Re: IR and night photography

["a5950560" <D.Crawley@xxxxxxxxxx>]

It has been my experience that using a B setting for any 4 hour exposure
runs the risk of leaving you with drained batteries if you happpen to be
using any form of electro-mechanical style shutter. The preferred option for
me, at least, is to use a camera with a T setting when employing long
shutter times.

If you do not have a T setting on your camera ( I acknowledge  most modern
cameras seem to have omitted this useful option) then I suggest that you
use a fully mechanical camera where battery power is not employed to keep
the shutter screen open during the 4 hours Joe has recommended.

Sorry to intrude into your discussion. If I was a computer literate person I
would have tried to respond privately thus being well mannered.  Perhaps you
can tell me how  I can  respond privately for next time so  do not have to
write such marginally relevant material for all subscribers to read.

Cheers

Des

----Original Message-----
From: JoePaduano@xxxxxxx <JoePaduano@xxxxxxx>
To: infrared@xxxxx <infrared@xxxxx>
Date: Tuesday, 25 May 1999 4:29
Subject: Re: IR and night photography


>Dan, use a yellow filter and a setting of f/16 on the bulb setting for
about
>a 4 hour night exp. Rate the film at iso200. Good luck
>                  Joe
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