Sigma vs Sony GM review: Sigma indeed matches the Sony GM performance!

Sigma 85mm f/1.4 FE preorder at BHphoto, Adorama, FocusCamera.

The German Youtube channel Krolop&Gerst made a 45min long comparison between the best 85mm FE lenses. The Sigma holds up very well against the Sony GM:

  • Sigma is sharper in the center
  • Sony GM has better sharpness in the corner
  • Sigma has a lot less CA
  • Similar Bokeh performance
  • very similar AF performance although the Sony seems to have a slight advantage on eye-af

Just switch on the auto translated subtitles if you don’t understand German:

Sigma 85mm f/1.4 FE preorder at BHphoto, Adorama, FocusCamera.

Gerald Undone: EOS-R5/6 have two stops less dynamic range than the Sony A7sIII. And he couldn’t bring the A7sIII to overheat

Gerald Undone is now becoming my personal review guru :)

He published the full Canon EOS-R5 and EOS-R6 review. Let’s start from the good part. They are near perfect cameras for photographers. But many do keep comparing those cameras with the new Sony A7sIII and if you want ot have a reliable video recording tool than the Canon cameras are quiet problematic:

  1. Canon still lags behind the Sony sensor tech. The EOS-R5/6 have two stops less dynamic range than the Sony A7sIII
  2. Overheating is bad but the real issue is the recovery time which cannot be shortened with any tricks (vent and ice cooling). On the other hand his Sony A7sIII never overheated
  3. What I didn’t expect: IBIS has some pretty bad wobbling.

New Sigma 85mm f/1.4 size comparison, image samples and autofocus test

Preorders:
85mm f/1.4 FE preorder at BHphoto, Adorama, FocusCamera.

This little Sigma 85mm f/1.4 seems to be real gem: Best 85mm lens in class (says Sigma) super compact, relatively cheap and great autofocus performance:

This is how much smaller it is compared to the ugly previous lens :)

And here it is compared with the Sony GM (courtesy of our reader “lee.arw”):

This is the lens on the Sony:

Click here to see the image samples:

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Sony A7sIII video sample and interview with Philip Bloom

Sony A7sIII Preorders:
Sony A7sIII in USA at Adorama (up to $400 off with lens). BHphoto. Amazon. FocusCamera.
Sony A7sIII in EU at Fotokoch. Calumet DE. WexUK. Park UK.

New Sony A7sIII accessories:
You will also have to preorder the world’s first CFexpress Type A cards at Adorama, BHphoto. Amazon.
And of course the new Sony MRW-G2 CFexpress Type A/SD Memory Card Reader at Adorama and BHphoto.

Here ar a couple of interesting videos with Philip Bloom:

Q&A:

Sony Europe video:

Short film:

Olivier Schmitt shows what you can create with the A7sIII

Sony A7sIII Preorders:
Sony A7sIII in USA at Adorama (up to $400 off with lens). BHphoto. Amazon. FocusCamera.
Sony A7sIII in EU at Fotokoch. Calumet DE. WexUK. Park UK.

New Sony A7sIII accessories:
You will also have to preorder the world’s first CFexpress Type A cards at Adorama, BHphoto. Amazon.
And of course the new Sony MRW-G2 CFexpress Type A/SD Memory Card Reader at Adorama and BHphoto.

After watching and reading a ton of reviews we should focus back on the creative work you can make with the new camera:

And this is the french making off video:

New full Sony A7sIII review by Matti Haapoja: The closest thing to a perfect camera!

Sony A7sIII Preorders:
Sony A7sIII in USA at Adorama (up to $400 off with lens). BHphoto. Amazon. FocusCamera.
Sony A7sIII in EU at Fotokoch. Calumet DE. WexUK. Park UK.

New Sony A7sIII accessories:
You will also have to preorder the world’s first CFexpress Type A cards at Adorama, BHphoto. Amazon.
And of course the new Sony MRW-G2 CFexpress Type A/SD Memory Card Reader at Adorama and BHphoto.

Matti Haapoja just posted the final and full review of the new A7sIII:

There is also a new Hands-on with the Sony a7S III at Dpreview.

And here is a In-Depth Look at the Data Rates: