Slashcam test reveals Sony A7S 1080/60p softer than 24p mode

a7s-metabones

Slashcam have chart tested the A7S internal recording modes and the results for the regular frame rates 24-30p are incredibly positive.

However it seems that in 60p the camera cannot utilise the full pixel readout of the sensor, which results in a worse image with moire and aliasing.

You can read my take on this below or head over to Slashcam to read the original piece (Google translated)

Read moreSlashcam test reveals Sony A7S 1080/60p softer than 24p mode

Canon 5D Mark III raw video crop mode performance

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Crop mode is covered in my 106 page EOSHD 5D Mark III Raw Shooter’s Guide on 5D Mark III raw video here

Above – EOSHD “raw rig” above is comprised of the Lanparte BMCC cage with 5D Mark III and LanParte follow focus / carbon matte box from HDVideoShop

Slashcam and I set out to test the 5D Mark III’s crop mode as precisely as possible using a chart – it is possible thanks to 100% accurate framing in crop mode with the black & white Magic Lantern live-view preview mode. Further optimisations to the buffer handling by Alex at Magic Lantern aims to make higher resolutions such as 2560 x 960 at 98MB/s sustainable for longer or even continuous.

Read moreCanon 5D Mark III raw video crop mode performance

Classified no longer – how the Nikon D800’s 36MP sensor line-skips for 1080p

http://vimeo.com/39341733

Above: a short Nikon D800 full 1080p example – click through to the Vimeo page here to download the original D800 file

Nikon’s people say their downsampling technique for the D800’s video mode is classified info. So Falk Lumo has gone and found out for himself, with a great technical analysis of the Nikon D800 and how it obtains 1080p video from the huge 36MP Sony sensor inside.

Read moreClassified no longer – how the Nikon D800’s 36MP sensor line-skips for 1080p