Not to belabor the point but for those interested in Optivisor lens plates:
#2---1.5X---20 inch viewing distance
#3---1.75X--14 inches
#4---2X-----10 inches
#5---2.5X---8 inches
#7---2.75X--6 ...
Type: Posts; User: Ray Kunz
Not to belabor the point but for those interested...
Not to belabor the point but for those interested in Optivisor lens plates:
#2---1.5X---20 inch viewing distance
#3---1.75X--14 inches
#4---2X-----10 inches
#5---2.5X---8 inches
#7---2.75X--6 ...
PLEASE -- PLEASE go for the Optivisor by Donegan...
PLEASE -- PLEASE go for the Optivisor by Donegan Optical. We have used these in our electronics lab for years and I've noted that many Doctors and Dentists also use them. One big advantage of these...