Sony a7s II How To Use Manual page 136

AVC/H.264 codec.
When [ File Format] is set to [AVCHD]
60i/50i: Movies are recorded at approximately 60 fields/sec (for 1080 60i-compatible
devices) or 50 fields/sec (for 1080 50i-compatible devices), in interlaced mode, with Dolby
Digital audio, in AVCHD format.
24p/25p: Movies are recorded at approximately 24 frames/sec (for 1080 60i-compatible
devices) or 25 frames/sec (for 1080 50i-compatible devices), in progressive mode, with
Dolby Digital audio, in AVCHD format.
60p/50p: Movies are recorded at approximately 60 frames/sec (for 1080 60i-compatible
devices) or 50 frames/sec (for 1080 50i-compatible devices), in progressive mode, with
Dolby Digital audio, in AVCHD format.
When [ File Format] is set to [MP4]
Movies shot are recorded in MPEG-4 format, at approximately 60 frames/sec (for 1080 60i-
compatible devices), approximately 50 frames/sec (for 1080 50i-compatible devices),
approximately 30 frames/sec (for 1080 60i-compatible devices) or approximately 25
frames/sec (for 1080 50i-compatible devices), in progressive mode, with AAC audio, MP4
format.
Menu item details
When [ File Format] is set to [XAVC S 4K]
30p 100M/25p 100M:
Records the movies in 3840 × 2160 (30p/25p).
Bit-rate: Approx. 100 Mbps
30p 60M/25p 60M:
Records the movies in 3840 × 2160 (30p/25p).
Bit-rate: Approx. 60 Mbps
24p 100M*:
Records the movies in 3840 × 2160 (24p). This produces a cinema-like atmosphere.
Bit-rate: Approx. 100 Mbps
24p 60M*:
Records the movies in 3840 × 2160 (24p). This produces a cinema-like atmosphere.
Bit-rate: Approx. 60 Mbps
When [ File Format] is set to [XAVC S HD]
60p 50M/50p 50M:
Records the movies in 1920 × 1080 (60p/50p).
Bit-rate: Approx. 50 Mbps
30p 50M/25p 50M:
Records the movies in 1920 × 1080 (30p/25p).