[Alexander @ Oct 31st 2007 2:17PM]

But that still doesn't answer my question. I know that is what it does, and it is very handy to have when your sniping. When small movements are needed.

My question is on the actual chip INSIDE the mouse. It is a little bitty camera. Are they changing the resolution on the camera, or are they just multiplying the on-screen movement versus the actual on-desk movement of the mouse.

I already kind of know the answer. If they were increasing the resolution of the camera, it wouldn't matter much in terms of on-screen movement. You can change your mouse-speed to whatever you want anyway. They are just taking the input from the mouse, and multiplying it by a factor before they send it to the OS.

To the OS, it appears that you've moved your mouse farther than you actually have--and the opposite is true when you scale it back.

[eX @ Oct 31st 2007 2:44PM]

Supposedly the cmos camera does increase in resolution. The 3200dpi camera in Logitech G7 is supposed to be something like 6.4MP, which according to specs is same as what you get in a G5. However G5 is said to have a 2200dpi. Logitech's supposedly has higher res actual sensor that other cheaper makers but the whole 3200dpi still leads me to believe it comes from software interpolation and actual sensor puts out less. The new G9 mouse has exactly the same rating of 6.4MP for the camera which further suggests that the extra 1000dpi comes from software interpolation. Personally, I find even the 2200dpi (max) on my G5 be too much as it becomes too sensitive and lacks precise control. So I don't think there's a lot of sense in getting a mouse with 3200dpi, regardless whether it's full hardware dpi or not. I'd rather spend the difference in money and get a nice gaming grade mousepad like Razer eXactMat or similar from other companies such as Saitek. A nice mouse pad with grain designed for a laser mouse will ultimately be the best to get you the needed precision (I know that laser tracks well on most surfaces but from personal experience a good mouse pad still makes a difference).