Re: Colorsync-users Digest, Vol 2, Issue 506
Re: Colorsync-users Digest, Vol 2, Issue 506
- Subject: Re: Colorsync-users Digest, Vol 2, Issue 506
- From: Ray Maxwell <email@hidden>
- Date: Wed, 21 Dec 2005 13:33:33 -0800
Stefan Steib wrote:
The only way to get over this is to use a blue compensation filter for
tungsten
Do you have any examples of this practice improving the s/n ratio
significantly?
Now let us reason together...
1. A filter cannot add any signal or increase the light that comes into
the camera.
2. I suggest that placing a filter over the lens of the camera cannot
lower the noise of the blue channel of the CCD or CMOS sensor.
3. A blue filter will reduce the amount of light reaching the Red and
Green sensors.
4. This same blue filter will not increase or decrease the noise in the
Red and Green sensor.
If these facts are true, I suggest that the signal to noise ratio will
not be improved by placing a Blue filter over the camera lens.
Are you sure that the experiment you tried was well controlled?
Are you sure there was not some other factors that influenced your results?
Can someone explain either the flaw in my logic or give other evidence
that would support how adding a blue filter will help the signal to
noise ratio.
Thank you,
Ray
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden