Microsoft Lifecam Studio vs Logitech c910 side by side comparison

Logitech c910 vs Microsoft Lifecam Studio side by side video comparison in the video review on this link

http://www.engadget.com/2010/09/13/microsofts-1080p-lifecam-studio-review/

Update:
I have bought the C910 and I am very pleased with the purchase. The low light sensitivity is excellent and the image and sound is sharp. I am glad I bought it.

I have also installed a Logitech C260 for my aunt and I was impressed by it. The clarity was really good and the low light sensitivity was just as good also. I recommend getting at least the C260 if you are looking at the price, definitely aim for an HD cam!