70GM II is the best 24-70/2.8 out there, but yes - it's still "just" 24-70. I'm also mostly a prime user and I was and am tempted from time to time to try out the new GM, but then I'm reminded I still need to sell my Sigma because I barely use it .
I think 24-70 is the real "workhorse" lens and I understand why it's the go-to lens for many pros, as it offers both a wide angle and a short tele (though for me personally it's a bit too short to be really tele, but I generally enjoy the ~65mm focal length). I settled for a different kind of lens as my "one" zoom, but if I were considering 24/28-70/75 I would have a hard time letting go of 24mm on the wide end (btw, the GM II is sharper than 24GM from what I've seen).
If you're looking for direct IQ differences against the Tamron, I think it's the corners, eps. wide-open, you need to look at. Sigma does a bit better than the Tamron and the GM II further improves there...



Jun 23, 2022 at 11:46 AM
ftllens
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p.1 #5 · p.1 #5 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Mount one. Take the other in bag. Go out and shoot and see if you want to swap. Whichever you reach for more is the one to keep.


Jun 23, 2022 at 12:16 PM
Fboss
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p.1 #6 · p.1 #6 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I'm interested in your final decision as I have the same debate.
Please can you post a couple of pictures showing the difference of rendering (if any), at ~ 50mm and 70mm f/2.8 ? I'm curious to see if the bokeh looks a bit different.



Jun 23, 2022 at 09:06 PM
wordfool
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p.1 #7 · p.1 #7 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Like a lot of people, I find that 4mm at the wide end a big deal and it's why I would not consider the Tamron. You can crop slightly to get from 70mm to an effective 75mm (and it's not a huge difference anyway). You cannot uncrop to get from 28mm to 24mm, and 4mm in wide-angle-land is significant. Plus, the whole point of a zoom like the 24-70 is to not have to change lenses very often, so needing another lens to get 24mm runs counter to that theory. Heck, why not just take three primes and call it a day?!

Also, having owned Tamron lenses (including the 28-75 for my Canon) and GM lenses, hands down I'd have greater confidence in the build and reliability of a GM lens, not to mention its AF accuracy and speed.

But in terms of bang for buck it's undoubtedly more of a toss up IMO with the advantage probably going to Tamron, depending on how much you value the advantages of the GM. You just have to decide the balance of you can afford and what's most important to you in terms of features and performance.



Jun 23, 2022 at 10:10 PM
aCuria
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p.1 #8 · p.1 #8 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Since you like 24mm allot, I think you can choose between these two lenses based solely on the 24mm capability.

I had the EF mount 28-75 + 70-200 and not having wider than 28mm was definitely a problem. I eventually got a 16-35, and sold the 28-75 after awhile for lack of use

If not having 24mm doesn’t bother you, then it’s down to cost and features.

Not having an aperture ring is a relatively small thing for me, but sometimes I do find myself reaching for a non-existent ring on the 55za. This has caused me to lose afew shots, but it’s not too hard to get used to not using the ring

30fps is a bigger deal. Actually, “30fps” is an inaccurate way to describe it, on paper it’s “<= 15fps” but some reviews and reports here have estimated the actual fps In balanced or af priority on some 3rd party lenses to be <=10fps. You have the lenses so you can test autofocus and fps for yourself on moving subjects. Also, if you don’t think you need fast tracking and fps maybe you don’t need an A1 either…

Another thing to watch out for is how the zooms render colors. I don’t know about the G2, but some of the old Tamron zooms tended to have a yellow color cast that you had to fix in post.

To throw a wrench into the works you could also run a 24GM + 50GM and ditch both zooms haha

Noise performance cropping from 24/1.4 to 35mm is better than shooting 35/2.8, and it’s the same thing for 50/1.2 vs 75/2.8!

If you are going to be swapping lenses from a 24GM to a 28-75 frequently anyway, I rather use a 50GM



Jun 24, 2022 at 01:58 AM
dugaut
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p.1 #9 · p.1 #9 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


The only reason I upgraded from the V1 Sony was for AF for sports. Maybe not even a big difference there.


