Grainy/speckly video with Logitech Quickcam communicate

Archived from groups: alt.comp.periphs.webcam (More info?)

On Sat, 2 Apr 2005 11:10:07 -0500, "Simon-Pierre"
<spb137@hotmail.com> wrote:

>Hi,
>As u see from my subject my video is grainy and has speckles on it. I'm just
>not sure if its supossed to be like that or if theres somehting wrong with
>the cam. I can set the gain to lower values which makes it batter, but then
>it needs more light, but with lower gain theres alot less grain and
>speckles.
>Im just wondering if this is normal for this cam, if it is then im alright
>with it,I just neeed to know if its normal or not. ok thanks and hope
>someone has some input on this. and if you have some suggestions on getting
>the picture quality better just let me know.
>Simon-Pierre
>*by the way im on cable highspeed

Most of these types of cams need a lot of good lighting.

Archived from groups: alt.comp.periphs.webcam (More info?)

On Sat, 2 Apr 2005 11:10:07 -0500, Bob Horvath wrote:


It probably will depend on which Logitech camera you have. My daughter
has the Quickcam Messenger, and I have a Quickcam Pro 4000 and my
camera runs circles around hers. There is a very noticible difference.
>Hi,
>As u see from my subject my video is grainy and has speckles on it. I'm just
>not sure if its supossed to be like that or if theres somehting wrong with
>the cam. I can set the gain to lower values which makes it batter, but then
>it needs more light, but with lower gain theres alot less grain and
>speckles.
>Im just wondering if this is normal for this cam, if it is then im alright
>with it,I just neeed to know if its normal or not. ok thanks and hope
>someone has some input on this. and if you have some suggestions on getting
>the picture quality better just let me know.
>Simon-Pierre
>*by the way im on cable highspeed
>

Archived from groups: alt.comp.periphs.webcam (More info?)

Simon-Pierre wrote:
> Hi,
> As u see from my subject my video is grainy and has speckles on it. I'm just
> not sure if its supossed to be like that or if theres somehting wrong with
> the cam. I can set the gain to lower values which makes it batter, but then
> it needs more light, but with lower gain theres alot less grain and
> speckles.
> Im just wondering if this is normal for this cam, if it is then im alright
> with it,I just neeed to know if its normal or not. ok thanks and hope
> someone has some input on this. and if you have some suggestions on getting
> the picture quality better just let me know.
> Simon-Pierre
> *by the way im on cable highspeed
>
>
Bob Horvath is right. Most low to medium priced cameras have a cmos
device as an image sensor while the Logitech Pro 4000 has a CCD device
(the same sort of device that is found in digital cameras). The cmos
devices need a lot of light to function well, but they still will not
match a CCD sensor and graininess and speckes are 'normal' for these
devices under, what they consider, to be 'low light' levels.