Firstly if you stick to the rules you can import Sony’s XAVC L footage into FCPX v10.2 via an FS7.
You can’t import directly into FCPX 10.2 via Sony’s FS7 4K XAVC L via FCPX 10.2 or you get a green screen like this. (above), you need to use Catalyst Browse/Prepare or Edit Ready.
You also can’t import XAVC HD (Long GOP) footage from Sonys PXW-X70..all you get is audio and small JPEG images. (above). Once again you need Sony’s Catalyst Browse (FREE).
You can import XAVC Long GOP HD footage from your FS7 as you can see above.
XAVC I frame has always available to FCPX both on HD and 4K via your FS7
XAVC I frame 3840 x 2160 50p 500Mbps via Sony’s XQD G series card.
Both Peter from FCP.Co and myself worked on this last evening into the small hours.
Here are the facts to date when importing Sony’s XAVC footage into FCPX 10.2
XAVC S seen in Sonys A7s footage has always been supported in FCPX for a while now.
XAVC I seen in Sonys FS7 has also been supported both HD and 4K footage.
XAVC L seen in the Sony FS7 is only supported up to HD, 4K footage is not yet supported.
XAVC HD (Long GOP) as seen in the Sony X70 is not yet supported (HD only).
There is no need to download the PDZK-LT2 plugin if you are working with FCPX 10.2.
Sonys Catalyst Prepare does not transcode 4K L GOP footage as there are no presets for 4K PreRes (This may change)
Edit Ready is the best overall solution to transcode both HD and 4K Sony Long GOP footage to PreRes.
It’s not advisable to mix and match I frame and Long GOP footage on the same card.
I am sure Apple and Sony are working on a fix for this lets hope a solution will be available sooner rather than later.