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View Full Version : weird artifacts...ISO related?



DrBlaz
05-25-2009, 04:14 PM
again with the weird artifacts!! ups I'm really worried about that, lets see..

as pointed before, the weird artifacts do not seem to be codec related, the bitrate is enough and panasonic is one of the mothers (or fathers!) of the AVCHD codec.

in this web you can download some test videos, well this guy returned his gh1 cause he dont like it...

http://lemon.soju.co.uk/g1/gh1-video-tests/


Reading the GH1 manual, it states that the cam changes the ISO automatically, even with a mode called "intelligent ISO" alowing small ISO changes.

The problem do appear in all videos except the ones where, according to GH1 manual, the ISO is locked.

you can see, the videos 9,10 and 11 are totally clean, and are full manual, and ISO set to 100 and 1600, all the others have artifatcs when ISO changes automatically.

So, the weird artifacts seems to be the gh1 ajusting the ISO automatically, may be a gh1 owner could test this...

Isaac_Brody
05-25-2009, 10:04 PM
One thread is enough about artifacts.