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Re: Photos
Mike:
Very good results at f1.4 or 2.8 with 4 sec. time exposures. Be sure to use
Fuji Velvia color slide film --- the color saturation and density are
incredible. You will have to go a a professional photo supplier to get this
film as few stores stock it, but it's worth every nickel in the finished
slide. Always place your camera on a tripod and use the 2 sec auto timer
(delay) if possible so there is no camera motion.
Also, be sure to place a heavy black plastic "cover" over the front part of
the coil so as to block off the strong UV light from the primary coil --- it
will overpower your camera and not allow you to see the detail of the sec
sparks.
Another good trick is to hang a vertical wire high above the coil and approx
4-6 feet away from the coil down to about the primary. The sec spark will
strike this wire and then "climb" like a Jacob's Ladder due to thermal
heating. The climbing arc up this vertical wire makes for very exciting
spark pictures.
PS -- I'm not a Fuji salesman --- I just discovered it works the very best
for spark pictures.
Regards,
Dr. Resonance
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Saturday, February 05, 2000 7:01 PM
Subject: Photos
>Original Poster: "Michael Novak" <Acmnovak-at-execpc-dot-com>
>
>All-
>
> What aperature settings vs shutter speed do you recommend for taking
>pictures of tesla coils? All the pictures I have taken showed weak, thin
>arcs that were blue in color. I'm looking for arcs that are thick and
>purple... Does anyone know how I would achive such effects?
>Thanks...
> -Michael
>
>
>