muskan Posted January 15, 2018 Posted January 15, 2018 What is the difference b/w a simple concave or convex lens and a focal lens?
StringJunky Posted January 15, 2018 Posted January 15, 2018 I'm guessing what you call a focal lens is movable to allow variation in the focal point.
.thumb.jpg.9e0fad6bc827bebc406ae956e2f3bf2c.jpg)
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now