A Angelshare1 Well-known member Mar 11, 2010 #1 Do you need this for the HPX-170? I see a lot of comments about edge to edge sharpness, what does this mean? Is the HPX-170 different because the lens is a little smaller than the 200?
Do you need this for the HPX-170? I see a lot of comments about edge to edge sharpness, what does this mean? Is the HPX-170 different because the lens is a little smaller than the 200?
