Back To Basics: Understanding The Use And Limitations Of A Lens Measure

By
I have been thinking about topics that might be of interest to the readers of the Opticians Handbook and I began thinking about a number of “old devices/inspection techniques” still used today that would be fun to write about and perhaps give the reader some new information of interest and the lens measure (lens watch or lens clock) came to mind.

You must sign in to see the full article.