ADD A QUESTION AND ANSWER:
QUESTION:
I have a question regarding spec 2 and 6. Spec 2 states that the min dimension of the aperture needs to be 1.5" but spec 6 states that you need a 3" microscope slide holder. Do you want the slide holder to be inserted in the stage or do you want it mounted on top of the stage?
ANSWER:
Either method (inserted or mounted on top of the stage) would be acceptable, as long as the result is compatible with observation in an inverted optical microscope, as in the background statement of use.