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High Speed Photography Circuit

by noagname
Tags: circuit, photography, speed
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noagname
#1
Jan23-09, 04:17 AM
P: 136
I want to take high speed shots. My problem is I don't want to buy an expensive flash, so I thought let me make a sound activated shutter. In other words the moment their is a sound my camera takes a picture. After spending hours on the internet I was only able to find circuits that give me and output of 400 volts. Link 1 link 2 link 3 link 4 link 5

Yes I do know that all of those are meant for flashes but found a way to that output into my camera, I just can't have 400 volts coming out of their.
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brewnog
#2
Jan23-09, 09:54 AM
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What do you mean "high speed shots"? How many frames do you wish to capture per second? The reason it's often done with a flash is because normal cameras can't get anywhere near enough light in (using ambient sources) in the small duration required.
noagname
#3
Jan25-09, 11:10 AM
P: 136
I have a Nikon d80, and I should have made it more clear. I have an external light source with is strong enough for what I am doing, only problem is, is it not meant to be turned on and off at high speeds. "High speed shots" I just meant taking high speed photography, and I don't really care the amount of frames per second.

brewnog
#4
Jan25-09, 01:05 PM
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High Speed Photography Circuit

So you want to use the Nikon's shutter? Surely the Nikon has a remote shutter release input, which would just be a circuit to close?
noagname
#5
Jan25-09, 03:49 PM
P: 136
Yea, you are spot on. The jack on the camera is just a circuit, when to connect one side to the other the shutter goes off. I need to make it so the shutter goes off the moment it hears a sound. Only problem is, is in the 5 links that i gave they all have a giant voltage output.

Once I find a way to lower the voltage. I need to find a way to connect the circuit with the camera. Off of ebay I can get for 4-5$ a wire that goes into the camera.
es1
#6
Jan25-09, 07:41 PM
P: 324
It seems the third circuit you found should be perfect.
http://lullaby.homepage.dk/diy-camera/usoft.html

Just use a resistor instead of the MOC3020 part (or possibly put a resistor across terminals 6 and 4) to do the level translation. Assuming the voltage you need is below 9V, of course.
noagname
#7
Jan26-09, 11:15 AM
P: 136
How strong of a resistor and what does the moc3020 do?
es1
#8
Jan28-09, 12:36 AM
P: 324
maybe you can just use the circuit as is. what are the input requirements of your camera?
noagname
#9
Jan28-09, 05:25 AM
P: 136
voltage requirments, I have no clue. Like I said earlier the camera jack where I control the shutter has 4 pieces of metal, If I stick a wire in and touch wire A, B all to D then the camera goes off. If I touch a wire to just C and then to D the camera re focuses(which I don't care about.)


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