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#1 |
Regular Crew
Join Date: Jan 2005
Location: USA
Posts: 90
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Help: New HV20 Blocky Square Artifacts
Hi All,
Got an HV20 a few weeks ago. I'm only interested in shooting 24p and use JESDeInterlacer on Mac OS X for doing inverse telecine. All works great except... I am seeing blocky square artifacts every few seconds primarily (although not exclusively) along the right edge of the frame. These are clearly visible both upon playback in-camera and after import. At first I had assumed these were because of the tape stock I was using (high end Sony HDV tapes that were about a year old) or because I had tested right from the beginning of a new tape. I decided to try some new consumer Sony HDV tape stock this morning, but same thing. There are three possibilities: striping is mandatory, I got a bad unit, or the HV20's 24p mode compression is so crappy that huge pixellated blocks boiling across the image is considered acceptable on a $700 HDV camera (not to me, buddy, but maybe to someone). I'm going to try striping a tape next to see if that helps at all. I simply can't use footage like this, it's too distracting and would be a nightmare to try and fix in post. Massively disappointing! Here are a couple of still images of what I'm seeing - look to right edge of frame and see big square blocks. Then imagine little swarms of these flickering randomly every few seconds: http://img.photobucket.com/albums/v4...el/Blocky1.jpg http://img.photobucket.com/albums/v4...el/Blocky2.jpg Settings are 24p with cinema gamma, auto-shutter, instant auto-focus and image stabilization enabled. Help me out here folks - have I got a bad unit or is this what everyone is dealing with and, if so, is there any way to make it stop? |
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#2 |
Hawaiian Shirt Mogul
Join Date: Nov 2001
Location: northern cailfornia
Posts: 1,261
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have you tried tape head cleaner ?
when my HV 20 does this i clean the heads ... |
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#3 |
Major Player
Join Date: Nov 2006
Location: Victoria BC
Posts: 400
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Yes, looks like MiniDV dirty heads (personally never happened to my HV20). Simple fix, as Don suggested.
If it doesn't, let us and Canon know.
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Mac + Canon HV20 |
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