It would be great if we could simply use any vise and not have to worry about the microscope, but unfortunately that's not the case. This is especially true for people of short to medium height.
The first illustration shows a comfortable sitting position. Many people prefer to tilt the head slightly when looking into the microscope.
The second illustration shows a taller engraving vise. This additional height forces the microscope to be raised. To see through the scope, the user must 1.) stretch his neck or 2.) lower the vise. Since lowering the vise can result in it hitting the legs, this might not be an option. If the engraver raises his chair to reach the eyepieces, this can result in an awkward and uncomfortable posture (ideally your thighs should be parallel to the floor).
Keep these things in mind when selecting a vise for use with a microscope. Measure the working distance of your scope, then add the total height of the vise your considering, and you should be able to tell if it'll work for you.
The first illustration shows a comfortable sitting position. Many people prefer to tilt the head slightly when looking into the microscope.
The second illustration shows a taller engraving vise. This additional height forces the microscope to be raised. To see through the scope, the user must 1.) stretch his neck or 2.) lower the vise. Since lowering the vise can result in it hitting the legs, this might not be an option. If the engraver raises his chair to reach the eyepieces, this can result in an awkward and uncomfortable posture (ideally your thighs should be parallel to the floor).
Keep these things in mind when selecting a vise for use with a microscope. Measure the working distance of your scope, then add the total height of the vise your considering, and you should be able to tell if it'll work for you.