Reading around everywhere, some people say the D3100 flips the mirror down and up before opening the shutter again when using live-view, and other people says it doesn't (which would be preferable as ...
I have a Nikon D300 and in the past couple years I've found that it seems to require sensor cleaning very frequently, something like once a week or more. I've been dry cleaning with a combination of ...
When shooting with Nikon's Live View in tripod mode, the camera uses contrast detection to focus. It does this by using the sensor, which it would seem would raise the mirror similar to mirror lock ...