What resolution is considered Standard Def?
- Thread starter SquidLips
- Start date
Barry_Green
Moderator
NTSC and PAL are standard-def.
In the ATSC broadcast standard, there's Standard-Def, Extended-Def, and High-Def. HD means 720p or 1080p or 1080i. Standard-def is 480/60i or 576/50i in PAL.
When recording to tape, the HVX records NTSC (or, in Europe, PAL) DV. Yes it's the same format as the DVX. It'll be native 16:9 and with a longer lens, but other than that, probably a good match for DVX footage.
In the ATSC broadcast standard, there's Standard-Def, Extended-Def, and High-Def. HD means 720p or 1080p or 1080i. Standard-def is 480/60i or 576/50i in PAL.
When recording to tape, the HVX records NTSC (or, in Europe, PAL) DV. Yes it's the same format as the DVX. It'll be native 16:9 and with a longer lens, but other than that, probably a good match for DVX footage.
Christopher Bell
New member
I suspect the HVX-200 will make a superior image to the DVX as it starts with a higher res chip. Think source first.
Chris Bell
Chris Bell
Nathan_Rodger
Active member
You want better than DVX from the HVX Christopher? Just record in DVCPro-50 at 4:2:2 colour space... hmmm will be nice I'm thinking...
Cheers, Nathan.
Cheers, Nathan.
MovieSwede
Well-known member
Christopher Bell said:
Higher res chips will not give better SD image. It can however give better widescreen image.
The res never needs to be higher than the compression permits. If a higher chipres cam gives better picture it has to do with everything else then the resolution of the chip.
Its not the source that counts, its the bottleneck.
Nathan_Rodger
Active member
MovieSwede said:
Yep its the bottleneck alright. - ie: the HVX recording to MiniDV likely won't give a remarkably better image than the DVX to MiniDV format. Same compression same capture method.
However higher res capture CAN give a better image. Eg film and HD downsampled to SD - but thats removing, or enlarging the bottle neck so I know thats not what you meant.
Meh I dunno what I'm saying! :laugh:
Thanks for that. But will the HVX also offer the variable frames in the standard def mode in 24P or does that not work that way?
Once I get the camera, I will be "blowing my wad" so will not be able to purchase right away the Firestore or P2 chip so will probably shoot a few shorts with the Stand Def so wondered if it offered the frame rates or not in that mode.
Once I get the camera, I will be "blowing my wad" so will not be able to purchase right away the Firestore or P2 chip so will probably shoot a few shorts with the Stand Def so wondered if it offered the frame rates or not in that mode.
SquidLips said:
Variable Framerates are exclusive to the 720P HD mode...which requires a P2 card or a firestore or possibly a laptop to capture live from it. No direct variable frames for SD to tape. If you actually have P2 you can downsample in camera and dump to the miniDV tape at the variable framerate. But that requires P2 in the first place. Which is what you are trying to work around.
stokestack
Active member
Also, if you record on tape, you're limited to old DV25, which has only half the color resolution of DV50 or DV100. It would've been nice if they had run the tape at double speed and given us a nice SD recording option, but nope.
Barry_Green
Moderator
... it also would have doubled the cost of the camera. A DVCPRO50 tape deck supports a 50-megabit data rate, and the deck alone costs $7,000.
Alex Leith
Well-known member
stokestack said:
DV tape doesn't have the tensile strength to reliably deal with being wound (and recorded onto) at double speed. The best you could expect is 133%[?] - which is the speed that DVCAM winds at.
As an aside, I think it would have been great if the HDV consortium had actually taken advantage of DVCAM winding speed to cram a bit more data into their MPEG stream. 1080i at 33Mbps would have been nice (perhaps).