Dubbing movie to BETA SP for projection....

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PimpDaddyDA

Well-known member
Hi folks, got a flickering question regarding dubbing from PPRO....

I know when I do a tape dub from the computer (export to tape) to a regular mini dv, the hot spots will flicker.

When I do a dub from the computer to the DVX100a, the recording does not flicker, because the camera records it in the progressive mode, and there is no drop down issues.

Question:

If I dub from the computer to Sony BETA SP, will it flicker also? Or is that recording a progressive one similar to the DVX100a recording and it won't flicker?

Help!
Thanks,
Darryl
 
I would recommend that you consider having it transferred to Digibeta as the quality will be much better. Most festivals (I am assuming that is where you will be projecting) can handle either SP or Digibeta.
 
If you avoid an analog transfer (Beta SP), then the flicker associated with out of spec NTSC luminance would be avoided.

A transfer to Digibeta would best be handled by a conversion specialist. Just output your project to tape and then let them handle the conversion from 25 Mb/s SD video to Digibeta.
 
PimpDaddyDA said:
I know when I do a tape dub from the computer (export to tape) to a regular mini dv, the hot spots will flicker.

When I do a dub from the computer to the DVX100a, the recording does not flicker, because the camera records it in the progressive mode, and there is no drop down issues.
Click to expand...

I don't think there's any difference if you output to a dvx or any other minidv cam/deck. And i don't think dvx can process (progressive, cinegamma, etc..) images coming from an external source

Andrea
 
khmuse...

I transfer the movie to tape (mini dv) w/the flickers.... Then, I can take the tapes to a dub house and have them transfer it to digibeta, and the flickers will be gone??
 
The problem seems to be the hot spots ( over exposures).

Post a screen shot so we can see what they look like.

Where do you observe the flicker ? ( Computer monitor, external monitor, projector ?)

The fix is more likely to be in sorting the hot spots , not the delivery medium.
 
PimpDaddyDA said:
khmuse...

I transfer the movie to tape (mini dv) w/the flickers.... Then, I can take the tapes to a dub house and have them transfer it to digibeta, and the flickers will be gone??
Click to expand...

Digibeta has more dynamic range than SD video, so the answer is very likely yes, the flicker problem should be either reduced or eliminated. Take a small part of your film (one that exhibits the problem) to the post house and ask them to do the transfer as a test (mention that it is part of a larger project and they might do the work for a very reduced rate as a test).

In all my comments I am assuming that your are discovering the "flicker" on an NTSC monitor and that these sections are likely above the luminance limits, if this is some other problem, it may not be helped by the transfer to a wider dynamic range format.
 
yeah, I'm going to just reduce the brightness level where it flickers. That seems to work.

I get the hot light flickers when I watch the movie on a tv screen from dvd or from tape. When I watch the movie on the computer, it is fine.

I'll reduce by 10% and it seems to clear it up.

Also, I've learned that I can project from mini dvd tape, instead of dubbing to an expensive digibeta or beta SP. I heard mini dv tape looks just as good as beta SP.

On and on we go.... it's all up to the audience in the end....

Hell, if the movie is good, they'll watch it on black and white 16MM.

Or it could be on 35MM brilliant color and nobody will care, if the movie sucks.

Thanks for all your advice, you folks are awesome.

Darryl
 
PimpDaddyDA said:
Also, I've learned that I can project from mini dvd tape, instead of dubbing to an expensive digibeta or beta SP. I heard mini dv tape looks just as good as beta SP.
Click to expand...

Actually, if you can project from native miniDV it will look better than a dub to Beta SP as you will avoid a number of mode conversion steps. This should be notably better than DVD as you won't be going through the MPEG compression step. Just fix the luminance levels and you should be good to go.

Best of luck on the screening!
 
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