Engadget has tested the S1R and writes:

Is the S1R worth $3,700? If you had asked me this even a month or two ago, I would have said yes. However, Sony’s incredible new 61-megapixel A7R IV has put me in a tight spot here, based on the brief look we had. For $200 less, you get a lot more, including much higher resolution, phase-detect autofocus with incredible AI powered eye detection, and video features on par with the S1R.

Sony simply hasn’t given Panasonic an inch in performance, and has a proven track record with three previous A7R models. It’s a shame, because the S1R is a pretty incredible camera, but like Canon and Nikon, Panasonic is simply getting lapped by Sony in the mirrorless race.

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.

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.

New tests:
Sony FE 35 mm f/1.8 i A7R IV – sample shots at Lenstip.
Sony a7R IV – Who Wants It? Who Needs It? (Kevin Raber on his new website Photopxl).
The New 4thGen Sony A7rIV at 10,000 feet by Patrick Murphy-Racey.
The Sony a7r IV Has Problems That Should Be Fixed in Time, We Hope (ThePhoBlographer).

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.

–

Imaging Resources reviewed their Sony A7rIV image samples and so far are impressed by the image quality. Check out their video:

Tamron 17-28mm f/2.8 FE preorders:
In the USA at BHphoto, Amazon, FocusCamera, BuyDig and Adorama.
In Europe it’s available at Calumet DE, WexUK, Park UK and CameraTools NL.

Here are the new 17-28mm FE tests:
Ongoing review at CameraLabs.
Tamron 17-28mm F2.8 Di III RXD sample gallery (Dpreview).
17-28mm test at Camerastuffreview.
Full review at Mobile01.

Left: Sony a7R IV 60 megapixel photo (at 8:1). Right: Sony a7R IV 240 megapixel PixelShift photo (at 4:1). At 240 megapixels, you can see the vine is fake. I’m shook. I didn’t even notice it was fake in person. pic.twitter.com/oOyXwjxojA

— Tony Northrup (@tonynorthrup) 22. Juli 2019

The 240MP files from the A7rIV are surely going ot be stunning. Still, I wish Sony would implement an in-camera solution to elaborate the files…just like Panasonic does on their S1R! Please Sony work on that!

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.

Sony 35mm f/1.8 FE:
In the USA/CA at Adorama, Amazon, FocusCamera, BHphoto and Henrys.
In EUROPE at Calumet DE, ParkCameras, WexUK, Calumet NL.

—

Popular Photography tested the new Sony lens:

Even when shooting wide open the lens was sharp, and we didn’t notice any ugly onion ring bokeh, which sometimes result from aspherical lens elements, during our time with the lens. The AF is fast enough to capture the action onstage in a dimly lit venue.

Jeff Rojas tested the new Sony 35mm f/1.8 FE lens:

One more review:

Sony FE 35mm f/1.8 Sample Photos (ePhotozine).
Sony FE 35mm F1.8 Sample Images (Photographyblog).

The new 17-28mm FE is now shipping out in China. It will ship out this week in EU and US too:
In the USA at BHphoto, Amazon, FocusCamera, BuyDig and Adorama.
In Europe it’s available at Calumet DE, WexUK, Park UK and CameraTools NL.

Here are some unboxing pics from Fengniao:

Here is also a first look from John Sison:

Tamron 17-35mm F2.8-4 Di OSD gallery updated (Dpreview).

UPDATE: German review by Andy Grabo:

Tamron 17-28mm f/2.8 FE preorders:
In the USA at BHphoto, Amazon, FocusCamera, BuyDig and Adorama.
In Europe it’s available at Calumet DE, WexUK, Park UK and CameraTools NL.