Depends on who you talk too, as to whether they are the same, or different. They are both Extra Low Dispersion glass. Me personally, I prefer the EP5 over the EPL4 that I have. They are both awesome, but I really like the EP5 characteristics. You won't go wrong with either.
Depends on who you talk too, as to whether they are the same, or different. They are both Extra Low Dispersion glass. Me personally, I prefer the EP5 over the EPL4 that I have. They are both awesome, but I really like the EP5 characteristics. You won't go wrong with either.