Remote switch is useful to prevent camera shake for super telephoto shots macrophotography and bulb exposures. The RS-80N3 remote switch works just like a shutter button enabling halfway or complete pressing. It also has a shutter-release lock.
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Canon RS-80N3 – Remote Control – 1 Buttons – Cable – Black – for Eos 1 10 1D 1Ds 1N 1V 20 3 30 40 50 5D 5ds 6D 7D D30 D60 M6 R5 R6
$23.37