New Microscopes are generally sold in parts. They have many configurations based on your needs and so are often taylored to the customers needs. 

For example.: They are available with Binocular, Trinocular or Tilting Binocular heads. They can be for Brightfield , Darkfield  as well as Phase Contrast Techniques. Fluorescent attachments with a variety of dichroic mirrors of different wavelengths are available in pre-set cubes, and can be added for reflected microscope users.

                

We can assist you with your choice of microscope model and its set-up including objectives with different quality of resolutions & magnifications as well as any customization for your particular application.