4:2:2 while monitoring?

M

mraaron895

Well-known member
When connecting my FS100 to my 37'' LED Panasonic am i viewing a 4:2:2 image?

The reason I ask is because I was shooting and monitoring some test footage today on my Panasonic. Once i brought the footage into premiere I could notice a difference between what I was monitoring and what was recorded.
And to clarify I also viewed the footage on the same monitor when editing it.

Thank you,

Aaron
 
Sharpness and the color rendition seemed better. I guess I answered my own question, but I was curious if someone with the technical knowledge knew the answer.
 
mraaron895 said:
When connecting my FS100 to my 37'' LED Panasonic am i viewing a 4:2:2 image?
Click to expand...

Yes, the FS100 outputs 4:2:2 and records AVCHD at 4:2:0.

However the difference isn't necessarily very noticeable, as the FS100's AVCHD is very good. See:

http://crookedpathfilms.com/blog/2011/12/01/fs100-atomos-ninja-tests/

Note that in this test:

http://prepostconsulting.com/en/english-atomos-ninja-sony-fs100-codec-comparison-test/

the tester found AVCHD to be less sharp, but subsequently found that the poor quality from the AVCHD was due to an ingestion problem causing interlacing artifacts. So I wonder if maybe you're seeing a similar issue?
 
Thanks for the responses everyone. I should clarify that the image I got off my cards (AVCHD) looks superb! But the monitored 4:2:2 image looked much cleaner. I have CS5 so everything plays nicely together so it wasn't a codec or resolution issue .

However the reason I asked this question in the first place was because I've read that only certain recorders can record the 4:2:2 image, such as the Ninja by pulldown method. I was simply wondering if the communication between my camera and monitor automatiaclly do this to achieve a 4:2:2 image.

Thank again,

Aaron
 
There's no "pulldown" for 4:2:2. 4:2:2 just means there's more colour detail. Your monitor ought to display it no problem.

Are you using the same monitor in Premiere? If you are, and it looks worse than the live signal, then I really would suspect that there's a settings mismatch... like recording progressive but editing interlaced, or something.

Do check out the second link I posted above. That guy was using Premiere too, and he still got messed up somehow.
 
Thats true, but 4:2:2 has nothing to do with frame rate. 4:2:2 is the Chroma Subsampling Ratio.

Also are you viewing the shots in Premier on your Panasonic LED? If your viewing it on a computer monitor, then thats also another reason the footage looks different. TVs such as LEDs display colorspace in r.709 and your monitor is probably something near sRGB, so your going to get a different looking image on different displays.
 
Yes I'm viewing the footage thru premiere on my Panasonic. I also have an older 28in hannsG LCD monitor which is terribly inaccurate with color and contrast reproduction. I bought an led tv to have a more accurate representation of what my final output would be.

I should stress again that the footage looks awesome both from the avchd encode and the live feed. My original question should have been does the tv automatically apply pull down via hdmi so that I'm viewing a 4:2:2 24P Image.
 
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