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Sony A7S III

Sony A7S III

Sony · Mirrorless Body · 2020

$3998 new → from $1354 used → See price on Amazon →

Used price as of Sep 22, 2026 · active listings

Synthesized from 22 reviewer sources · Analysis as of Sep 9, 2026 (13 days ago)

What do reviewers say about the Sony A7S III?

As of September 2026, among the 22 reviews we compiled, video capability drew the most discussion: 245 claims from 21 of them, which we read as 53% positive, 31% neutral, 16% negative.

Reviewers are most positive about autofocus (72% positive, 14% neutral, 14% negative across 43 claims). The most criticism lands on handling: 51% positive, 17% neutral, 32% negative across 63 claims. Coverage of mount compatibility is mostly neutral: 43% positive, 52% neutral, 5% negative across 63 claims.

What are the Sony A7S III specifications?

Weight With Battery G699 g (1 lb 8.7 oz) (including battery pack, SDXC memory card)
Dimensions Mm128.9 × 96.9 × 80.8 mm 128.9 × 96.9 × 69.7 mm (from grip to monitor) 5 1/8 × 3 7/8 × 3 1/4 in. 5 1/8 × 3 7/8 × 2 3/4 in. (from grip to monitor)
MountSony E-mount lens
Sensor Format35 mm full frame (35.6 mm × 23.8 mm), CMOS image sensor
Resolution MPApprox. 12 100 000 pixels
Raw FormatsJPEG (compliant with DCF Ver. 2.0, Exif Ver. 2.32, and MPF Baseline), HEIF (MPEG-A MIAF compliant), RAW (Sony ARW 5.0 format compliant)
Video CodecsXAVC Ver2.1: MP4 format compliant | Video: MPEG-H HEVC/H.265 | Audio: LPCM 2ch (48 kHz 16 bit), LPCM 4ch (48 kHz 24 bit) *1 , LPCM 2ch (48 kHz 24 bit) *1 , MPEG-4 AAC-LC 2ch *2
USBSuperSpeed USB 5Gbps (USB 3.2) | Compatible with USB Power Delivery
HDMIHDMI type A jack
Audio IoØ 3.5 mm Stereo mini jack
Weight699 g
Materialmagnesium alloy
Evf MagnificationApprox. 0.90× with 50 mm lens at infinity, –1 m –1

specs: manufacturer · wikidata

What do reviewers praise and criticize?

Video Capability
131 pos · 76 neu · 38 neg
“But the line really found its feet with the A7S II in 2015, which was capable of recording 4K video internally, and so earned a loyal following among filmmakers for its compact size, excellent footage and remarkable low-light capability.” — Amateur Photographer
EVF & LCD
64 pos · 20 neu · 16 neg
“Now I know some of you prefer vertically-tilting screens, but this is a camera primarily aimed at videographers who will welcome the flexibility of a screen that can face-forward without being blocked by the hotshoe or viewfinder.” — Cameralabs (Gordon Laing)
Sensor Performance
49 pos · 24 neu · 11 neg
“The larger-but-fewer pixels on the sensor not only gives huge benefits at high ISO but is also read much faster, which hugely reduces the dreaded rolling shutter that blights many mirrorless cameras.” — Digital Camera World
Stabilization
41 pos · 16 neu · 12 neg
“The in-body image stabilization was quite good.” — Fstoppers
Handling
32 pos · 11 neu · 20 neg
“Because of the ergonomics of this camera, I believe that it's actually informed the way that I shoot using it.” — Davey Gravy
Mount Compatibility
27 pos · 33 neu · 3 neg
“The Sony A7S3 uses Sony's E-mount, so it shares lenses with the FX6.” — Western Approaches
Burst & Buffer
28 pos · 20 neu · 12 neg
“here in the shot uh we have this set up right now for 120 fps so we're gonna get a little nice slow motion there's not too much motion granted but let's put a touch focus tracker on the flower just so that we keep it in focus as the wind blows now even better than that we're gonna roll” — B&H Photo Video Pro Audio

More detail — 8 additional axes
Image Quality
33 pos · 17 neu · 8 neg
“You have to be in the dedicated photo or video option on the dial to set a custom white balance.” — Gerald Undone
Autofocus
31 pos · 6 neu · 6 neg
Battery Life
22 pos · 5 neu · 4 neg
“kill seven z batteries in a day i don't understand how gonna make a documentary about this but yeah battery life for me is perfect and if we compare it to the a6500 one of these z batteries will last as long as three of these then i like the fact that the movie mode is right next to the” — DreamDuo Films
Price & Value
12 pos · 10 neu · 2 neg
“And the price point, while still expensive for a camera that's 5 6 years old, is very accessible for people who are, you know, just getting out of school or something like that.” — Remsy Atassi
Connectivity
9 pos · 5 neu · 1 neg
“For connectivity, they both have full-size HDMI outputs, a USBC and micro USB for data transfer and power delivery, a microphone input, and headphone output.” — T. J. Audio
Dimensions
9 pos · 2 neu · 2 neg
Build Quality
7 pos · 0 neu · 3 neg
Weight & Portability
3 pos · 2 neu · 1 neg
“video specs it is noticeably thicker than a7 3 for example but it only weighs 700 grams so it is still a very portable camera the build quality is generally very good it uses a magnesium frame of course and it feels very solid overall fortunately sony has also switched to proper port doors in gen 4…” — The Hybrid Shooter

What does a used Sony A7S III cost?

open_box$2289
pre_owned$1354

Prices as of Sep 22, 2026 — lowest active listing per condition.

Which reviews is this based on? (22)

Every claim above traces to these original reviews. We don't write opinions — we synthesize theirs.

📹 Pro Reviews (22)

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More on the Sony A7S III: Where reviewers split · Specs, answered · Use-case fit
Reviewer takes: autofocus body · battery life · build · burst buffer · connectivity · dimensions · evf lcd · generation context · handling · image quality · mount compat · price · sensor performance · stabilization · video capability