Hello,
Is anyone else having issues with their external data recorders when recording video from the HDSDI port on the Panasonic AF100? I am when recording ProresLT with my PIX240. I have contacted the guys at SOUNDDEVICES, though am still waiting their response. In the meantime, I wanted to see if this problem was common.
I am having quality issues with recording a 1080 25p stream from an Panasonic AF101 as Prores LT.
I two frame video is downloadable here for your interest:
http://www.tomdavid.com.au/downloads/Boy_in_street.mov
The Panasonic AF101 outputs a 1080i signal from its HDSDI port. The PIX240 correctly recognises this as 1080i as its input.
However I want to record a 1080P image with the PIX240, as I am shooting 1080p on the AF101.
I am recording in-camera: AVCHD 1080P 25fps
I am recording on the PIX240 via SDI: Prores LT 1080psf25
I am recording in this PSF format as my understanding is that to receive a 1080i signal via an SDI connection that is 1080p at its source (the AF101), I must interpret this as 1080psf25 to record true ProresLT 1080p (at the PIX240).
However as you can see via my attached video, and flicking back and forwards over the two frames, the AVCHD footage (24mbits) and much clearer and noise / artefact free than the Prores LT (100 mbit) footage. (I have checked, I have not got the source files muddled up – the Pix is definitely is recording more artefacts in the image). Particularly look at the child’s face and also asphalt artefacts behind him.
Can anyone please offer some feedback, as the whole reasoning behind purchasing the PIX was to bypass the in-camera recording and make the most of the HDSDI 8bit data stream. However currently it seems that the PIX240 image at Prores LT has more artefacts than the in-camera recording. Not expected!
In fact, when I push and pull the picture to extremes, I am noticing no difference in latitude, noise etc, except to say that the in-camera AVCHD is superior to the PIX240 recording.
Please help! I hope that I am doing something wrong.
I have the most recent v2 firmware update installed on the pix.
Regards,
Tom
____________________________________
Cinematography - Editing - Motion Graphics
M +61 421 176 251
E tmd@tomdavid.com.au
W
http://www.tomdavid.com.au
Examples of work found at
http://vimeo.com/tomdavid/albums

Cheers,
Tom
Camera Operator - Editor - Motion Graphics
(http://www.tomdavid.com.au)
