Phillips webcam resolution issues

[UKoctane]

I'm not sure if this is just me being terrible at planetary imaging, (which I probably am anyway.) But do any other imagers using a Phillips SPC900NC camera have huge resolution problems, it is fine normal size but if I want to make it slightly bigger than the tiny size that the images are, the resolution just disappears and you cant see anything. I am running with Sharpcap software for WIN7. Any ideas on how to increase the resolution above 640x480?

[JamesF]

I'm not sure I understand what you're trying to do here. Why do you think you can get a higher resolution than 640x480? Given that it's USB1.1 only, even 640x460 is compressed at 10fps. You really don't want it any worse.

James

[astromerlin]

Hi, Thats all the resolution the SPC900 has with astro capture software. To increase the size of the subject you are imaging you'll need to use a barlow.

For planetary imaging with my setup I use a 3x barlow sometimes with an extension piece to increase to distance between webcam and barlow, this effectivly gives the barlow a higher 'magnification factor' and increases image scale.

[UKoctane]

OK, thanks for the help