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Crossed-Beam Photogate PCB Kit, unassembled


These kits have been discontinued. See the replacement.

The crossed-beam photogate uses a pair of infrared photogates oriented at right angles to each other. This type of photogate can be used to automatically actuate a camera shutter when an object passes through the beam intersection. This makes it useful for photographing birds and insects. If a camera is centered and focused at the beam crossing, the shutter will be actuated only when the object moves through the point of focus. Click here for more information.


Crossed-beam Photogate

Completed assembly

While triggering a camera is the most common application for the crossed-beam photogate, the circuit can also trigger flash units and wireless transmitters and can be connected to the external input of a Multi-Trigger in order to use the delay timer.

The control box has the following features:

  • On-off switch
  • Internal 9V battery power (battery not provided)
  • Jack for optional AC/DC adapter
  • Smoothly-variable coarse and fine sensitivity controls
  • Jacks for the photogate and output cables
  • LED to indicate when unit is triggered
  • Focus switch for the camera

The CBP2-E kit includes the parts for all control box, wires, and cables. See the parts list here and assembly instructions here.


The CBP2-F kit includes the parts for a 10-inch square frame for the sensors. See the parts list here and assembly instructions here. (We sell the frame kit separate from the PCB kit in case you want to build a frame of a different size. We have successfully tested frames up to 12" square.)


A shutter cable is required in order to use the Crossed-beam Photogate to actuate a camera shutter. In order to trigger a wireless transmitter, see the 3.5mm male-to-male cable.

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

AC/DC adapter

9-V AC/DC adapter100-240 VAC to 9VDC Adapter

This AC/DC wall adapter provides a substitute for a 9V battery to power many of your circuits. The adapter accepts 100-240V input voltage at 50-60 Hz; output is a regulated 9 VDC. The power rating is 10 W. The AC plug is a standard 2-pin non-polarized US plug. An adapter may be needed for some countries.


$14.95 - 100-240 VAC to 9 VDC adapter - A9V

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