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-   -   Addressing Motion blur in Progressive modes. (https://www.dvinfo.net/forum/jvc-gy-hm-150-100-70-series-camera-systems/237971-addressing-motion-blur-progressive-modes.html)

Alex Humphrey August 5th, 2009 08:35 PM

Quote:

Originally Posted by Steve Mullen (Post 1178111)
Frankly, I am always puzzled by why folks praise the higher resolution of 1080i and yet seem not to be bothered by "interlace flicker/twitter."

Steve, thank you for saying it, and I'll second it. "Death Before Interlaced" is my motto. I even cover soccer and other sporting events in 24p because I think it makes a better DVD transfer than anything else when viewed on a HDTV. (though I could capture 60p at 1/60th and use in a 24p timeline and have the 60p as a source for nice slow motion instant plays.... but that just means more work. Just pan with the action with 24p and everything is fine. I mean no one complained about judder in TITANIC or TERMINATOR 1 & 2 or any movie I remember (other than BLAIR WITCH PROJECT). You just have to be a better camera operator and really keep the shutter at 1/48th or if you have to 1/60th. But I know many films have gone over 1/500th on a static shot (before SAVING PRIVATE RYAN) because they didn't bring enough ND filtration with them.

Steve Mullen August 6th, 2009 11:27 PM

Quote:

Originally Posted by Alex Humphrey (Post 1185938)
Steve, thank you for saying it, and I'll second it. "Death Before Interlaced" is my motto. I even cover soccer and other sporting events in 24p because I think it makes a better DVD transfer than anything else when viewed on a HDTV. (though I could capture 60p at 1/60th and use in a 24p timeline and have the 60p as a source for nice slow motion instant plays....

I tend to get distracted by what SHOULD NOT be in an image. Back in the Hi8 drop-out days glitches drove me crazy, yet when I taught a video class in Japan I had to really work to get people to see them. (Perhaps living in a crowed world enabled folks to be better at not being distracted.) Perhaps Sony honestly didn't think the glitches were a problem! :)

I think it is the artifacts of video we have learned to live with that drives film folks nuts. Things like edge enhancement that would never be found on film.

Of course, dust in the film gate drove me nuts -- so perhaps it purely individual as to what folks find objectionable. In which case, camera reviewers may need to share their biases as part of their reviews. It's my visual bias that agrees, ""Death Before Interlaced."

Marcello Mazzilli October 2nd, 2009 11:18 AM

Two questions... (all numbers are for Europe.. 30 and 60 should be for USA)

1) Does the CCD size count when panning in progressive 25p? Will (at same frame rate/shutter) there be a difference with a 1/3sensor or a 2/3 sensor ?

2) In TV shops they sell 100Hz and 200Hz LCD and LED TVs that create missing frames from 24p BluRays and also DVDs. I can see even old movies with an incredible quality and frame smoothness. How do they do the trick? Also.. I remind.. LCDs don't have "real interlaced" (electronic pen drawing first upper lines then lower lines) but what they do really is create 50 full frames from 50i. For example ... I've been told some TVs have a realtime circuit that can create a 1080/50p stream from a 1080/50i stream by interpolating in this way...
Let's say I have 1ul, 2ul, 3ul, 4ul, etc.... They create (1u+1l), (1l+2u), (2u+2l), (2l+3u), etc... In this way.. sure they interpolate but they have 2 different "full" frames from every single 50i frame and they can have a 50p stream from a 50i signal.
Is it possible that I cannot find any plugin/software etc.. that uses a similar process to change my 1080/50i into a 1080/50p and not a 1080/25p ?

.. still.. I don't understand what 100Hz and 200Hz TV set do ?!!


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