A comparison between a Sony A7s and Nikon D4s, both camera are recently announced and features TOP ISO range up to 409600, however the native ISO sensitivity of Nikon is limited to 25600 on the other hand Sony A7s native ISO sensitivity touches 102400… take a look
Megapixel and Sensor Size: The Sony Alpha 7S features low resolution than Nikon D4S, but due to the larger pixels can collect more light. Furthermore, the photodiode design of the A7s has been revised for 100% output. But Nikon D4s features more resolution compared to Nikon D4S, so you will get large printouts and you can also re-compose /crop your images after shooting.
Advance AF System in D4s: Sony A7s comes with a contrast based AF system with 25 number of total AF points, the Nikon D4S comes with Hybrid AF system (Phase + Contrast) composed of 51 AF points, the phase + contrast AF system quickly acquire the subject into focus and finally the contrast based system fine-tune the sharpness for ensured accuracy.
Better low light performance by Sony A7s- The Sony A7s Standard ISO range is 100 – 102400 and expandable ISO range is 50-409600, but Nikon D4S standard ISO range is limited to 100 – 25600 and expandable ISO range is 50- 409600., the Sony Alpha 7R features more better standard ISO range than Nikon D4s.
Top Continuous shooting speed: Nikon D4S features fast shooting speed compared to Sony Alpha 7S.
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: Nikon D4S Full HD 1080 @ 60 fps, 50 fps, 30 fps, 25 fps and 24 fps. HD 720 @ 60 fps, 50 fps
Supported formats Additionally, simultaneous recording to both memory cards and an external recording device.
Other Video Feature of Nikon D4s
- Multi-area modes enables you to narrow your effective field of view during recording, too, in FX, DX, and 2.7x Crop settings
- offer more versatility during shooting
- Wide Range and Voice Range.
- HDMI port
- 2MP still images can also be recorded simultaneously during video recording.
Display: Sony Alpha 7S features bigger and high resolution display compared to Nikon D4S.
Viewfinder: Nikon D4S features optical / pentaprism viewfinder on the other hand Sony Alpha 7s has EVF, we like optical over digital.
Wireless: Battery Life (CIPA): Nikon D4S battery rating is 3020 shots and other hand Sony Alpha 7S 360 shots. According to CIPA.
Dimensions: Sony Alpha 7S Mark II is smaller than Nikon D4S.
Weight: Sony Alpha 7S lighter than Nikon D4S.
High ISO Test Between Sony A7s vs. Nikon D4S
Verdict: The Sony A7s will give you cleaner low-light Images since it features broad standard ISO range than Nikon D4s, + 1 we also have a option to record 4K video and and higher frame rates, on the other side we have Nikon D4s with advance core specification and a huge line-up of high quality FX format lenses to choose from…. if you are a Nikon FF DSLR user or sports shooter we recommend you to go with Nikon D4s, otherwise go with Sony A7s, since Sony A7s will give you better low-light images with a option to record 4K video.
Buy Sony A7s from Amazon || Buy Nikon D4s from Amazon