No such thing as a small microscope
that will offer the features needed for serious work. If you want sonmething with any kind of performance, it will necessarily be a full-sized microscope.
You choose the type of microscope
based on the specimens observed. No one microscope
can do it all. What you describe will require two types of microscopes
. Large specimens such as sprouts will require a stereo microscope. Small specimens such as proteins will require a compound microscope
and a very specialized compound at that, not to mention the education and expertise to study such specimens. Not a subject for beginners.
You can add a camera to most microscopes
, depending on the camera in question. For instance, you can add a microscope
camera such as the Konus
to nearly any microscope.
Here are some articles which will help you with the basics.
For a beginners guide on how to choose your first micrscope, see my article, Microscope Guide for Beginners
For the basics on what makes for a good student microscope
and more, see my article, Microscopes for Students