Toke
Forum Replies Created
-
Interlace flicker has nothing to do with frame rate.
All 1080i displays can show 1080p24/25/30 shot material, when it is feeded in 1080i50/60.
That’s what most broadcasters do; broadcasting progressive film footage in 1080i.
Hvx200 records 1080p material in 1080i/24p/30p mode, so it converts the progressive picture to 1080i already because of legacy reasons of dvcprohd tape format. -
[gary adcock] “sorry I do not know of any software and hardware combo that supports the rec709 color space calibration on an Apple display.”
The idea in profiling is not to limit display’s ability to show colors.
You profile it to show everything it can perfectly with right tones and after that you can compare how wide the color space is. Most new hq lcd’s exceed 601 color space, so I believe they are very near for handling 709 space. -
You can use computer monitors for color grading if you just calibrate and profile them perfect.
Then you just need something like eye-one and a good software with it.
With those you could also buy another graphics pci-e graphics card and add second display to that.
Then you can have 1:1 pixel monitoring and nice long time line in 30″ to work efficiently. -
Do they have computers with analog component output in the dub shop, so that you could just take an external hard disk to them?
-
[Jan Crittenden Livingston] “The difference is that in HDTV the monitors are able to resolve the resolution, unlike SD.”
1080i crt will _not_ handle unfiltered 1080p without “interlace flicker”.
It is excactly the same than 480i crt (ntsc) won’t handle unfiltered 480p without flicker.Flicker occurs in interlced picture when there’s a detail that has only height of one scan line or one pixel. It gets drawn only every second field (=half frame) and that’s why it blinks 30 times per second (25 Hz in PAL or 1080i50).
It does not matter how many scan lines there is in the picture. Everybody who has used Commodore Amigas or old graphic cards with pc that had interlaced modes will remember this. Same flicker shows with 320i/320p, 640i/640p, 800i/800p and so on.Jan, if you don’t believe us, ask somybody in tech department at your work or go see any post house that uses those madly expensive sony’s 1080i crt production monitors with 1080p material.
If somebody who has hvx200 and 1080i crt monitor could hook these up to each other and tell if there’s any flicker. If there is flicker, then hvx200’s 1080p is not filtered and it has more vertical resolution than 720p. If there isn’t any flicker then 1080p is (low-pass) filtered and it can’t have better vertical resolution than 720p.
Jan, how much better horisontal resolving power 1080p mode has compared to 720p mode?
Some “official” resolution chart shots would be very clarifying, thank you!So far we have only some not so professionally produced chart shots which show only a little over 600 lines of horisontal resolution even with 1080p!
Take a look at Zeiss’ web site. They have published very convincing MTF graphs of their digiprimes.
They have nothing to hide, so do Panny has…? (Did I hear somebody saying ccd specs and pixel shift type? …Nooo… 😉 -
Yep, cheap battery powered offloading is what I’m looking for.
LaCie’s Rugged also looks like it won’t break the first time you drop it in the field.
Cineporter looks excellent also, if just one’s wallet permits.
Firestore isn’t so attractive to me anymore, since in the light of recent resolution charts, there won’t be much idea to shoot 1080 and it seems a bit funny to fill that firestore at 100Mbps with 720p and have also additional step in the post to remove dupe frames. -
Hmm, in Toshiba’s specs it is said that in “PC Card Memory mode” transfer rate is 20MB/s (=160Mbps)…
-
Ok, I got overexcited.
No power via fw from hvx200.
I wonder how much would cheapest battery with somekind of signal of its state to feed the Rugger LaCie? -
Igor,
can’t you use composite output as a sync?
Or is there some converter box needed to convert composite to acceptable genlock signal?
It’s been too long time for me to remember… -
[gary adcock] “One has nothing to do with the other. Why? why should a progressive image have less detail than the interlaced content from the progressive capture. The camera has a 1080p imager. it starts as a progressive image.”
So do dvx100 have progressive imager.
Both have “V DETAIL FREQ” setting when shooting 480p.
With that setting you can reduce vertical details so that there’s no 30 Hz flickering of the details in interlaced display (like regular crt TV).And because there’s no setting for 1080i mode, it makes me wonder if
1) vertical resolution is always reduced, or
2) vertical resolution is never reduced and if 30 Hz flickering of details disturbs you with interlaced monitor, it’s just too bad, or
3) camera’s lens & imager combination produces always so soft picture that there will be no 30 Hz flicker anyway.And no, camera does not luckily have 1080p imager. Each ccd has less vertical pixels than that. It is adverized to have “1080p block”. If every ccd had 1080 pixel vertical resolution, each pixel would be so small, that the noise would be horrible.
And recent posts in various forums show resolution charts that suggests that the camera’s real resolution is about 600×600. Like Steve Mullen said, you can get a camera for $2k with resolution of 600×500.
I’m starting to think do I want to pay 8k more for 20% more resolution and 16:9 AR…