RE: Trick for long exposures

2001-05-29 Thread Patrick White
Ayash Kanto Mukherjee wrote: My procedure is like this. I make changes in the ISO setting of the camera and fool the lightmeter. ... Recently, Todd pointed out that some of the older bodies like K1000 or Canon AE1 are unable to measure the light using light meter for high speed films and

RE: Trick for long exposures

2001-05-29 Thread Ayash Kanto Mukherjee
On Tue, 29 May 2001, Patrick White wrote: I've used the same procedure. When the light meter in the K-1000 shut off for lack of light, I punted and used spot meter mode of my PZ-1p body as a light meter since it is more sensitive. Without it, I would have had to guess -- I probably

Re: Trick for long exposures

2001-05-27 Thread Peter Alling
I guess you would have to go back to dead reckoning after a fashion. First off bw film does suffer from reciprocity failure. According to Kodak tri-x requires a 3 stop increase in exposure at an indicated exposure time of 100s and plus an increase in development time. You can find data