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Canon XL1S / XL1 Watchdog
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Old January 19th, 2003, 04:16 AM   #1
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fields not in sync?

Could someone please have a look at this image :
http://mysite.mweb.co.za/residents/net03472/index.html


It is a jpeg picture the full bitmap image is also availible at 1.2Meg, captured it off a video file using premiere.

It seems to occure only when the camera (Canon xl1s PAL) pans. I believe it is caused in the camera, but maybe it could be related to my pc.

Could anybody tell me the probabile cause.

Thank you

Llewellyn
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Old January 19th, 2003, 07:17 AM   #2
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You are seeing a frame capture (two fields separated in time by 1/50/sec in PAL, 1/60 in NTSC) thus the comb effect at contrasty edges. This is cause by the camera motion in the pan, each field is seeing a slightly different image. To avoid this with the XL1, shoot in frame mode, or just capture a field.

Note that you will see a similar sffect without pan if you have a fast moving object in the image.
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Old January 19th, 2003, 07:28 AM   #3
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This topic has been discussed before and with a good explanation here The original poster's link is broken but you'll see it is common for stills in NTSC or PAL.

Jeff
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Old January 20th, 2003, 05:08 PM   #4
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I've also posted a lengthy reply on your other thread:

http://www.dvinfo.net/conf/showthrea...&threadid=6168
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Old January 21st, 2003, 01:02 AM   #5
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Thank you all very much.

Llewellyn
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