Some questions about the O7Q

F

Fader8

Well-known member
Hi I'm currently testing my new O7Q

Here some questions:

1) I've never worke with DPX files, what are they for? Whats the benefit on recording DPX?

2) In the playback menu you can comment, add markers, rate good or bad etc. --> Where will this be saved? Couldn't find it in the Premiere Metadata...

3) when working with Premiere, is there a way, that when importing Clips, they stay in SLOG look. Mine look already quite graded (same with Photoshop when you open a singel DNG.

4) Concerning the Naming: you can set up Scene, Take etc. --> where can this be seen in Post?

5) Has any of you made experience using the AVCHD as proxy files for roundtripping?

Thanks for helping
 
1) I've never worke with DPX files, what are they for? Whats the benefit on recording DPX?

They're really high quality, but HUGE files. Not used very often.

2) In the playback menu you can comment, add markers, rate good or bad etc. --> Where will this be saved? Couldn't find it in the Premiere Metadata...

Not many programs read it (at least yet) so it's not that useful as of now.

5) Has any of you made experience using the AVCHD as proxy files for roundtripping?

We do edits on location with the AVCHD files but there's no easy way of using the same files as proxy (I believe they even might have difference of 1 or 2 frames in lenght, not sure though). This has been discussed a few times but no real answer...
 
Fader8 said:
Hi I'm currently testing my new O7Q

Here some questions:

1) I've never worke with DPX files, what are they for? Whats the benefit on recording DPX?

2) In the playback menu you can comment, add markers, rate good or bad etc. --> Where will this be saved? Couldn't find it in the Premiere Metadata...

3) when working with Premiere, is there a way, that when importing Clips, they stay in SLOG look. Mine look already quite graded (same with Photoshop when you open a singel DNG.

4) Concerning the Naming: you can set up Scene, Take etc. --> where can this be seen in Post?

5) Has any of you made experience using the AVCHD as proxy files for roundtripping?

Thanks for helping
Click to expand...
I'm not a Premiere guy, so I can only give some superficial answers. For more in-depth responses you may wish to contact our Support Desk at cdsupport@convergent-design.com.

1 - DPX files
These are uncompressed 4:4:4 video files, available in 2K & HD and 12-bit or 10-bit. Zero compression means you have all the info possible, but it also means huge files. Good for commercial and green screen work. Ideal for someone working in 4:4:4.

2- File markers.
These are fully supported in FCP-X and Supported to a lesser degree in FCP-7. There is a way to import that basic FCP-7 support to Premiere. Ask our engineers if you are interested.

3 - Premiere in S-Log
It should be possible if you follow the appropriate path. Consult our support desk.

4 - File naming
I don't know if Premiere supports this or not.

5 - AVC for proxy
Clips are always a few frames longer in AVC. That's a camera thing (and not just limited to Sony). But timecode matches and you should be able to line up your shots.
 
Thanks for the answer.

And where is the difference between cinema DNG an DPX? Isn't DNG 4:4:4 as well?

Cheers
 
There's many differences but the basics are that Cinema DNG are RAW files and DPX are not. RAW gives you a bit more latitude to adjust your shots in post as some attributes haven't been baked in in the debayering process. DPX files, while very high-quality, have been debayered and therefore you lose some capabilities there.

As DNG is still RAW, the 4:4:4 stat doesn't apply... RAW files are converted to a color space until the debayering process, as far as I understand.

Again, there are lots of technical differences, but that's the gist as far as my knowledge goes.

I personally shoot DNG waaaay more than DPX, but still primarily shoot ProRes. I'll use DNG for the high-frame rates and for some specialized/high-end projects that can warrant the more complex workflow.
 
uncompressed RAW is uncompressed and not debayered

uncompressed 444 (for example) is uncompressed, but debayered

both are recorded on a high data rate, but the uncompressed raw allows for more post flexibility, since some color information is not baked into the footage.
 
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