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Archive 2016Sony FE 24-70mm f/2.8 GM Rolling Review
p.52 #1Sony FE 24-70mm f/2.8 GM Rolling Review
SPDTDL wrote:
Ahh yes I forgot about 6.3
Something like this?
https://photos.smugmug.com/Tutorial-Galleries/Sony-G-Master-FE-2470-Review/i-vPGFDDz/0/M/2470-M.jpg
From your latest chart, the 24-50mm range looks right to me. After that I'm not sure as I didn't test intermediate apertures after 50mm.
I'm getting another copy next week and if I get lucky and it's a good one, I will test the 50-70mm range with more scrutiny.
Let me see if I find some crops showing the difference between f/8 and f/11 at 70mm...
Ahh yes I forgot about 6.3
Something like this?
https://photos.smugmug.com/Tutorial-Galleries/Sony-G-Master-FE-2470-Review/i-vPGFDDz/0/M/2470-M.jpg
From your latest chart, the 24-50mm range looks right to me. After that I'm not sure as I didn't test intermediate apertures after 50mm.
I'm getting another copy next week and if I get lucky and it's a good one, I will test the 50-70mm range with more scrutiny.
Let me see if I find some crops showing the difference between f/8 and f/11 at 70mm...
Nov 18, 2016 at 01:59 PM
p.52 #2Sony FE 24-70mm f/2.8 GM Rolling Review
So, there is an improvement for the extreme edges at 70mm going from f/8 to f/11. However, at the center, there is a slight hit in micro-contrast.
I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field. (center and edges)
See crops below:
Extreme Edges (f/8 and f/11)
Center (f/8 and f/11)
I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field. (center and edges)
See crops below:
Extreme Edges (f/8 and f/11)
Center (f/8 and f/11)
Nov 18, 2016 at 02:10 PM
p.52 #3Sony FE 24-70mm f/2.8 GM Rolling Review
BTW: Here is a thumb showing the entire image and the sections we are reviewing.
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Nov 18, 2016 at 02:17 PM
p.52 #4Sony FE 24-70mm f/2.8 GM Rolling Review
70 was my most tested, did about 200 tests at this length. Corner sharpness between f10 and f11 is very very slightly better at f11, however this then drops the center. So I'd rather go for f10, as you really can't notice the corner difference unless you're on a mission to find it.
Edited on Nov 18, 2016 at 05:52 PM · View previous versions
Edited on Nov 18, 2016 at 05:52 PM · View previous versions
Nov 18, 2016 at 03:10 PM
p.52 #5Sony FE 24-70mm f/2.8 GM Rolling Review
The F11 at 70mm indeed has better Sag resolution than the 8. See those clean and slim vertical lines. The astigmatism is quite much improved in the F11 setting, very pleasing to eye and the sharpening will be easy to apply there. This is the same in my observations.
I agree the center is a tiny bit weaker in F11, but that should be improvable by adding a little more details in sharpening. Look forward to the battle between F9/10/11.
I agree the center is a tiny bit weaker in F11, but that should be improvable by adding a little more details in sharpening. Look forward to the battle between F9/10/11.
Nov 18, 2016 at 03:34 PM
p.52 #6Sony FE 24-70mm f/2.8 GM Rolling Review
Thanks all. Some very useful input here.
Nov 18, 2016 at 04:30 PM
p.52 #7Sony FE 24-70mm f/2.8 GM Rolling Review
Fred Miranda wrote:
Since we are being extremely picky (
), I would also give 40mm until 50mm, f/6.3 as the optimum aperture. I don't see any difference for the edges going from f/6.3 to f/7.1 to f/8 and the center looks better at f/6.3 (40-50mm)
NOTE: You need a perfect lens to see these aperture differences. I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.
In my original tests I went from 5.6 > 8. Retested today, and you're spot on.
Chart updated accordingly.
Since we are being extremely picky (
), I would also give 40mm until 50mm, f/6.3 as the optimum aperture. I don't see any difference for the edges going from f/6.3 to f/7.1 to f/8 and the center looks better at f/6.3 (40-50mm)NOTE: You need a perfect lens to see these aperture differences. I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.
