Hi, so I am trying to remotely trigger DSLR camera (Canon 5D) with Arduino. Impulses from arduino I am sending to optocoupler IL300. This optocoupler then switches camera shutter connected to Arduino via Camera remote connector. Check circuit connection in attechment. So, what I want you to help m…

Arduino remote shutter for DSLR camera - need help with choosing right resistors

system April 29, 2014, 9:38am 2

10mA and 1.25V.

(5 - 1.25) / 0.01 = 375
Next preferred value = 390 ohms