Mirrorless / CAMERA REFERENCE

a7S II

Sony

Catalogue announcement:

01 / TECHNICAL RECORD

Specifications

Catalogue specifications. Source: DPReview historical specification record ↗.

Sensor and files

Effective pixels
12 megapixels
Sensor size
Full frame (35.6 x 23.8 mm)
Sensor type
CMOS
Max resolution
4240 x 2832
ISO
Auto, 100-102400 (expands to 50-409600)
Boosted ISO (minimum)
50
Boosted ISO (maximum)
409600
Uncompressed format
RAW

Lens and focus

Lens mount
Sony E
Number of focus points
169
Manual focus
Yes
Image stabilization
Sensor-shift
Image stabilization notes
5-axis

Exposure and shooting

Minimum shutter speed
30 sec
Maximum shutter speed
1/8000 sec
Continuous drive
5.0 fps
Exposure compensation
±5 (at 1/3 EV, 1/2 EV steps)
Metering modes
MultiCenter-weightedSpot
Aperture priority
Yes
Shutter priority
Yes
Built-in flash
No
External flash
Yes (via Multi Interface shoe)
Timelapse recording
No

Video and audio

Resolutions
4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps])
Format
MPEG-4, AVCHD, XAVC S
Microphone
Stereo
Microphone port
Yes
Headphone port
Yes
Speaker
Mono

Viewfinder and screen

Viewfinder type
Electronic
Viewfinder coverage
100%
Viewfinder magnification
0.78×
Screen size
3″
Screen dots
1,228,800
Articulated LCD
Tilting
Touch screen
No

Body and connections

Storage types
SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Battery description
NP-FW50 lithium-ion battery and charger
Battery Life (CIPA)
370
Weight (inc. batteries)
627 g (1.38 lb / 22.12 oz)
Dimensions
127 x 96 x 60 mm (5 x 3.78 x 2.36″)
Environmentally sealed
Yes
USB
USB 2.0 (480 Mbit/sec)
HDMI
Yes (micro-HDMI port with 4:2:2 8-bit 4K or 1080 video output)
Wireless
Built-In
Remote control
Yes (wired or smartphone)

02 / INDEPENDENT COVERAGE

Reviews and field reports

03 / PROVENANCE

Sources and dates

A catalogue year identifies the year held in the source dataset. Announcement dates and retail months are labelled separately. Specifications can vary by region, firmware and recording mode; use the linked manufacturer documentation for those conditions.

Archive updated 2026-10-04. Archive coverage and dataset credits →