Jun 24, 2022 at 05:40 AM
GMPhotography
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p.1 #10 · p.1 #10 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Not sure this is the comparison to make as mentioned that 4mm difference is big on the wide side. I can’t myself start at 28mm unless im sitting on a 20mm too. Than it be a easier Tammy decision. I think the real comparison is apples to apples in the Sigma 24-70. Most people buy zooms for less glass in the bag and cover needed focal lengths. The Tammy would make me add one. Granted im a wide angle guy. My advice take the price and add that last to the buying decision than weigh it in later in the process of deciding. Other things to add in that buying decision is your desire at photography. If you are more hard core hobbyist than go for the wall but if your a casual shooter and more just for fun than optical quality is not primary. Not that the Tammy is bad by any stretch but the Sony is a Pro grade lens. Not really a fair fight here


Jun 24, 2022 at 06:52 AM
 


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Fboss
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p.1 #11 · p.1 #11 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


@syrcular, by any chance do you have pictures that show the bokeh difference between the Sony and Tamron ?





Jun 27, 2022 at 08:48 AM
offtraildog
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p.1 #12 · p.1 #12 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Traveling with the Sigma 28-70. 28 is not Wide enough for my needs so I also carry the 20G. The 24-70 GM2 is waiting at home. Will see how it fits into my PD6 sling for a trip in Sept but it would replace the 20G and 28-70. Don’t need 1.8 and prefer an aperture ring for the zoom. Also expect there 24-70GM2 to be sharper at 70. so for me the decision is 24/sharper at 70/aperture ring. Would prefer 67mm but even with Kase magnetic filters I have rarely used them on my current trip so not a consideration.
For hiking I’ll take my primes/filters/tripods
For travel I only used my RSS Travel clamp once and never my leofoto mini so more casual photography



Jun 27, 2022 at 09:07 AM
cxpics
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p.1 #13 · p.1 #13 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I just picked up the Tamron G2 and it's quite amazing. I used to just carry a prime, usually a 40mm, while out hiking. I was always happy to just stitch a pano if I needed something wider. I see the Tamron as replacing the 35/40mm prime with added versatility. 24mm is nice but also not always wide enough either and you still get into a situation where you'd want another lens, so 28-75 is a compromise I'm happy to make as the lens still replaces a lot of other lenses for me. Where I'm not happy to compromise is the 16/17-28 lenses, the 28mm on the long end just isn't close enough to normal for me as a 1 lens solution.

Tamron G2 has much more satisfying build quality than the Tamron 17-28 I used to own. The GM is certainly nicer I'd imagine overall. But I also think GM lenses have a rather weak and fragile hood mount mechanism, whereas the Tamron I feel better about tossing it into a bag with the hood reverse mounted, particularly while hiking.



























Jun 27, 2022 at 10:23 AM
JVan_02
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p.1 #14 · p.1 #14 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


cxpics wrote:
I just picked up the Tamron G2 and it's quite amazing. I used to just carry a prime, usually a 40mm, while out hiking. I was always happy to just stitch a pano if I needed something wider. I see the Tamron as replacing the 35/40mm prime with added versatility. 24mm is nice but also not always wide enough either and you still get into a situation where you'd want another lens, so 28-75 is a compromise I'm happy to make as the lens still replaces a lot of other lenses for me. Where I'm not happy to compromise is
...Show more

Mooooooooore pics from this lens please. So hard to find sample galleries, and these are all fantastic.




Jun 27, 2022 at 01:06 PM
Bizhouse
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p.1 #15 · p.1 #15 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I bought the tamron a month ago and I couldn't be happier with it.
It's even replacing my viltrox 85mm 1.8 some nights.

One thing I love is the slightly muted colours it delivers.



Jun 27, 2022 at 01:24 PM
icantbebigwill
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p.1 #16 · p.1 #16 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Bizhouse wrote:
I bought the tamron a month ago and I couldn't be happier with it.
It's even replacing my viltrox 85mm 1.8 some nights.

One thing I love is the slightly muted colours it delivers.


