[MacDV] A Lighting Question

Andrew T. Lynch atlynch at mac.com
Fri May 2 10:52:56 PDT 2003

The camera I use has a mode to lock the exposure.  Perhaps you could 
get the camera set the way you like it, then lock the exposure.


On Friday, May 2, 2003, at 10:46  AM, Steve Robertson wrote:

> Not Mac specific- just a general question on shooting video, upon 
> which some of you may be able to shed some "light."
> Yesterday, I was shooting video of a musician. One performer on stage- 
> playing a very shiny new guitar. I set up a consumer-type DV camcorder 
> on a tripod, about 10 feet in front of (and slightly to the left of) 
> the musician. This camera remained stationary to record the master 
> shot and the master audio. I used another camera to move around the 
> room and shoot different angles.
> The main lighting came from two fairly bright spotlights hanging from 
> the ceiling (roughly directly above the camera position) which lit the 
> performer uniformly on both sides. When I started capturing the video 
> from the tripod mounted camera, I noticed the picture was fluctuating 
> between correct exposure and slightly too dark- seemingly a random 
> intervals. After watching carefully, I finally realized what was 
> happening. Every time the guitar reflected one of the spots. the glare 
> would force the camera to adjust it's exposure setting. When the 
> guitar moved- and the glare disappeared- the camera went back to the 
> correct exposure.
> So far, I haven't come up with any bright ideas to counter this kind 
> of problem. Anybody care to venture a solution?
> Thanks,
> Steve Robertson
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