[52mm AC No.3]
[52mm AC No.4]
[52mm AC No.5]
[58mm MC No.1]
[52mm MC No.10]
[77mm MC No.3]
[62mm MC No.2]
These lenses are close-up accessories attached at the leading edge of the lens, just the way filters are. The shooting distance of each lens can be calculated by the formula "1m /lens number.