DV Info Net

DV Info Net (https://www.dvinfo.net/forum/)
-   Sony HVR-Z1 / HDR-FX1 (https://www.dvinfo.net/forum/sony-hvr-z1-hdr-fx1/)
-   -   high shutter speeds = distortion/artifacts? (https://www.dvinfo.net/forum/sony-hvr-z1-hdr-fx1/481989-high-shutter-speeds-distortion-artifacts.html)

Tom Hardwick September 9th, 2010 04:55 AM

Most CCD cams are far more prone to CCD smear at high shutter speeds. Your 'graininess' description doesn't sound like this though.

David J. Payne September 12th, 2010 12:31 PM

Tom, that might well be it, I looked at a recent case (didnt take a still this time) and there is quite a lot of blurring/smearing as well. I'd have thought a high shutter speed would have prevented this but it seems to have made it worse

Tom Hardwick September 12th, 2010 01:26 PM

3 Attachment(s)
CCD smear was a disastrous failing of the PDX10. I tested the camera for Computer Video magazine a few years back, and my tests showed that smear made any shutter speed faster than 1/100th sec a no-go area.

Aric Mannion September 13th, 2010 03:06 PM

Quote:

Originally Posted by David Payne (Post 1568602)
Tom, that might well be it, I looked at a recent case (didnt take a still this time) and there is quite a lot of blurring/smearing as well. I'd have thought a high shutter speed would have prevented this but it seems to have made it worse

The FX1 has a 24p cinema effect (or 25 in your case). Have you tried using that? Granted it's not true 25p, but neither is what you are doing.

My videos look a lot like the screen shot you attached when I view them in Final Cut. That's why I de-interlace and/or convert to pro res. What program are you looking at and what's your codec?

David J. Payne September 14th, 2010 05:54 AM

Do you mean you deinterlace when exporting stills or the actual video? I only deinterlace video when slowing it down but I still manage to get quite bad jitter.
I use premiere pro cs4 and I'm unsure of codec but export as 1920x1080 mpeg2.

Thanks for the ccd smear info and pics, although I do get that it appears I can now rule that out of this issue.


All times are GMT -6. The time now is 11:11 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2025 The Digital Video Information Network