Following per’s comment, a microscope is as important as the boom
stand or flexible arm it’s mounted on, and the bench peg needs to be
lowered so that the eyes remain at a comfortable height for working
through a microscope right there on your bench while sitting in the
same chair.
The wider the field of view through the lenses the better. The depth
of field and the working distance are in proportion to the
magnification.
A good microscope set somewhere between 5x and 10x magnification (a
zoom microscope is the ultimate), mounted on a flexible arm, combined
with a bench peg that is easily adjustable in height; there will be
no going back!
The microscope is half the answer. The other half is setting it up
so that you have room for your hands and tools while looking through
the lenses, and sitting comfortably in your normal position at your
favourite bench peg…which is lowered or raised as needed.
Regards, Alastair