For a skinny lens, the distances S1 and S2 are measured from the item and image into the place of your lens, as described higher than. When the thickness on the lens just isn't A great deal lesser than S1 and S2 or you can find a number of lens https://damienaxuca.bloginder.com/24250156/how-렌즈-네이버-can-save-you-time-stress-and-money