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Sony FE 135mm f/1.8 GM Review

Jannik Peters
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p.7 #1 · p.7 #1 · Sony FE 135mm f/1.8 GM Review

Thank you!

So the Sigma 1.8/135 seems to be a bit like the Samyang 2/135 when it comes to color cast.

Mar 19, 2019 at 04:03 PM

Stoffer
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p.7 #2 · p.7 #2 · Sony FE 135mm f/1.8 GM Review

Fred, if you get a chance to test their sharpness at near MFD, I would be much obliged. I know the infinity test is more important to get done, but I'm curious about their MFD behavior also.

Mar 19, 2019 at 04:08 PM

bluloo
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p.7 #3 · p.7 #3 · Sony FE 135mm f/1.8 GM Review

The Sigma looks tremendous. Didn't expect them to be nearly indistinguishable.

I wonder if the Sigma and GM are going to be *this* close using sensors in the current size range (something like 43-50MP), where the GM may really outshine the Art with something like future 60-100MP sensors.

Mar 19, 2019 at 04:39 PM

Fred Miranda
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p.7 #4 · p.7 #4 · Sony FE 135mm f/1.8 GM Review

Here is a 1:2 crop showing the focus transition focus zone between the Sigma and GM 135:

1:2 mag.

Mar 19, 2019 at 04:40 PM

brafman
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p.7 #5 · p.7 #5 · Sony FE 135mm f/1.8 GM Review

Go team Sigma

Mar 19, 2019 at 04:46 PM

bluloo
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p.7 #6 · p.7 #6 · Sony FE 135mm f/1.8 GM Review

I like Sigma background on the 1:2 mag. Surprising.

Mar 19, 2019 at 04:48 PM

Fred Miranda
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p.7 #7 · p.7 #7 · Sony FE 135mm f/1.8 GM Review

The 1:1 crop below shows the Sony noticeably sharper. I can even see the difference in sharpness between the two lenses in the viewfinder when manual focusing at 12x magnification.

It looks like the Sony has slightly smoother foreground bokeh while the Sigma has slightly smoother background bokeh.
This indicates that Sony has stronger spherical aberration correction in comparison.

1:1 crop

Mar 19, 2019 at 04:50 PM

Jannik Peters
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p.7 #8 · p.7 #8 · Sony FE 135mm f/1.8 GM Review

Wow, the transition zone of the GM looks much smoother and shows significantly less LoCA.

The Sigma shows more SA, this lets the transition zone look a little bit smoother in contrast in 1:1 magnification.

Mar 19, 2019 at 04:52 PM

GMPhotography
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p.7 #9 · p.7 #9 · Sony FE 135mm f/1.8 GM Review

Looks sharper too. I did not read Fred’s comments.

Edited on Mar 19, 2019 at 04:57 PM · View previous versions

Mar 19, 2019 at 04:55 PM

bluloo
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p.7 #10 · p.7 #10 · Sony FE 135mm f/1.8 GM Review

thanks for the crop. I was wondering if the Sigma would hold up there.

Edited on Mar 19, 2019 at 04:58 PM · View previous versions

Mar 19, 2019 at 04:56 PM

Fred Miranda
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p.7 #11 · p.7 #11 · Sony FE 135mm f/1.8 GM Review

I'm analyzing these images at 1:2 and 1:1 mag. and although there is a difference and the Sigma is indeed less corrected for SA, the overall rendering and look between these two lenses is very similar. Perhaps a bigger difference will be seen against the 85/1.4 GM.
The 135 GM is sharper than the Sigma but the latter is no slouch. Their CA correction is also similar. (Hint: very low LoCA)

One more transition zone sample:

Mar 19, 2019 at 05:04 PM

Steve Spencer
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p.7 #12 · p.7 #12 · Sony FE 135mm f/1.8 GM Review

Jannik Peters wrote:
Wow, the transition zone of the GM looks much smoother and shows significantly less LoCA.

The Sigma shows more SA, this lets the transition zone look a little bit smoother in contrast in 1:1 magnification.

Yeah, that's what I see too.

Mar 19, 2019 at 05:05 PM

Fred Miranda
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p.7 #13 · p.7 #13 · Sony FE 135mm f/1.8 GM Review

Mar 19, 2019 at 05:14 PM

GMPhotography
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p.7 #14 · p.7 #14 · Sony FE 135mm f/1.8 GM Review

Now on my computer the above crop the GM seems to have more 3d effect. That center blade just stands out more

BTW dont use your iPhone. Threw me way off

Edited on Mar 19, 2019 at 05:17 PM · View previous versions

Mar 19, 2019 at 05:17 PM

vdo1
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p.7 #15 · p.7 #15 · Sony FE 135mm f/1.8 GM Review

Fred Miranda wrote:
While I'm waiting for better lighting...

Same exposure (Manual), same focus, same processing (LR default) and same aperture. Which rendering do you prefer best.

Which one is the GM 135/1.8? A or B?

I couldn’t tell which is which (I just peeked at the answer

)There also wasn’t anything that would trigger a strong preference. Some bokeh was smoother in the Sigma but not anything dramatic. On the other hand, I had the impression that it also has more LoCA (look at the texture in the chair, there is a more pronounced regular greenish pattern in the OOF area). Again, not anything dramatic.

Mar 19, 2019 at 05:17 PM

jtra
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p.7 #16 · p.7 #16 · Sony FE 135mm f/1.8 GM Review

Fred Miranda wrote:
One more transition zone sample

Fred, what is the focus distance in your transition samples?

Can you take comparison picture with even longer focus distance?

Mar 19, 2019 at 05:19 PM

vdo1
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p.7 #17 · p.7 #17 · Sony FE 135mm f/1.8 GM Review

Fred Miranda wrote:
I'm analyzing these images at 1:2 and 1:1 mag. and although there is a difference and the Sigma is indeed less corrected for SA, the overall rendering and look between these two lenses is very similar. Perhaps a bigger difference will be seen against the 85/1.4 GM.
The 135 GM is sharper than the Sigma but the latter is no slouch. Their CA correction is also similar. (Hint: very low LoCA)

One more transition zone sample:

We need a reference too, I have no experience with any of the 135’s. Something well known and very double vision like a vintage sharp Planar.

Mar 19, 2019 at 05:20 PM

Fred Miranda
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p.7 #18 · p.7 #18 · Sony FE 135mm f/1.8 GM Review

Come on guys! By now we should get this right...

Which one is which?

Sample 3

Mar 19, 2019 at 05:20 PM

bluloo
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p.7 #19 · p.7 #19 · Sony FE 135mm f/1.8 GM Review

This really speaks highly of the engineers at Sigma.

A is Sigma.
Marginally smoother background bokeh, while B has better subject contrast and may be a bit sharper.

Edited on Mar 19, 2019 at 05:26 PM · View previous versions

Mar 19, 2019 at 05:23 PM

Fred Miranda
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p.7 #20 · p.7 #20 · Sony FE 135mm f/1.8 GM Review

jtra wrote:
Fred, what is the focus distance in your transition samples?

Can you take comparison picture with even longer focus distance?

I was at 16 feet (5m). Do you want to see it longer?

Mar 19, 2019 at 05:25 PM

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