Canon POWERSHOT A530 Advanced User's Manual page 132

Close-up Lens 2 50D 52mm
(Sold Separately)
Focusing Range Normal: 17 - 25 cm (6.7 - 9.8 in.) (W / T)
(from front of lens) Macro: 4 - 17 cm (1.6 - 6.7 in.) (W / T)
Thread Diameter 52 mm standard filter thread .2
Dimensions Diameter: 54 mm (2.1 in.)
Length: 10.2 mm (0.4 in.)
Weight Approx. 55 g (1.9 oz.)
Conversion Lens Adapter LA-DC52F (Sold Separately)
Thread Diameter 52 mm standard filter thread
Dimensions Diameter: 55.6 mm (2.2 in.)
Length: 39.1 mm (1.5 in.)
Weight Approx. 14 g (0.5 oz.)
(W) : Max. wide angle (T) : Max. telephoto
,1 When mounted on PowerShot A540
*2 Conversion Lens Adapter LA-DC52F is required when mounted on
PowerShot A540