Originally Posted by Dan Keaton
The advantage to using the Flash XDR or the nanoFlash is in being able to record very high quality 4:2:2 images, using the full raster (1920 x 1080) that an EX1/EX3 produces but is not able to record.
The Sony EX1/EX3 record 4:2:0 images at 35 Mbps.
The difference between 4:2:0 and 4:2:2 can be dramatic, especially for film-out and other situations where the highest quality output is expected.
Another advantage is that with 100 Mbps Long-GOP, the codec can handle extremely detailed images and even lots of motion in the image or the camera. At 35 Mbps, there are cases where image artifacts can occur.
The Flash XDR and nanoFlash record 4:2:2 at your choice of 50 or 100 Mbps (Long-GOP), and 100, 140 and 160 Mbps (I-Frame Only - Intraframe Compression). We also offer 4:2:0 at 35 Mbps.
And we record to very low-cost CompactFlash Cards. A Kingston 32 GB Elite Pro CompactFlash card is currently under $60 at B&H.
(Disclaimer: I am the Director of Sales and Marketing for Convergent Design.)
I don't doubt the superiority of your system for realizing the maximal potential of the EX1/EX3.
Just can't afford it. If I ever hit the lotto......
As an aside and I should look this up in the operator's manual - I assume one can record from SDI at the same time the camera is writing to the SxS or SDHC cards?