I'm awaiting mine which should be here tomorrow assuming UPS gets it's act together (shipping shows it's been in the same location for over 48 hours now). I also have the Viltrox 85 1.8 which I adore, but was hoping to sell after getting the zoom. I hope I have the same findings.



Jun 27, 2022 at 01:46 PM
Chuck Coyne
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p.1 #17 · p.1 #17 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


I had the Tamron 28-75mm f/2.8 G2 lens and was very happy with the optical performance. Why I decided to sell that and go with the Sony 24-70 f/2.8 GM II was really for the better weather sealing, aperture ring, and 24mm on the wide end. I just could not get comfortable with the Tamron's lack of weather sealing and starting a 28mm on the wide end. But if those two things are not as important to you then the Tamron is a fine mid-range zoom and for the price you can't go wrong. It's certainly a great time to be in the Sony eco-system with all the lens choices we have today!

Edited on Jun 27, 2022 at 06:43 PM · View previous versions



Jun 27, 2022 at 02:53 PM
cxpics
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p.1 #18 · p.1 #18 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Chuck Coyne wrote:
I had the Tamron 28-77mm f/2.8 G2 lens and was very happy with the optical performance. Why I decided to sell that and go with the Sony 24-70 f/2.8 GM II was really for the better weather sealing, aperture ring, and 24mm on the wide end. I just could not get comfortable with the Tamron's lack of weather sealing and starting a 28mm on the wide end. But if those two things are not as important to you then the Tamron is a fine mid-range zoom and for the price you can't go wrong. It's certainly a great time
...Show more

Does Tamron have notably weaker weather sealing? I'm just curious as to what makes you say that because I've heard their sealing is good. If anything the Tamron rubber gaskets at the lens mount seem thicker and more robust than Sony's - not that that indicates real world performance or about other sealing around lens. I would love for manufacturers to have to provide more objective data on that sort of thing. I know Sigma does not seal their Contemporary line except at the mount but Tamron does a thorough job as far as I know. Aperture ring and 24mm are very good reasons to go for the Sony though.

I had a flip flop get caught in wet sand which threw up a glob of wet sand onto my 24GM. Aperture and focus rings were very coarse and grindy. I let it dry out then vacuumed along the lens to remove sand. It works as good as new as far as I can tell. So I can at least attest to that level of sealing, which was impressive. I would expect the same of my Tamron though.








Jun 27, 2022 at 03:14 PM
Chuck Coyne
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p.1 #19 · p.1 #19 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


The "weather-sealed" is probably more accurately "weather resistant" but the below is taken from a Lens Rental write up of the Sony GM series and some of what makes the GM line their premium lens line.


"G-Master Series Quality. The GM series is Sony’s premium lens offering. What sets it apart from other Sony lenses is an emphasis on an extremely high resolving power of fifty lines per mm, out-of-focus “bokeh” quality, and a robust, weather-sealed body."


I've seen other Sony GM write ups mentioning this weather-sealed feature as well over the years. I can certainly feel a more solid construction to the GM lens body when compared to the Tamron. But then again for the difference in cost one would expect that to be the case.



Jun 27, 2022 at 07:04 PM
JVan_02
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p.1 #20 · p.1 #20 · Sony 24-70mm f2.8 GM II vs Tamron 28-75mm f2.8 G2


Chuck Coyne wrote:
The "weather-sealed" is probably more accurately "weather resistant" but the below is taken from a Lens Rental write up of the Sony GM series and some of what makes the GM line their premium lens line.


"G-Master Series Quality. The GM series is Sony’s premium lens offering. What sets it apart from other Sony lenses is an emphasis on an extremely high resolving power of fifty lines per mm, out-of-focus “bokeh” quality, and a robust, weather-sealed body."


I've seen other Sony GM write ups mentioning this weather-sealed feature as well over the years. I can certainly feel a more solid construction
...Show more


Until Sony actually puts their gear through an IP-rating process, all we'll ever know about sealing between lenses that have full ingress sealing is that they're sealed. Until that point, saying one lens is sealed better than the other is basically hearsay unless you have direct evidence between two models from someone like Rodger.



Jun 28, 2022 at 01:44 AM
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