[Jan Crittenden livingston]

Ah ha, I see what your reference is. I do believe that Poynton is referencing Standard Definition Screens as that is where excessive resolution comes to play. In HD it is not the same game. I think of twitter as the temporal difference, and that is what I was thinking of earlier in responding to you as it have seen the excessive resolution on SD systems turn into what I would call aliasing not interfield twitter.

Point it is not the same in HD except the temporal differences.

Hope that helps,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

Graeme Nattress:So that blued out control is only valid for certain modes, and in modes that it’s not relevent for, it’s blued out? Thanks for the clarification, as I’d got the misunderstanding that the menu item was just permanently blued out, and hence never choosable. I’d guess it’s choosable in the SD modes?

That is correct.

Reading in the HVX200 manual from the link you kindly posted, the description of the effect of thick/med/thin in “480i progressive mode” is exactly the description of interlace interline twitter.

Can’t help that, I have never seen anything that gets rid of interline twitter. Have you? It is a translation thing, it is about excessive resolution on an SD monitor looking really awful, and maybe it, in some cases, looks like more excessive interline twitter, and that is where the the description came from, but it is a filter that filters off the top end of the resolution.

Best,

jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

[Ron Shook] “An “LSI” is some sort of custom circuit or chip?”

Hi Ron, it is a Large Scale Integrated circuit that has a fairly specific sets of software that is a housekeeping firmware for the P2 card, read, write, delete, display and playback.

An off the shelf PCMCIA HDD will not work as it is missing this firmware.

Does that help?

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

Graeme,

If you read my post, the function is not about twitter, but rather too much resolution that turns into aliasing. HDTV montiors have the resolution and thus the problem of too much reslution goes away.

>interlace twitter, it’s an issue.

I never said it wasn’t. The Thick/Thin is not about twitter at all, it is about too much resolution being sent to a SD monitor than cannot display it and thus, turning it into garbage.

>Me:You won’t find it there, it is always Blue(that means it is not a valid choice).” Graeme:
Does that mean there’s a menu choice that’s never choosable?
If so, then that’s ludicrous.

Graeme if you ever worked any of the DVX100 camera you would know the situation and how the camera worked. A blued out menu is non-relevant to the mode you are in. Frankly to have the item drop out of the list would be a programming nightmare for the engineers on this camera. Because not only would there be a need to drop the menu item but then to make sure that nothing else dropped and then to be sure that it came back in in all of the other modes that it was relevant to.

Thanks,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

Hi Mariuz,

The way the guys, that did the demo footage in Las Vegas and LA, worked was with just 2 P2 cards from Thursday till Saturday, when I finally showed up with more. All they did was while one card was recoding, the other was transferred to the Hard Drive via the computer and using that old standby software called Windows Explorer. The DP said he was never waiting for a card to record onto. The cards transfer faster than you can fill them, esp. in 720P/24PN. It is just as viable of a work-flow as the P2 store, but cheaper since you may alread own a laptop computer and a hard drive, although not as small of a package. 😉

Best,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

>toke lahti:”Just tried to find from manual if there’s a setting in hvx200 for “V DETAIL FREQ” in 1080i mode?

You won’t find it there, it is always Blue(that means it is not a valid choice)

>If there isn’t, does this mean that 1080p24 always has reduced vertical resolution to remove line flicker from interlaced displays?< The flicker is not what it removes. Let's back up here. The NTSC monitor can show about 380 lines of resolution, the DVX100 can record about 450. If you put that much resolution into the 380 lines you can get a lot of aliasing and noise in that overly detailed area. So we put in the Thick/Thin filter. It is used for back down some of the resolution for an NTSC/TV out. End of chapter one against TV technology that was invented in the late 50's/60's. Let's move forward to HDTV. This "too much resolution" is not an issue and thus to limit the resolution is ridiculous because the technology and resolution in these sets can handle it. The sophicticated filters that are in the sets, jut roll it off instead of making it a mess, or at least the better known brands do. >Or does this even matter if the camera does not have more real resolution in 1080 mode than 720 mode?”

There is more resolution on the HVX in 1080i than there is in 720P horizontally anyhow.

Best regards,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

They lack the necessary LSI that understands and directs traffic in MXF.

All good things come with time.

Best,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

You should contact me off line as I will introduce you to the right folks.

Thanks,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

Hi Michael,

Which singer footage? Can you post an URL?

Thanks,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Jan Crittenden livingston]

Michael,

Since you were kind enough to thank me for posting the manual, you could have taken a few minutes to read it. Take a look at page 125. The camera does have this ability.

Thanks,

jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems