On Wed, 18 Aug 2004 21:28:46 -0500, Doug Haseltine
wrote:

On Wed, 18 Aug 2004 12:25:21 +0100, Roy Battell wrote:

Wonderful sequence.

What ISO (effective film speed) did you have your camera set to?

Roy

ISO 1600, sir.

The one thing that came out of the Perseids '04 digital imaging
sessions was that it's necessary to put the pedal to the metal and
open your camera to maximum aperture, use as wide an angle lens as you
can and keep the ISO rating as high as you can get away with.

A number of imager took the film advice literally and imaged at
ISO400. This reduced many capture rates to zero. I missed the
maximum due to cloud and had a tortuous post maximum night fighting
high speed cloud disrupting many images.

Out of 160 frames taken, not one meteor. The reason - reduced rates
and too low an ISO setting ISO800. Tricky call though because the
higher ambient temperatures meant that ISO1600 would have been grainy
for me.

Next time I'll be ready though ;-)

--
Pete Lawrence
http://www.pbl33.co.uk
Most recent images http://www.pbl33.fast24.co.uk/recent_images.html