Christopher S. johnson
Forum Replies Created
-
Walter, can you tell us about your disappointments with ProRes? I am advocating it to many producers I meet. From feature docs for the big screen to television. Even budget feature films, without ever going to uncompressed.
Also, have you ever seen an example of a difference in quality between the regular and the HQ version that is perceptible?
Thanks for the info.
-
Easy Set-up does not change the View setting. True.
-
Right. This is almost useless and only shows arbitrary timecode until you pause. It does NOT read the Quicktime or Sequence timecode until paused.
Oh well.
-Christopher
-
Try using Compressor to downconvert the 720p 60 file and choose the Progressive setting on the field handling. This might make a beautiful 30p NTSC. Just an educated guess.
-Christopher
-
Gary said, “( you do realize that 1080 is not P but Psf) ”
Actually, I know of the name, and I used it to capture HDCAM footage the other day, but no, I do not know the meaning of Psf. Enlighten me.
So, for another project of mine, using a Kona LHe, a documentary, I have captured
– About 40 reels of Varicam as native DVCPRO-HD 720p 23.98
– About 20 reels of F900 HDCAM to standard ProRes 1080 23.98Psf
Right now, for the edit, I am using the DVCPRO-HD 720p 23.98 Easy Set-Up and Sequence. This allows the Kona control Panel to put up with displaying both formats from the Viewer.
If I was in the ProRes 1080Psf world, the 720 stuff would play in a Sequence because of FCP 6.0.2 Open Timeline, but then the viewer would NOT display the 720 stuff.
Rendering each footage in each other’s timeline/sequence looks OK, but there is some fine aliasing. I haven’t tried the high quality scaling settings in the 720p Sequence yet.
What would you do with those two formats already captured and a Kona LHe? What are the strengths in Final Cut Studio with this card that would make the 1080 or the 720 Sequence a better meeting ground for these two formats? Oh and we may very well do a film-out.
Thanks for any info. I’ve been using FCP since version 1.0 in 1999 and its always good to glean new perspectives. Its a been a long strange trip.
-Christopher S. Johnson
-
Walter: “1080 to 720 or 720 to 1080 is an HD Cross Conversion. It is a high definition to high definition conversion of one format to the other. There is no “down” conversion whatsoever.
These are completely different procedures. Down-converts to SD are much easier to perform than Cross Conversion from one HD format to another.”I hear you, and respect that you share an opinion with the company, but I remain skeptical of the 1080 to 720 claim.
Actually the point is moot now for me. I’m recording HD broadcast stuff from an HD-DVR (for temp footage) and the consumer HD-DVR does a brilliant conversion from the 1080 to 720. Looks very clean, even upon close inspection. It appears the hardware to do this is not very expensive.
-Christopher
-
Walter: “High Def ain’t cheap but it’s a heckuva lot cheaper these days thanks to companies like AJA giving us incredible hardware for a very low cost.”
Agreed. And I would have paid $2000 even for LHe, instead of $1600 if it “cross-converted” 1080 to 720.
Oh, and I rent decks.
-Christopher
-
Oh, and $4000 for a capture card (Kona 3 plus component converter) is not possible now, but its nice to know what 4G’s can buy these days.
-Christopher
-
Walter said, “I really don’t follow. AJA clearly advertises what their cards do and don’t do. The LHe (and LH) clearly offer HD to SD downconversion only. ”
Right. You and the website are technically right. But in casual conversation this card is discussed just as “not having up-conversion abilities”. This is one of the two major things one says in a conversation about the difference between the two cards. Its just the way it gets discussed in groups — often. My bad for misinterpreting that.
Thats not the kind of logic I’m talking about. I’m not discussing a legal complaint at all. I’m not even bitching too much. I’m not even saying that I feel that an injustice has been done.
I’m talking about the engineering perspective and what the technology is capable of. There is a logic that goes like this: ” because the card can down-convert from 1080p all the way down to SD in perfect 10 bit, it would seem like less of a stretch to down-convert from 1080 to 720 and would not require the serious up-converting hardware of the Kona3″
I think that has a line of logic to it.
Thanks for the input.
-Christopher
-
Thanks for the reply. There is a sort of illogical-ness to it though. I wasnt expecting a “cross-conversion” from 720 to 1080, for example. And the “work” involved in downconverting from HD to SD seems to be equal or greater than that of 1080 to 720.
I’m not asking for a defense of the company and I actually love the card, but there is a smell of disabling of utility so that marketing can do its thing.
I needed the analog inputs and that takes priority. C’est La Vie.
– Christopher S. Johnson