photomicroscopy

[ltilia]

I would like to ask if anyone has any experience with photomicroscopy. I am looking into a project for my masters and one option is to take high resolution photographs for analysis. The aim is to maximise the resolution possible. I understand that I will need to investigate supply of connections between camera, lens and microscope.

Equipment:
SLR camera, Canon EOS 50D
Macro lens, Sigma
Inverted microscope

Ideas and quesitons so far:

Can I take high resolution photographs by connecting the camera to the port on the microscope?
Can I connect the macro lens to the camera then to the microscope to increase the resolution?
Will a higher megapixel camera give higher resolution?
Is there any reference material I can read re the above questions?

I would greatly appreciate your replies
Liza