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LensRentals 16-35mm f/2.8 GM MTF Tests
  
 
Fred Miranda
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p.1 #1 · p.1 #1 · LensRentals 16-35mm f/2.8 GM MTF Tests


LensRentals 16-35mm f/2.8 GM MTF Tests
Roger Cicala at LensRentals just posted MTF and Variance Testing for the new Sony FE 16-35mm f/2.8 GM.
There is also a comparison to the FE 12-24mm f/4G, FE 16-35mm f/4 ZA and Canon EF 16-35mm f/2.8L III lenses.

Here is an except from Roger's summary:

"The Sony 16-35mm f/2.8 GM lens is an excellent optic at 16mm and 24mm. If you want to shoot wide at f/2.8 on an FE mount camera itís probably the optic of choice. The 16-35 ZA f/4 is a good lens and a lot cheaper if you donít need f/2.8, but the GM is just better optically. Itís not better or worse than the Canon 16-35mm f/2.8L Mk III, itís different, and some people will certainly like itís look better.

But if you plan on using it at 35mm, which I generally donít recommend for wide zooms if you have alternatives, well, youíre probably going to go through several copies before you find the one you want. Personally, I think itís a really good 16-24mm f/2.8 zoom that can be used at 35mm if you have to."

Read entire review.

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Sony FE 16-35mm f/2.8 GM:
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Sony FE 16-35mm f/2.8 GM vs Canon 16-35mm f/2.8 L Mk III @16mm






Sony FE 16-35mm f/2.8 GM vs Canon 16-35mm f/2.8 L Mk III @24mm






Sony FE 16-35mm f/2.8 GM vs Canon 16-35mm f/2.8 L Mk III @35mm




Aug 12, 2017 at 09:35 PM
Messier77
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p.1 #2 · p.1 #2 · LensRentals 16-35mm f/2.8 GM MTF Tests


The LensRentals tests are up for the 16-35mm f/2.8 GM!

https://www.lensrentals.com/blog/2017/08/sony-fe-16-35mm-f2-8-gm-sharpness-tests/



Aug 12, 2017 at 07:18 PM
Luvwine
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p.1 #3 · p.1 #3 · LensRentals 16-35mm f/2.8 GM MTF Tests


Really interesting. Would have been nice to see a comparison with the 12-24 at 16, but based upon the numbers at 24, I would say there is no compelling reason for me to ditch the 12-24 in favor of the 16-35. The 12-24 is also, as Roger noted, way better between 12 and 16....


Aug 12, 2017 at 07:48 PM
Chuck Coyne
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p.1 #4 · p.1 #4 · LensRentals 16-35mm f/2.8 GM MTF Tests


Thank you very much Roger for these MTF's. It really helps me with a tough decision that I was pondering like so many others in the Sony camp as well. I pretty much decided that I will keep the FE 12-24 G for my wide angle zoom of choice and added the FE 24-70 GM to cover the 24-35-50 focal lengths. If I really needed to have a 16-24 f/2.8 lens I would keep the 16-35 GM but I really don't for my type of shooting. The exception being for the occassional astro work which I currently do using an FE mount Samyang 14mm f/2.8 with pretty decent results. I'll look at the new 14mm and 15mm lenses that are coming out and decide if it worth upgrading to one of those for the astro work.

Chuck



Aug 12, 2017 at 07:58 PM
Neurad1
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p.1 #5 · p.1 #5 · LensRentals 16-35mm f/2.8 GM MTF Tests


Really agree that a comparison of all three lenses (12-24, 16-35 2.8 and 16-35 F4) at 16mm would have been great.


Aug 12, 2017 at 08:14 PM
Chuck Coyne
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p.1 #6 · p.1 #6 · LensRentals 16-35mm f/2.8 GM MTF Tests


Neurad1 wrote:
Really agree that a comparison of all three lenses (12-24, 16-35 2.8 and 16-35 F4) at 16mm would have been great.



I can tell you that I tested my 12-24 G and a 16-35 GM and found that they are very similar at 16mm - 24mm focal lengths in terms of sharpness in the center and out to the mid frame and corners. At f/5.6, f/8, f/11 they were virtually indistinguishable from one another with some very intense pixel peeping. I'd give the edge slightly to the 16-35 at f/4 and of cause the 12-24 G isn't any good at f/2.8

Chuck



Aug 12, 2017 at 08:23 PM
stevei
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p.1 #7 · p.1 #7 · LensRentals 16-35mm f/2.8 GM MTF Tests


The huge copy variation at 35mm pretty much prevents me from buying one. The whole point of buying it would be that 25-35 is a more useful focal length range to me than 12-15. I just haven't got the stomach for buying and returning goodness knows how many copies to get one that doesn't suck at 35mm.


Aug 12, 2017 at 08:35 PM
Neurad1
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p.1 #8 · p.1 #8 · LensRentals 16-35mm f/2.8 GM MTF Tests


Chuck Coyne wrote:
I can tell you that I tested my 12-24 G and a 16-35 GM and found that they are very similar at 16mm - 24mm focal lengths in terms of sharpness in the center and out to the mid frame and corners. At f/5.6, f/8, f/11 they were virtually indistinguishable from one another with some very intense pixel peeping. I'd give the edge slightly to the 16-35 at f/4 and of cause the 12-24 G isn't any good at f/2.8

Chuck


Thanks, Chuck. I own the 24-70 2.8 so hopefully the fact that I've already ordered the 12-24 instead of the 16-35 2.8 won't turn out to be the wrong choice (for me).




Aug 12, 2017 at 08:45 PM
RFMP
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p.1 #9 · p.1 #9 · LensRentals 16-35mm f/2.8 GM MTF Tests


I guess I got lucky, mine is crazy sharp at 35 2.8 with great bokeh. I really haven't checked the other focal lengths or apertures.


