[DJVege]

Hi guys,

I've noticed after playing around with the TouCam 840K, taking vids of Jupiter, that the higher magnification I use, the darker the image is. For example, using just the TouCam, the image is very bright, I take gain to 0, saturation to 100% etc.... and the image is great.

However, stick a 2X barlow, and with the gain at 0, the image is darker...5X barlow, and the image is darker still!

Why is this? And is there a way to brighten the image? I'm guessing I just play with the gain...but as I'm no expert (or amateur) in imaging, I thought I'd ask.

Thanks.