In the intense scenario in which an item is really an infinite length away, S1 = ∞, S2 = file and M = −file/∞ = 0, indicating that the item would be imaged to just one place from the focal plane. 렌즈 케이스를 물기 없이 잘 말린 후 용액을 https://napkinring18518.onesmablog.com/the-basic-principles-of-콘택트렌즈-원리-62065085