The A7s is not a successor of A7, but its a different breed of camera that have amazing low-light capability (can shoot almost in dark) and records 4K video with 100% pixel readout…
Sony Alpha 7S vs. Sony Alpha 7 Specification Comparison Table.
Megapixel and Sensor Size: The Sony Alpha 7 features low resolution than Sony Alpha 7S, but due to the larger pixels can collect more light. Furthermore, the photodiode design of the A7s has been revised for 100% output.
But Sony Alpha 7 more resolution compared to Sony Alpha 7S, so you will get large printouts and you can also re-compose /crop your images after shooting.
Advance AF system in A7: Sony A7 Fast Hybrid AF system uses both a 117-point phase-detection system and 39-point contrast-detection system; hence Sony A7 will do more quick and precise AF than Sony Alpha 7S.
Better low light performance in A7s – The Sony A7s Standard ISO range is 100 – 102400 and expandable ISO range is 50-409600, but Sony Alpha 7 standard ISO range is …… and expandable ISO range ……, the Sony Alpha 7 features more ISO range ( standard + expandable ) hence you get better low-light images at HIGH ISO range.
Better video mode in A7s: Sony Alpha 7S can capture 4K video at QFHD (3840 x 2160) to a external recorder + Sony A7s also has a option to record full HD (1920 x 1080) at 60p, 60i, 30p, and 24p
Supported formats addition to the conventional AVCHD and MP4 formats
Other Video Feature of Sony A7S
- external recorder via HDMI connection
- APS-C crop mode
- HD 720p video can be recorded at 120 fps for a 5x slow-motion effect
- high-quality XAVC S format
- a7S incorporates S-Log2 gamma
- expand the effective dynamic range by 1300% to increase detail in both shadows and highlights
- full HD and 4K base band HDMI output
- XLR Adapter Microphone
video mode: Sony A7 Features full HD video recording @ 60 fps, 24 fps frame rate. HD video recording @ 30 fps frame rate.
Supported formats Sony A7 supperts standard recoding format cinematic 24p, while MP4 codec.
Other Video Feature of Sony A7
- external recording
- via an HDMI
- AVCHD codec
- super-smooth 60p
- easier upload to the web
Display: Sony A7S features bigger and high resolution display compared to Sony Alpha 7.
Sony A7S features tilting display on the other hand Sony Alpha 7 have fixed display so we get more flexibility while composing our shot with Sony A7S.
Battery Life (CIPA): Sony Alpha 7S battery rating is 360 shots and other hand Sony A7 340 shots. According to CIPA.
Weight: Sony A7 lighter than Sony Alpha 7S.
High ISO Test Between Sony A7s vs. Sony A7
Verdict: We highly recommend you to buy Sony A7s camera, however if you are a sports shooter go for Sony A7.
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