Remote Shutter Release RS-60E3 for Canon Powershot G3 X G16 G15 SX60 SX50
Canon Powershot G5 X, G3 X, G1 X, G1 X Mark II, SX50, SX60, G10, G11. G12, G15, G16. And, a shutter release button lock is available which for long exposures shooting and continuous shooting helpfully.