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What's New

April 2014 - CamRanger is now capable of controlling StackShot!

January 2014 - Don't want to build a Water Drop Stand? Check this out.

June 2013 - Check out the StopShot Studio - a 12 channel computer controlled version of StopShot

April 2013, Capture insects in flight with our new portable Insect Rig.

January 2013 - Check out our new Water Valve Mounting Bracket for multiple colored collisions

December 2012 - Introducing the Shutter Support System. Completely portable high speed.

October 2012 - Check out our latest one of a kind product - the High Speed Shutter - finally you can capture insects in flight.

August 2012 - Take your StackShot into the field with our new Controller Carrier Also works great with StopShot.

February 2012 - See our new web page on creating Three Drop Collisions with StopShot.

January 2012 - Check out our latest sensor the RangeIR. Designed for birds and wildlife.

Cross Beam Sensor Set

The cross beam sensor adds another whole dimension to your triggering capability. This sensor was designed for triggering on flying insects or birds. For this application having a one dimensional trigger just won't get you that killer insect in flight picture. The cross beam sensor is available in two different versions - Laser and Infrared. Lasers are much more adept at capturing extremely small objects and are better for long distances. IR has the advantage of not having a visible beam. Pictured below is the laser sensor with the diffusers (included) installed on the receivers.

Cross Beam Sensor With Lasers

Two Flavors

The cross beam sensor set is available with either infrared or laser transmitters. Each of the transmitter types has its own advantages depending on what type of subject you are trying to capture. The receivers for both sets are identical with exception of the front element on the receiver. This element is user replaceable. For the laser transmitter there is a diffuser/filter that is placed in front of the receiver. For the IR sensor the front element is left open. If you need both the laser and IR cross beam sets you can do this without purchasing two complete sets. You can purchase one set and then just the transmitters for the other.

Infra-Red Cross Beam Sensor Set
The IR Cross Beam Sensor Set is the best choice for ballistics and indoor studio work. The IR transmitters have an invisible beam that has a larger beam width than the laser transmitters. This larger beam makes it easier to align when working with fast moving projectiles for ballistics. For more information about the ballistics mode and setup visit our how to ballistics page. The IR Cross Beam Sensor Set has a range of about 30cm without the IR lens assembly attached to the transmitters. With the included IR lens assembly the range is increased to about 2m. The IR sensors are not suitable for work in sunlight.
Laser Cross Beam Sensor Set
The Laser Cross Beam Sensor Set is the best choice for outdoor work including trail photography and birds and insects in-flight. The laser transmitters have a beam that can be focused to a very small diameter allowing insects as small as a fruit fly to be reliably photographed. See the example here: Durmphoto. The laser transmitters have a visible red beam that makes alignment outdoors much easier. StopShot has the capability to turn off the beam before the photograph is captured to prevent the red laser dots from showing up in your photographs. The laser sensor set also works very well in bright sunlight. The Laser Cross Beam Sensor Set has a range that is limited more by the stability of your setup than the range of the laser beam. We have tested the lasers as far as 10m apart from the receivers but this is certainly not the limit. If you need to place the laser transmitter and receiver further apart than the 2m cable allows for you can power up the laser transmitter with a Laser Transmitter Battery Pack for each laser transmitter.

Insect Rig w/ Laser Cross Beam SensorsCaptured with the Laser Cross Beam Set

The image of the moth in flight was captured with the laser cross beam sensor set mounted on the front of our prototype insect rig. The whole system, including the camera, External Shutter and flashes are controlled by our high speed photography controller StopShot.

The Ultimate in Flexibility

Both the laser and cross beam sets can be used with all of the cross beam modes listed below as well as ballistics mode. These sensors offer great flexibility for mounting and triggering. There is an indicator light on one of the receivers that will aid in sensor alignment. There are several different modes these sensors can be operated in:

A & B - A and B Both A and B must be interrupted before the output is activated
A -> B - A followed by B A must be crossed before B before the output is activated
B -> A - B followed by A Same as above but B must happen before A
A | B - A or B Either A or B will activate the appropriate output


With this flexibility in triggering you can configure StopShot to catch very specific events. For example, you can trigger only when your target is moving is a specific direction. For the "A -> B" and "B -> A" modes, a confiurable time out may be used to reset the trigger if the second event does not occur. This option minimizes user-intervention and allows you to capture pictures only when your specific conditions are met.

Because we could not possibly come up with a mounting configuration that would fit all of the different applications out there, all of our sensors are designed to be attached to PVC, or electrical conduit tubing for easy design of custom brackets. They are also available with Tripod Mounts (1/4" x 20 Threads). Custom cables are also very easy to make for our system. We use all standard cables that can be purchased at your local Audio Video Store.