Amazon.com : 58mm Metal Lens Filter Adapter Ring for Canon SX70 HS, SX60 HS, SX50 HS, SX40 HS, SX30 is, SX20 is, SX10 is, SX1 is, SX540 HS, SX530 HS, SX520 HS
Amazon.com : JJC Reversible Lens Hood Shade Protector & 67mm Filter Adapter Ring for Canon Powershot SX70 HS, G3 X, SX60 HS, SX50 SX40 HS, SX30 is, SX20 is, SX540 SX530 SX520