a7s III is Built for 4K and a Milestone for Sony

a7s III is Built for 4K

Today we learn that the Sony a7s III is built for 4K. After 5 years of development, the a7s III is the best possible camera to deliver 4k. Sony decided to go a different direction than 8K and have launched a new flagship to make their point. Considering the issues 8k cameras are having, it would be hard to argue with Sony’s position.

Camera companies traditionally release new flagships like this camera during the Olympics. The a7s III launch follows the 12-24 and AP collaboration. Both of which would’ve occurred during the now delayed summer games. The press briefing I attended was thick with tech, a laundry list of impressive features. Of those, I think how Sony describes the camera’s intent, the S in the name, is the most relevant. The S stands for

There’s an all-new image sensor (Bionz XR), processor, and OLED viewfinder. The back illuminated full frame 12m sensor has large pixels, a 120p high-frame-rate at 4k. Movies are recorded at 10-bit depth, with 4:2:2 color sample, 15 stops of dynamic range, and 2x the readout speed of the mark II.

That’s a lot of tech, as I said above. What it all means is new creative possibilities with a camera that’ll turn light into day. By limiting the pixels, Sony increased the range and sensitivity. 12MP is just the right amount for 4K. While creatives are looking at this camera for movies, it’ll perform as a still camera too. The body is like the a7rIV and the a9 II with all new parts. The large pixels means more signal and fast readout. The image pipeline can push data and focus with Phase Detection AF using 92% of the sensor.

a7s III is Built for 4K

So the a7s III is built for 4K and Sony listened to their shooters. They’ve elevated the standard of their camera body by hardening it and adding a side-opening, variable-angle monitor. The dual CFxpress Type A slots read the new format and SD UHS-II, UHS-1 cards. The cards have a heat sink structure to keep the camera cool. The slots are configurable for simultaneous recording, relay, and sort. The body dissipates heat.

As soon as Sony sends me a demo, I’ll share the images and my reaction to Sony’s statement on 4K. Also, check Sony Alpha Universe for all the a7s III news; including, demo videos.

The a7s III will retail for ~$3500 and ship in September. Pricing is TBD on the CF Express A card and reader.

Sony a7s II Features

During the press briefing, Sony was most enthusiastic about the all-new sensor, the QXGA viewfinder, and speed. The theme of the launch, as Sony told me is “Best-ever 4k.”  For example, 2x the readout speed of the mark II on the sensor minimizes rolling shutter to a min.

Here are the camera’s main features

Sony a7s II Specs

One could write a white paper or a thesis on the amount of tech Sony is shipping with the a7s III. Here are the highlights

Best-Ever 4k Movie Performance

Sony is not exaggerating the best-ever 4k. The slow motion specs were only previously available on studio cameras.

Sony has delivered a camera for their shooters with some surprises. If you’re looking for 8k, step up to a studio camera or try your luck with their competitors.

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