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Opto Switch 2 (assembly required)


The Opto Switch 2 provides a way to extend the capabilities of the Delay Timer, Multi-Trigger 3, or Multi-Trigger 3+ to control additional cameras or flash units. The Opto Switch 2 is a significant upgrade of the earlier Camera Opto-Switch. Not only does the Opto Switch 2 eliminate all mechanical switches, but it also has the ability to control two cameras or flash units and can be chained with additional Opto Switch 2 units in order to trigger even more devices. The Opto Switch 2 doesn't have an internal power source but is instead powered by a pulse output from a Delay Timer, Multi-Trigger 3 or Multi-Trigger 3+. The Opto Switch 2 can also be used with legacy triggers that have pulse outputs.

Opto Switch 2

Opto Switch 2

The Opto Switch 2 kit includes all the parts for the control box as well as a cable and adapter to connect to a Delay Timer, Multi-Trigger 3 or Multi-Trigger 3+. Assembly is required. Experience in wiring, soldering, and troubleshooting electrical circuits is assumed. See the links to the right for more information.


Parts list

Assembly instructions

$16.95 - Opto Switch 2 kit, unassembled

If you're connecting the Opto Switch 2 to a Multi-Trigger Breadboard, you'll also need the adapter cable kit below.

$1.00 - Breadboard adapter cable kit

The shutter cable for your camera is purchased separately. See the options below.

Shutter Cables


We provide shutter cables for most camera makes/models for use with our triggers. When you order a shutter cable, we include an extension cable and adapter, if needed, to convert the cable for use with the 3.5mm stereo jack on our triggers.


Select your camera make/model below and note the corresponding ID. If you don't find your model listed, compare the socket on your camera to the photos below. The photos will enlarge by clicking on them. If you are still unable to determine the type of plug that you need, please contact us. If you already have a shutter release and want to convert it for use with our triggers, this page may help.


All shutter cables, which include extension cords and adapters (if needed), are $12.95.

Plug ID

Plug ID

Camera Make/Model Plug



Canon EOS Rebel series, T/X series, EOS 60D, 70D, 100D, 300D, 350D, 400D, 450D, 500D, 550D, 1000D, Powershot G series; Pentax K10D, K20D, K3, K5, K7 RS-60E3 plug



Canon EOS 5D Mark II/III, 10D, 20D, 30D, 40D, 50D, D30, D60, 5D/6D/7D, 1D/1DX, 1D/1DS Mark III, 1D Mark III, 1D Mark IV RS-80N3 plug



Nikon D1/D2/D3/D/D4/D5 series, D100, D200, D300, D300s, D500, D700, D800, D800E, D810, D810A, D850, F5, F100, F90, F90x; Kodak DCS-14N; Fuji Finepix S3pro, S5pro Nikon MC30 plug



Nikon D90, Df, D610/750/3100/3200/3300/5200/5300/7100, Coolpix 7700/7800, Coolpix A Nikon MCDC2 plug
S1 Sony Alpha A99, A100, A200 ,A290, A300, A350 ,A380 ,A390, A450, A500, A550, A580, A700, A850, A900SLT-A33, A55, A65, Minolta Maxxum 5D, 7D, 7, 9xi, 7xi, 5xi Sony S1 plug
S2 Sony ILCE-7 / A7R / NEX-3NL / A5000 / A6000 / A58 / A3000 / HX300 / RX100II Sony S2 plug
CB1 Olympus E1, E3, E5, E10, E20, E300, C7070, C8080 Olympus CB1 plug
UC1 Olympus E620/E520/E510/E420/E410/E400,
SP-510UZ / SP550UZ / SP-560UZ / SP-565UZ / SP-570UZ / SP-590UZ / SP-810UZ
XZ-1 / SZ-30MR / SZ-20/SZ-11 /
E-P1 / E-P2 / E-P3 / E-PL1 / E-PL2/E-PL3 / E-PM1 / E-PM2 / E-PM3 / E30 / EM-5 / EM-1
Olympus UC1plug


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