Aug 12, 2017 at 08:58 PM
Messier77
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p.1 #10 · p.1 #10 · LensRentals 16-35mm f/2.8 GM MTF Tests


This really makes my lens choice for stormchasing difficult. I need excellent flare resistance and f/2.8 is useful for lower light situations when I can't set up a tripod. But 12mm would be a lot better than 16mm for some of those monster supercells on the plains. I was hoping that the 16-35 GM would be so much better than the 12-24 that it would be an easy choice. Decisions, decisions, decisions.


Aug 12, 2017 at 09:12 PM
 

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Wanny
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p.1 #11 · p.1 #11 · LensRentals 16-35mm f/2.8 GM MTF Tests


RFMP wrote:
I guess I got lucky, mine is crazy sharp at 35 2.8 with great bokeh. I really haven't checked the other focal lengths or apertures.


Same, mine is very very sharp at all lengths.



Aug 12, 2017 at 09:33 PM
Viramati
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p.1 #12 · p.1 #12 · LensRentals 16-35mm f/2.8 GM MTF Tests


Well my copy appears to be very good at 35mm and a love the bokeh that it produces. It also is very resistant to flare which I believe is not one of the 12-24 strong points. I do feel though that for me the 16-35 is a more useful range as I can combine it with the FE70-300 G for landscape work giving me less of a gap between focal lengths. Thanks for the testing


Aug 12, 2017 at 09:38 PM
Fred Miranda
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p.1 #13 · p.1 #13 · LensRentals 16-35mm f/2.8 GM MTF Tests


It's worth noting that the Canon is only noticeably superior at dead center.

Once you move a tiny bit from "0" to "2", they are pretty much equal. I would still consider this 'center area'.
So, the visible advantage for the Canon won't easily detected in the real world even though it looks better in charts. (Especially once we consider sample variation)

The GM on the other hand is able to hold on to resolution slightly better until "10" (around mid-field) and seems to be better astigmatism/LaCA correction towards the edges. (At 16 and 24mm)



Aug 12, 2017 at 09:43 PM
SoundHound
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p.1 #14 · p.1 #14 · LensRentals 16-35mm f/2.8 GM MTF Tests


Don't know about the GM but I read a review that said the Canon had 4 stops of vignetting at F2.8. Rather buy the F4 version since the MKIII should be stopped down st least to F4.



Aug 13, 2017 at 12:28 AM
Parariss
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p.1 #15 · p.1 #15 · LensRentals 16-35mm f/2.8 GM MTF Tests



Chuck Coyne wrote:
I can tell you that I tested my 12-24 G and a 16-35 GM and found that they are very similar at 16mm - 24mm focal lengths in terms of sharpness in the center and out to the mid frame and corners. At f/5.6, f/8, f/11 they were virtually indistinguishable from one another with some very intense pixel peeping. I'd give the edge slightly to the 16-35 at f/4 and of cause the 12-24 G isn't any good at f/2.8

Chuck


Chuck,
Does your first sentence refer to f2.8 vs f4 or f4 vs f4?
Thx



Aug 13, 2017 at 01:22 AM
Chuck Coyne
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p.1 #16 · p.1 #16 · LensRentals 16-35mm f/2.8 GM MTF Tests


I was referring to f/4 vs f/4. I would give a very slight edge to the 16-35 at f/4 in the extreme corners. The center and mid frame are very similar.

Chuck



Aug 13, 2017 at 02:11 AM
photomadnz
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p.1 #17 · p.1 #17 · LensRentals 16-35mm f/2.8 GM MTF Tests


Ive never had a F4 ZA that Id call good in the corners! And Ive tried a few... On the other hand, Ive tried 2 copies of the GM and they have both been significantly better..


Aug 13, 2017 at 02:54 AM
Jacknut16
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p.1 #18 · p.1 #18 · LensRentals 16-35mm f/2.8 GM MTF Tests


This is exactly what I'm going through, I think 16-35 can be useful
For super cells to wide tornado shots. But for being under a super cell, the 12-24 is going to dominate. Then combine with the 24-70 when you start getting tornadic stuff going on.
Even better? The 10mm voigtlander. I got published on Natgeo shooting with that thing under a super cell. It's stolen the show during chasing on more than one occasion.


Messier77 wrote:
This really makes my lens choice for stormchasing difficult. I need excellent flare resistance and f/2.8 is useful for lower light situations when I can't set up a tripod. But 12mm would be a lot better than 16mm for some of those monster supercells on the plains. I was hoping that the 16-35 GM would be so much better than the 12-24 that it would be an easy choice. Decisions, decisions, decisions.




Aug 13, 2017 at 05:18 AM
pdmphoto
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p.1 #19 · p.1 #19 · LensRentals 16-35mm f/2.8 GM MTF Tests


photomadnz wrote:
Ive never had a F4 ZA that Id call good in the corners! And Ive tried a few... On the other hand, Ive tried 2 copies of the GM and they have both been significantly better..


I think the recently manufactured ZA 16-35/4 lenses are better than the older copies. I took a gamble and bought a recent one used, in like new condition. It does very well into the corners, although IQ in general starts to decline around 24mm.



Aug 13, 2017 at 05:43 AM
photomadnz
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p.1 #20 · p.1 #20 · LensRentals 16-35mm f/2.8 GM MTF Tests


Hard to say. I work at a pro dealer so we turn them over frequently and Ive tried many of them. Even recent copies. Im sure there are 'better' copies out there. Ive just never found one!

I basically stuck to my Canon 16-35mm F4 as I had an excellent copy and it was better in every side by side I did. Trialing the GM however has convinced me to move to native finally.....



Aug 13, 2017 at 05:51 AM
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