
Originally Posted by
.blank cd
If you look at a spherical lens from the top it looks like this: O
If you turn it on its edge and look at it from the side, it might look something like this: (||)
If you look at an aspherical lens from the top, it'll look lime this: O
From the sides: {||, or (|( or (||
They're generally more expensive, but help with getting warped, discolored edges on pics