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  • Author Author: helium5793
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Lightning strike photos

helium5793

My intention is to make a circuit that can see the increase in brightness of a lightning strike and trigger a canon camera to photograph it before it fades.  I have partially succeeded in this several years ago, but need to look up my current circuit, describe it and see about improving it. 

A list of needs:

appropriate sensor

arduino to control it

camera interface

protection from bad weather.

Portable power.

 

john

Parents

  • Having done lightning photography, I have won awards with some of my shots, here are some things to consider.

    Most lightning lasts about one second and generates repeated strikes at about 38 HZ, which will give you an idea about your timing requirements.

     

    I use the technique where I just open the shudder and watch what happens in front of the camera.

    Use your highest f stop.

    Depending upon the camera you use, you can keep the shutter open up to about 1 minute before you begin to get background lighting show up.

     

    Some rigs I have seen use an RF receiver to pick up the first strike and then open the shudder.

     

    With some inexpensive digital cameras, you can set them up to do repeated exposures automatically. This approach works, but you have to sort through a lot of dark frames, though you could use OpenCV and automatically search for any light instance above background.

     

    Have fun and keep safe. Lightning does kill.

     

    DAB

Comment

  • Having done lightning photography, I have won awards with some of my shots, here are some things to consider.

    Most lightning lasts about one second and generates repeated strikes at about 38 HZ, which will give you an idea about your timing requirements.

     

    I use the technique where I just open the shudder and watch what happens in front of the camera.

    Use your highest f stop.

    Depending upon the camera you use, you can keep the shutter open up to about 1 minute before you begin to get background lighting show up.

     

    Some rigs I have seen use an RF receiver to pick up the first strike and then open the shudder.

     

    With some inexpensive digital cameras, you can set them up to do repeated exposures automatically. This approach works, but you have to sort through a lot of dark frames, though you could use OpenCV and automatically search for any light instance above background.

     

    Have fun and keep safe. Lightning does kill.

     

    DAB

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