Time will tell Bill.I shot 10-12 frames with it on and i used the guide of +3 as the little book recommended.I also took some frames of the same subject without the #25 for comparison. BTW i kept the camera at 400 and opened up lense wize. If the weather is good this weekend(by that i mean cold and snow still on the ground)I;ll finish the roll and take it in.Im curious as to its outcome.
Dave ---- Begin Original Message ---- From: "William Robb" <[EMAIL PROTECTED]> Sent: Mon, 18 Feb 2002 10:05:41 -0600 To: <[EMAIL PROTECTED]> Subject: Re: Re: Filter question ----- Original Message ----- From: "David Brooks" Subject: Re: Re: Filter question > I recently bought a Tiffen #25 Red for the B&W camera. > The sheet said 3 stops.When i put it in front of the > clip on meter of the S3 it dove 3 stops,so it looks > as if that factor/meter relation is 'pretty close'.Time > will tell when i finish shooting this roll of Delta 400 What I found with the #25 filter was that it has a 3 stop deflection on the meter, but also an additional nearly 2 stop deflection on the film speed. I find with FP4+, which I nominally rate at 80, I need to do a + 1 2/3 stop exposure compensation when I use a #25 filter. William Robb - This message is from the Pentax-Discuss Mail List. �To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org . ---- End Original Message ---- Pentax User Stouffville Ontario Canada Sign up today for your Free E-mail at: http://www.canoe.ca/CanoeMail - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