In my original tests I went from 5.6 > 8. Retested today, and you're spot on.
Chart updated accordingly.
Nov 19, 2016 at 10:13 AM
p.52 #8Sony FE 24-70mm f/2.8 GM Rolling Review
Should be its only 52 pages long. 
Viramati wrote:
Thanks all. Some very useful input here.
Viramati wrote:
Thanks all. Some very useful input here.
Nov 19, 2016 at 10:15 AM
p.52 #9Sony FE 24-70mm f/2.8 GM Rolling Review
Fred Miranda wrote:
I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.
How did you drop it?
It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking! 3 points of failure!
I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.
How did you drop it?
It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking!
3 points of failure!I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
Nov 19, 2016 at 10:18 AM
p.52 #10Sony FE 24-70mm f/2.8 GM Rolling Review
SPDTDL wrote:
How did you drop it?
It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking! 3 points of failure!
I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
A while back, I brought the lens to Yosemite and on the first day, while wearing wool gloves, I quickly wanted to swap lenses in the parking lot before starting my hike. Unfortunately, the lens slipped and felt into the concrete floor in a very bad way.
A quick test proved to be game over for it.
Fred Miranda wrote
I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking!
3 points of failure!I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
A while back, I brought the lens to Yosemite and on the first day, while wearing wool gloves, I quickly wanted to swap lenses in the parking lot before starting my hike. Unfortunately, the lens slipped and felt into the concrete floor in a very bad way.
A quick test proved to be game over for it.
Nov 19, 2016 at 11:24 AM
p.52 #11Sony FE 24-70mm f/2.8 GM Rolling Review
Hope you burned those gloves. Lol
Nov 19, 2016 at 11:26 AM
p.52 #12Sony FE 24-70mm f/2.8 GM Rolling Review
SPDTDL wrote:
How did you drop it?
It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking! 3 points of failure!
I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
The only range I'm not 100% sure is the 60-70mm.
Although I know the corners improved from f/8 to f/11 at 70mm, I'm still not sure about intermediate apertures and how it performs at 60mm and 65mm in comparison. Hopefully I get a good copy of this lens and do some tests on it.
I know that 60mm and 65mm looks better than 70mm, so perhaps having this entire range at f/10 may not be accurate in our picky tests.
If we agree, once we come up with a final update for this graph, I would like to add it to the first post.
Fred Miranda wrote
I used to have one but it felt on the ground and lost its mojo...I'm on the hunt for another one.It is worrying, I use peak design clutch, with a peak design strap around my neck at the same time and I support the lens with my left hand while walking!
3 points of failure!I've always wondered how strong the silver triangle strap supports are on the sides of the camera!
The only range I'm not 100% sure is the 60-70mm.
Although I know the corners improved from f/8 to f/11 at 70mm, I'm still not sure about intermediate apertures and how it performs at 60mm and 65mm in comparison. Hopefully I get a good copy of this lens and do some tests on it.
I know that 60mm and 65mm looks better than 70mm, so perhaps having this entire range at f/10 may not be accurate in our picky tests.
If we agree, once we come up with a final update for this graph, I would like to add it to the first post.
Nov 19, 2016 at 11:34 AM
p.52 #13Sony FE 24-70mm f/2.8 GM Rolling Review
Fred, Guy said that he would be in Southern California in January or so. Maybe we can look you up and get together then. If you get a keeper by then, I would like to pit my lens against yours .
. Nov 19, 2016 at 12:35 PM
p.52 #14Sony FE 24-70mm f/2.8 GM Rolling Review
Be there 12/28-1/9. Most definitely do a get together.
