Robert Maichin wrote:
>
> Given the latitude of negative film (about three stops over and one
> under) its only purpose is to make lfe easy for the printer, also give
> you nice repeatable results. In slide film you only have a one stop
> latitude and accurate exposure is critical.
>
> Remember that you are reading reflected light and with a spot meter it
> is your responsibility to find an 18% reflectance subject. The OM4
> biasing is nice because you can find a white or black part and
> register it as a hilite or shadow and get very close - just like the
> Zones on a weston meter!.
>
One special problem with the OM4, the Ti version anyway, is that
the light meter is reacting so fast that the indicator it all over
the scale when measuring off a CRT.
An old-fashioned CDS meter, like in the OM1, will give a quite
reliable reading. Something in the order of 1/30sec F:4 on a
400 ISO film.
Remember to turn off any light source that can cause reflections
in the screen.
... Now, where was it they put the switch for that big, bright
thing in the sky...?
Regards
Lars
--
Lars Haven <mailto:lhaven@xxxxxxxxxxxxx> aka <lhaven@xxxxxxxxxxxx>
"When writing about women, one must dip one's pen in a rainbow"
D. Diderot
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