The first letter refers to the number of groups in the lens, the second the number of elements. Answer courtesy of MinMan. http://members.aol.com/xkaes/slrlens.htm
Scroll most of the way down the page. H=6 and G=7
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.