Is there any noise or not?
Posted 08 November 2010 - 05:52 PM
But today I bought a mini-hdmi cable, and when I was testing this video on tv, the noise was gone.
Now, I have a lot of questions, so if you could please help me:
Is there any noise, and where is it coming from (ISO 100)? Who do I trust, laptop or TV?
What is the maximum that can be drawn from these footage?
Posted 08 November 2010 - 10:22 PM
Without having more info, and maybe even after having more info, I'd trust the clean signal on the HDTV more than what you are seeing on the laptop. I'd be inclined to think that something is happening to the footage in digital post that is causing it to look grainy.
Posted 08 November 2010 - 11:02 PM
If you are color timing yourself, I would highly recommend you get a professional monitor, or at least get *access* to one. Have any friends in with connections? I'm sure laptop LCDs have gotten a lot better, but you have to make sure you have one designed for professional graphics use and you have it calibrated.
I think CRTs are still the best for this sort of work, if you can find them.
Posted 09 November 2010 - 08:24 AM
After I watched the footage footage on more than one monitor and saw that sometimes there's noise, and sometimes there isn't any. That's good and bad news at the same time. The good news is the footage is noise free, and the bad news is I don't have a compatible monitor to work on.
Do you have any advice about processing the footage in order to make it noise free on most monitors? Do I have to compromise, and how much?
Posted 09 November 2010 - 09:02 AM
There really aren't any good cheap monitor options. The only "bargain" I know of is if you need to buy a high end laptop buy one of the HP Elitebooks that are available with DreamColor LCD displays. It adds $400 to the purchase price of the laptop but gives you the full equivalent of a $2400 DreamColor monitor.
Edited by Hal Smith, 09 November 2010 - 09:06 AM.
Posted 09 November 2010 - 06:15 PM
Posted 20 December 2010 - 08:26 PM
Neutral Preset with:
0 Color Tone
With HTP turned off, the ISO with the least video noise was either ISO 100 or 250. They were both about the same.
Next best was ISO 160, followed by 125, 200 and 320 which all looked about the same.
With HTP enabled, 320 was the least noisy. The remaining ISO's all exhibited similar noise characteristics, but 400 and 500 seemed slightly less noisy than 200 and 250.
7d-iso-test.zip 46.15KB 27 downloads (Open these PNG's in Photoshop and zoom in to see the detail.)
- MOV's importeded in Premiere CS5
- 1080 frame grabs exported as TIFF's to Photoshop
- Photoshop: Midtone Level Adjustment = 3