Nov 19, 2016 at 12:57 PM
p.52 #15Sony FE 24-70mm f/2.8 GM Rolling Review
I'm hiding from my wife , I went to the Apple Store
I ordered the 15 inch 2.9/16gb/1 Tb/high end graphic card 460. My wallet is stinging badly
Nice tax break. Lol
I ordered the 15 inch 2.9/16gb/1 Tb/high end graphic card 460. My wallet is stinging badly
Nice tax break. Lol
Nov 19, 2016 at 01:06 PM
p.52 #16Sony FE 24-70mm f/2.8 GM Rolling Review
I will be in Yosemite for New Years with my family. Perhaps we can meet when I come back.
Nov 19, 2016 at 01:46 PM
p.52 #17Sony FE 24-70mm f/2.8 GM Rolling Review
Fred Miranda wrote:
I will be in Yosemite for New Years with my family. Perhaps we can meet when I come back.
I am open to that, too. As a retiree, I have plenty of time
. I will defer to Guy to set up the date.
I will be in Yosemite for New Years with my family. Perhaps we can meet when I come back.
I am open to that, too. As a retiree, I have plenty of time
. I will defer to Guy to set up the date. Nov 19, 2016 at 02:04 PM
p.52 #18Sony FE 24-70mm f/2.8 GM Rolling Review
Fred Miranda wrote:
So, there is an improvement for the extreme edges at 70mm going from f/8 to f/11. However, at the center, there is a slight hit in micro-contrast.
I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field.
See crops below:
Maybe I'm not understanding this post, but I see a pretty large hit in sharpness in the center and relatively little improvement in the corners. Are these posted backwards?
---Michael
So, there is an improvement for the extreme edges at 70mm going from f/8 to f/11. However, at the center, there is a slight hit in micro-contrast.
I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field.
See crops below:
Maybe I'm not understanding this post, but I see a pretty large hit in sharpness in the center and relatively little improvement in the corners. Are these posted backwards?
---Michael
Nov 20, 2016 at 03:45 PM
p.52 #19Sony FE 24-70mm f/2.8 GM Rolling Review
mjm6 wrote:
I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field.
See crops below:Maybe I'm not understanding this post, but I see a pretty large hit in sharpness in the center and relatively little improvement in the corners. Are these posted backwards?
---Michael
Hi Michael,
As you noticed, closing the aperture to f/11 definitely degrades the image, especially in the center area. (If it's recoverable in post is another story)
With some lenses, intermediate apertures like f/9 or f/10 is sometimes preferred. I just never tested the 24-70GM at 70mm with these apertures. Perhaps all that's needed is an extra 1/3 of stop for optimum resolution/contrast throughout the frame.
With my 16-35/4 ZA at 35mm, I get best results for landscapes at f/9 with the A7RII.
Fred Miranda wrote
So, there is an improvement for the extreme edges at 70mm going from f/8 to f/11. However, at the center, there is a slight hit in micro-contrast.I don't have intermediate apertures like f/9 and f/10 to compare so I'm not sure. It could be that f/9 it's all that's needed for optimum sharpness across the field.
See crops below:
---Michael
Hi Michael,
As you noticed, closing the aperture to f/11 definitely degrades the image, especially in the center area. (If it's recoverable in post is another story)
With some lenses, intermediate apertures like f/9 or f/10 is sometimes preferred. I just never tested the 24-70GM at 70mm with these apertures. Perhaps all that's needed is an extra 1/3 of stop for optimum resolution/contrast throughout the frame.
With my 16-35/4 ZA at 35mm, I get best results for landscapes at f/9 with the A7RII.
Nov 20, 2016 at 07:03 PM
p.52 #20Sony FE 24-70mm f/2.8 GM Rolling Review
at 24mm f/2.8 is this lens solid? basically I gather it falls off around 60mm-70mm which I've read.
But I'm debating the 24-70mm GM f/2.8 or repurchasing the batis 25mm f/2.
I really like the look of doing 25mm portraits
batis 25mm at f/2
Mellow Mushroom - JAX by Johnavon, on Flickr
But I'm debating the 24-70mm GM f/2.8 or repurchasing the batis 25mm f/2.
I really like the look of doing 25mm portraits
batis 25mm at f/2
Mellow Mushroom - JAX by Johnavon, on FlickrNov 20, 2016 at 08:17 PM