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Photography Question 

Kwadwo Abrah
 

whats the ideal camera for capturing fast objects


whats the ideal camera for capturing fast objects?

for example water coming out of a tap....?


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January 09, 2006

 

robert G. Fately
  Actually, Kwadwo, the setup you need to use for capturing really quick-moving things (like a drip of water in mid-air) requires a good flash unit and a triggering mechanism to make it fire at exactly the right time.

In general, the technique involves setting up in a darkened room, such that the shutter on the camera can be relatively slow (even left open if the room is dark enough) and the illumination of the subject comes from the flash tube. Modern automatic flashes can quench, or turn off, their tubes in as little as 1/30,000th of a second or quicker - much much faster than the fastest shutter speed any mechanical shutter can do.


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January 09, 2006

 

Kwadwo Abrah
  thanks

are these modern automatic flashes expensive. ebay is probably selling them?


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January 09, 2006

 

robert G. Fately
  Well, any fairly new flash with automatic exposure control will do - and they start at about $100US I would guess. Maybe lower - I haven't shopped for one in a long time. The Vivitar 283, which has been around for decades - is an example of this type of flash unit.

Remember, though, that the thing is to set up some trigger mechanism to fire the flash at exactly the right moment. An MIT professor names Harold Edgerton started this whole thing about 50+ years ago, when he captured the gait of a running horse and a bullet piercing an apple using very high speed special lighting. Now you won't be able to do those types of things, but with a normal flash unit you can freeze motion pretty well.

Perhaps if you do a search for "high speed flash photography" or something like that you can find articles about how to make the triggers.


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January 09, 2006

 
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