http://www.nikonchat.com/nikon-microscopy/

lol u can take a photo like this with the Nikon D40?
as this photo of a stem of a flower with the prevalence original that came with the camera so no I have to buy a new prevalence can only be good and take a good photo http://www.microscopy-uk.org.uk/mag/imgjun06/Photo03.jpg past??? I promise lol
You can do this with the original objective. You need a macro lens or maybe near the filters would be in addition to its original purpose.
Delaying cell death in confocal microscopy