>
>
> For B+W, since the final output will be a print, you should calibrate
> your whole exposure/developing/exposure/printing system to give
> you base+fog whites and as many film stops as you want to fit in
> to Dmax paper black.
>
> as always, imho.
>
> duncan
>
duncan,
this is exactly what fred picker says. calibration not only involves your
camera but your whole system. from the camera, to the film to the developer
that you use to develop the film to the enlager that you use etc.. there are so
many varibles that have to be considered to get that perfect exposure.
basically a very challenging process.
francis
> fdayrit@xxxxxxx on 02/06/98 09:58:12
>
> Please respond to olympus@xxxxxxxxxxxxxxx
>
> To: olympus@xxxxxxxxxxxxxxx
> cc: (bcc: Duncan McRae/QSA/AU)
> Subject: Re: [OM] 357 batteries vs substitutes
>
> i can only agree with this. have been considering getting a densitometer
> that
> will not only help with variability between my different camera bodies but
> even
> between different types of film. problem is that the affordable
> densitometers
> that are available are basically for black and white film and not for
> slides. i
> still haven't looked deeply into calibrating for tansparancies. my om4T for
> example is set at 50 when i use agfa 25 professional black and white film.
> this
> is all best done using the zone system as described by Fred Picker. but
> even
> here there is a need for a densitometer to determine which exposure will
> produce
> zone 1 consistently which is defined as a density of 0.08 to 0.1 above film
> base
> plus fog. i have found the book of Picker(zone VI workshop) and that of
> Davis
> (Beyond the Zone system) to be complimentary to each other.
> francis
>
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