Philip Bloom: The Sony A7S III has “Dual ISO”


Sony A7sIII preorder at Adorama. BHphoto. Amazon. FocusCamera. Fotokoch. Calumet DE. WexUK. Park UK.

Philip Bloom confirms the As7III has “Dual ISO”:

And Photographyblog posted the full Sony A7sIII review concluding:

All things considered, the Sony A7S III is the most capable hybrid 4K video camera available today. Crucially for a pro tool, the Alpha 7S III is tough, lightweight and comfortable, its controls are exactly where you want them to be and it completes the job reliably with no performance drawbacks in any scenarios, especially low light.

Regarding features and image quality, the decision to retain the low 12.1MP resolution but on a new back-illuminated sensor has paid off for video and low light shooters.

Those 4K video frame rates are unmatched, as well as the 240fps slow motion Full HD video mode. You also get the best colours, dynamic range and control over noise that we have seen from the Sony A7 range yet.

Overall, Sony has been refreshingly single-minded on delivering a product that truly delivers in real world experience instead of flouting hollow headline grabbing numbers. Yes it’s ‘only’ 4K. Yes, it ‘only’ has 12.1MP. But within those parameters, you’ll be hard pressed to find a better camera than the Sony Alpha 7S III.

Sony A7sIII preorder at Adorama. BHphoto. Amazon. FocusCamera. Fotokoch. Calumet DE. WexUK. Park UK.

New Viltrox AF 23mm f/1.4 E Lens reviewed at SonyAlphaBlog: “excellent sharpness in the centre”

The new 23mm f/1.4 APS-C E-mount lens at BHphoto and the worldwide Viltroxstore.

SonyAlphaBlog tested the new Viltrox AF 23mm f/1.4 E Lens and concluded:

The Viltrox 23mm F1.4 (285 euros) is a very good AF lens for Sony APSC cameras. 23mm being the equivalent of a 35mm lens on full frame , this is a very useful and common focal length for street photography or half body portrait.

The main selling arguments of this lens are

  • its excellent sharpness in the centre combined with fast aperture which give you a nice blurry background for portrait
  • its AF (fast and efficient) and clickless aperture ring for video

However

  • corners are quite soft at large aperture and you need to close to F4/F5.6 for best results on the entire field for street / landscape, so don’t expect to consistent sharpness in low light
  • The lens also suffer from heavy Chromatic aberrations even whith aperture closed down, so you will need to correct those in post prod

Compared to the Sony E 24mm F1.8 Zeiss Sonnar, the Viltrox is a bargain

Pros

  • Very good sharpness in the centre wide open at f1.4 and excellent as of F2
  • Excellent sharpness across the whole frame at F5.6 and F8
  • Fast and efficient AF , eye AF working very well
  • Very good build quality
  • Clickless aperture ring for video
  • Reasonable price for a lens with AF
  • Good bokeh balls and background blur (although it could be a little bit more softer)
  • Good color rendition
  • Lens can be upgraded via USB port (and Viltrox do regularly upgrade their lenses)

Average

  • Vignetting up to F4
  • AF not fully silent in video
  • Moderate distorsion
  • Resistance to flare could be better

Cons

  • Heavy CA
  • Corners soft up to F2.8
  • On A6000 only : Some AF issues in video

Recommended as 35mm equivalent lens on Sony APSC cameras

The new 23mm f/1.4 APS-C E-mount lens at BHphoto and the worldwide Viltroxstore.