I have used several of these for many years, one in each of my office exam rooms, one in my shop, and one in my home.
1/9/2013 7:28 AM
And have purchased several for family members.
I have found the 2.5 magnification the most useful. But of course the higher the magnification the shorter the focal length.
One caution, wearing the visor obstructs your vision above it and makes it more likely that you might bump your head.
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