Useful Link for Nikon 4500 Manual Focussing…
Nikon 4500 Manual Focus Calibration Chart & Depth of Field
is a link to a very nice chart to help with manual focussing on the Nikon 4500. It’s hard to do normally because there isn’t a numerical distance displayed on the screen while focussing. This should definitely help, as sometimes the auto focussing of the camera seems quite quirky.