The AVCHD Format Co-Promoters (the owners of the AVCHD Format) have just released an update to the AVCHD Spec that covers 3D, Progessive and 3D Progressive.

AVCHD 3D

Panasonic started shipping 3D cameras using 'side by side' encoding in 2010 and Sony joined the 3D race in March 2011 with Full HD 3D which means two video channels are used (instead of side by side recording).

The Sony approach uses a 50i or 60i video stream capturing 25 or 30 interlaced frames per second, per side.

AVCHD now supports a true 3D mode, but until we see the new spec we don't know whether the official AVCHD 3D mode will be side-by-side, Full HD or both.

AVCHD Progressive

Panasonic again was first with this format to the camcorder market and now Sony camcorders support 50p and 60p shooting. We have supported Panasonic 1080/50p and 1080/60p since last year but now we'll have a spec to see exactly what is going in with this videos.

AVCHD 3D Progressive

This one is new to us. We will have to see the spec to know what this is all about, but we're guessing it's 3D 50p and 60p support, so that each video channel (one for each eye) is a progressive video stream.

Next Steps

It's good to see AVCHD finally formalise the 3D and Progressive video formats which have been shipping for over 6 months now. We have to go through the paperwork now to get licenced under the new AVCHD Spec, then we will check out how it all works.

Once we have access to the official AVCHD spec we will post another update.