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Old April 12th, 2007, 07:58 PM   #31
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I've got a 7am call tomorrow, and I'm not packed, so it won't happen tonight. I will try to get it together in the next few days though. Maybe we can figure what the trigger is. I'm wondering if it is having both very bright and very dark sections in the frame?
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Old April 12th, 2007, 09:23 PM   #32
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Thats what i pointed out previously in Eric Gulbransen's thread - when i am getting the noise most is in shots whereby you have contrasting light and dark colourings.
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Old April 12th, 2007, 10:19 PM   #33
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progress?

Shot this today just for you Tyson. Now doesn't that make you feel all warm and cuddly?

5:30pm SanFrancisco. Bright sunlight area, mid shade area, dark shadowed face in a high contrast against the blue sky - again. Only this time we did much better I think.

Here's the web compressed screen shot jpg
http://www.gotagteam.com/images/Sach...astTestWEB.jpg

Here's the full res jpg
http://www.gotagteam.com/images/Sach...ntrastTest.jpg

Life has changed since I hooked this camera up to the TV to set back-focus. Don't know if that was it entirely, but it sure helped.
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Old April 12th, 2007, 11:51 PM   #34
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Thats pretty good - a far leap from what im getting!
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Old April 15th, 2007, 12:42 AM   #35
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just something to throw into the mix

Is the problem being raised on noise mainly sitting with the HD200, or the HD250 as well. For some reason it's occurring to me the people piping up use mainly the HD200.
Now this is a completely uneducated stab, as I'm sure some even reading this now may be using the colourful language to the effect of 'Get Real!'. But maybe if that was the case, that we have nobody complaining about the 250's, but we have a number complaining about the 200's. That because there has to be in some aspect a slightly different data path or flow, that the 200's have incurred noise over the 250??
I know, I know, I'm just desperate, but thought I'd throw it out there.

Cheers

Adam
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Old April 16th, 2007, 09:49 AM   #36
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Quote:
Originally Posted by Adam Letch View Post
Is the problem being raised on noise mainly sitting with the HD200, or the HD250 as well. For some reason it's occurring to me the people piping up use mainly the HD200.
Now this is a completely uneducated stab, as I'm sure some even reading this now may be using the colourful language to the effect of 'Get Real!'. But maybe if that was the case, that we have nobody complaining about the 250's, but we have a number complaining about the 200's. That because there has to be in some aspect a slightly different data path or flow, that the 200's have incurred noise over the 250??
I know, I know, I'm just desperate, but thought I'd throw it out there.

Cheers

Adam
200 and 250 seem to be the same.
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Old August 23rd, 2007, 10:58 AM   #37
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what's the settings used in this picture ?
i also have some noise and can't get ride of !
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Old August 23rd, 2007, 12:32 PM   #38
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Eric, what picture are you referring to?

Just as a side note I've noticed that in a lot of the settings that people offer on this forum, "detail" is usually set real low. Also no gain. You should try some of Tim's settings here http://www.dvinfo.net/conf/showthread.php?t=62835
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Old August 24th, 2007, 04:15 AM   #39
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Image Noise 250

Did a test with our 250 going SDI into a Digital Projector, a new top of the range
Barco, sorry but do not have the model number at this time.
We used a standard 10m tv bnc cable to connect our camera abd a Sony 500
side by side, looking at the same subject, in daylight.

We noticed a fantastic improvement over the SD, Sony 500 composite in terms of detail, for instance the 18x lens produced a lot of visible backlit dust for example, but....
The image noise produced made it appear we were running with 6db gain !
This confuses me, as this noise is not a product of the MPEG 2 codec...
Sorry, do not have screen shots at this time, but if enough interest is shown I'll organise another test and take a stills camera.
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Old August 26th, 2007, 12:05 PM   #40
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i was talking about this one:
http://www.gotagteam.com/images/Sach...ntrastTest.jpg
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