i thought the mx500 read at 800DPI default(regardless if drivers are installed or not), the only way to make it run at 400DPI was using the logitech advanced mouseware?
and if the drivers double it, it's probably bad news
im sure they're using something like interpolating, like dslr companies use to pump out say 10megapixels out of a 5megapixel camera
more pixels at the loss of overall image quality
That's not true imo, I just wrote myself a tool to switch to 800dpi without the drivers. I just send one message to the usb device and it changes to 800dpi. Don't know who came up with the software thingy but that's not true!
it's true for digital cameras, at least
i know that mice with switchable dpi work by "clipping" the area that the sensor is picking up, thus reducing the dpi count.
I didn't say that, the rumours always say that the DRIVERS are faking the interpolation and the 800dpi, and I just said/mean that is just proven wrong. I can switch from 400dpi to 800dpi and vice versa with windows drivers + a tool.
I've owned mx510 which was also supposed to be 800dpi, and i've used the DA and mx518 which can acutally run at 800dpi (900 for DA), which feels entirely different from 400dpi.
800, as compared to 400 dpi, is pretty much doubling your sensitivity. if u use sens of 4 it would feel (almost) like using 8, once u switched to 800dpi.
if ur not experiencing anything like that when supposedly switching back and forth from 400 to 800 dpi, then the mx500 does not function at 800dpi.
well my mx510 felt quite different between 400dpi and 800dpi (imo not just half/double sens), but I set that stuff in linux which might do something completely different than windows drivers :s but I think the mouse is really capable of 800dpi