Shawn C. Steiner shared his thoughts on the new Sony A7rIV:

I’m most definitely upgrading my a7R III to the new a7R IV—the extra resolution and modified body are enough to convince me. What about you? Are you going to upgrade your camera system or are you thinking about your first mirrorless? Be sure to let us know your thoughts in the Comments, below, and tell us if you want to see a longer review, which would include video performance, Pixel Shift, and many of other new features.

ePhotozine published the full A7rIV review:

If you’re looking for a high-resolution full-frame camera, then the Sony Alpha A7R IV gives high resolution 61mp images, with ease, and a high level of success. You don’t need to use a tripod (unless you want to), you don’t need to use a self-timer, or worry about shutter shock, instead you can simply concentrate on your photography, framing, and composition, and shoot away. The camera has a reliable focus system, and gives good JPEG results straight from the camera. If you pair the camera with a high quality zoom lens, or a prime lens, then you can quickly get great results. 

Sony A7rIV and new accessories:
Sony A7rIV in USA/CA at BHphoto, Adorama, FocusCamera, Amazon, Henrys.
Sony A7rIV in EU at Calumet DE, ParkUK, WexUK, Calumet NL.
Sony A7rIV in Asia at Sony Japan. Sony Australia.
Sony VG-C4EM grip in USA at BHphoto, Adorama, Amazon, FocusCamera, ParkUK, WexUK.
ECM-B1M Digital Audio Shotgun Microphone at BHphoto, Park UK.
XLR-K3M Mic at BHphoto, Park UK.

E 16-55mm F2.8 G at Amazon, BHphoto, Adorama, FocusCamera. In EU at Calumet DE, Park UK, WexUK.

Marc Alhadeff tested the new Sony E 16-55mm F2.8 G lens. His conclusion:

—

The new Sony 16-55 F2.8 G (1300 euros) is the pro zoom for APSC we were expecting for years. Results are superb and on on par with best E mount prime lenses

This could be your high quality lens for weddings, travel, portraits, studio shooting

Pros

• Excellent Sharpness at all focal lengths
• Consistent sharpness from centre to corners
• Very nice and soft Background blur
• Excellent color rendition
• Very good build construction
• Easy to rotate zoom with enough dampening for a smooth zooming
• Ergonomics : focus hold button , AF/MF switch

Average

• Size : the lens is relatively big in APSC standard but this allow to get corners as sharp as the centre
• Bokeh balls : well rounded but some onions rings and fringing can be observed in some situations
• Distorsion on the wide end is big and vignetting is visible.
  • This improve at 35 and 55 but distorsion is still visible.
  • This will be automatically corrected in a future Lightroom Lens profile
• Some chromatic aberrations (low level)
• Resistance to flare is only good

Cons

• Pricy ( as pricy as a Sony 24-105 F4 G  full frame)

The Sony 16-55mm F2.8 G is definitively the Pro Zoom for Sony APSC cameras and would have deserved a GM label.

Globally it is much better than any other Sony APSC zoom currently available

• Sony E PZ 18-105mm F4 G OSS (450 euros) : more targeted at video with is power zoom
• Sony E 16-70mm F4 Carl Zeiss Vario Tessar T* OSS : (900 euros) , this was the best quality zoom available but the new 16-55 F2.8 has better aperture, better IQ without a doubt
• Sony E 18-135mm F3.5-5.6 OSS (650 euros) : very good zoom but does not achieve the excellence we find on a prime or on the new 16-55mm F2.8 G , a good choice if you want the biggest zoom possible while retaining very good image quality

Highly Recommended

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E 16-55mm F2.8 G at Amazon, BHphoto, Adorama, FocusCamera. In EU at Calumet DE, Park UK, WexUK.

His conclusion:

1. The Siemens star shows the differences most clearly. As the resolutions go up, the false color decreases, and the star is resolved nearer the center.
2. For the text, that is also true, but the resolution differences are much more subtle. Except for one paragraph with a lot of false color in the a7III shot, the false color is about the same as the a7RIV. So is sharpness. The a7S shows a lot of false color, and it is not limited to just one paragraph.
3. There are three checkerboard patterns of varying fineness to the right of the Macbeth color checker. There is negligible false color in those, even with the a7S. At this resolution, none of the cameras can resolve the checkerboard immediately adjacent to the Macbeth chart, which is the finest. All of the cameras resolve the checkerboard on the right of the set, which is the coarsest, and it looks about as sharp in all four images.
4. The focusing target between the checkerboards is slightly more poorly resolved with the a7S, but the other three cameras do about the same job with it.
5. The rest of the image look the same with all the cameras, except for color differences due to a combination of the camera’s CFA spectra and the Adobe Color profiles for each camera.

The AI feature capabilities of the new Luminar 4 (full details here) will allow you to create images with FAKE Milky way sky in seconds :)

Preorder now the fake AI photo editor :)

Fujiablog (Google translation here) published  the first review of the new Voigtlander 50mm f/2.0 APO Lanthar lens. Specs might not impress but the performance surely does. Here is the google translated conclusion:

If you limit the performance of a lens to things such as resolution, sharpness, and good omission, it is a lens that has a monster-like performance. In this blog, various lenses have been tested, but Voigtlander APO-LANTHAR 50mm F2 Aspherical E-mount may be the best performing lens ever.

Chromatic aberration was also corrected well, and purple fringing was rare.

I think that the design is where the taste will be divided (I personally feel that …), but there may be a wolf-like goodness with a sheepskin (especially the hood is just a cylinder) I think it ’s not good).

Reasonable price for the performance is also a merit (50mm ultra high performance lens is often over 300,000 yen), and it is also recommended for users that that manufacturer and that manufacturer are too expensive to buy .

I looked through the viewfinder and focused on it. There is no lens suitable for this combination with SONY α7rIV! I felt that.

The lens is yet not available for preorder outside Japan…

Three videos long review of the  new A7rIV by Maarten Heilbron.

Sony A7rIV and new accessories:
Sony A7rIV in USA/CA at BHphoto, Adorama, FocusCamera, Amazon, BuyDig, Henrys.
Sony A7rIV in EU at Calumet DE, ParkUK, WexUK, Calumet NL.
Sony A7rIV in Asia at Sony Japan. Sony Australia.
Sony VG-C4EM grip in USA at BHphoto, Adorama, Amazon, FocusCamera, BuyDig, ParkUK, WexUK.
ECM-B1M Digital Audio Shotgun Microphone at BHphoto, Adorama, Amazon, FocusCamera, BuyDig, Park UK.
XLR-K3M Mic at BHphoto, Adorama, Amazon, FocusCamera, BuyDig, Park UK.

Fengniao shared those nice images of the HUGE  new Sigma 35mm f/1.2 FE lens.

New Sigma FE lenses:
Sigma 35mm f/1.2 FE at Adorama, BHphoto, Amazon, FocusCamera, Henrys. In EU at Calumet DE, ParkUK, WexUK.
Sigma 14-24mm f/2.8 FE at Adorama, BHphoto, Amazon, FocusCamera, Henrys. In EU at Calumet DE, ParkUK, WexUK.
Sigma 45mm f/2.8 FE at Adorama, BHphoto, Amazon, FocusCamera, Henrys. In EU at Calumet DE, ParkUK, WexUK.