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Sony Alpha A7s

Sony Alpha A7s

A7s Specifications:


Sensitivity: 100-102400 (Extended Mode: Auto, 50-409600)

Lens Mount: Sony E-Mount

Camera Format: Full-Frame

Pixels: 12.4 Megapixel

Max Resolution: 12MP: 4240 x 2832

Aspect Ratio: 3:2, 4:3

Sensor Type / Size: CMOS, 35.8 x 23.9 mm

File FormatsStill Images: JPEG, RAW

Movies: MP4, MPEG-4 AVC/H.264

Audio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM

Bit Depth:14-bit

Dust Reduction System

Memory Card Type: SD, SDHC, SDXC, Memory Stick PRO Duo (High Speed), Memory Stick PRO HG-Duo, Memory Stick XC-HG DuoAV Recording Resolution1920 x 1080: 60 fps, 30 fps, 24 fps

1280 x 720: 120 fps

1440 x 1080: 30 fps

640 x 480: 30 fps

Video FormatHigh Definition

1920 x 1080p / 60 fps (50Mbps)

1920 x 1080p / 30 fps (50Mbps)

1920 x 1080p / 24 fps (50Mbps)

High Definition

1280 x 720p / 120 fps (50Mbps) (50Mbps)

High Definition

AVCHD

1920 x 1080p / 60 fps (28Mbps)

1920 x 1080i / 60 fps (24Mbps)

1920 x 1080i / 60 fps (17Mbps)

High Definition

AVCHD

1920 x 1080p / 24 fps (24Mbps)

1920 x 1080p / 24 fps (17Mbps)

High Definition

MP4

1440 x 1080p / 30 fps (12Mbps)

Standard Definition

MP4

640 x 480p / 30 fps (3Mbps)

Aspect Ratio: 4:3, 16:9

Video Clip Length: 30 min.

Audio Recording: Built-in Mic: With Video, Stereo, Optional External Mic: With VideoFocus Control

Focus Type:: Auto & Manual

Focus Mode: Continuous-servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)

Autofocus Points: Contrast Detection: 25Viewfinder/Display

Viewfinder Type: Electronic


Articles & Reviews:


Carbon Studios

Moonlight | Sony A7s ISO test

http://vimeo.com/105690274


EOSHD AND ANDREW REID

Evolving Sony A7S Review (Part 1)

http://www.eoshd.com/2014/07/evolving-sony-a7s-review/

Evolving Sony A7S Review (Part 2)

http://www.eoshd.com/2014/10/sony-a7s-review-part-2-conclusion/


a7S Noise and Color comparison / Espionage Films

http://vimeo.com/104329851


Exposing and Using S-Log2 on the Sony A7s. Part One: Gamma and Exposure.

http://www.xdcam-user.com/2014/08/exposing-and-using-slog2-on-the-sony-a7s-part-one-gamma-and-exposure/


How to Expose, Monitor and Grade S-Log2 Footage on the Sony A7s

https://www.youtube.com/watch?v=jRI40Gl4I8g#t=3462


A7sii - B Camera


Both the A7sii and the FS7 share the same lenses in my kit, and both record a codec labeled XAVC, but their versions of XAVC differs greatly.

The A7s uses a S “simplified” toolset, at 4:2:0 8 bits (in camera), while the FS7 uses the full toolset at 4:2:2 10 bits.


I plan to use the A7sii in very low light conditions, a second framing for interviews, underwater, car mounts, inconspicuous camera in public places and as a still camera.  When shooting 4K, I'll add an external recorder.