> ----- Original Message -----
> From: "J. C. O'Connell"
> Subject: RE: Bodies: K2 vs. KX vs. LX
>
>
> > Sory, but it's not my "theory", it's a FACT. The film reciprocal
> > error is not linear vs time, nor is it the same
> > for different film types. There is no way the
> > LX is "spot-on" using different films and different
> > exposure times once you go longer than 1 second.
> > For example TMAX 100 is FASTER than Tri-x 400 after
> > a couple minutes. The LX doesnt know THAT!
> > The only way to ensure you get the correct exposure
> > when you get into multi-second and multi-minute
> > exposures is to bracket, bracket, and bracket.
> > 35mm film is cheap, re-shoots are expensive....
>
> Failure of the reciprocity effect is predictable and repeatable. Often, it
> is published in the film spec sheets.
> I use exposure compensation to adjust the camera for reciprocity when
> needed.
>
> William Robb
>
Do you carry around the data sheets for all the different
films you use? I don't. It's much easier and safer to bracket long
exposures.
AE & time exposures dont mix IMHO . BTW, if your going to override
the AE with compensations, you might as well go manual
and be done with it.
JCO
