RK,
If it came out back when the OM2sp was released, it probably wouldn't
work now anyway. The reason for this is that reciprocity failure is a
characteristic of the film used and almost all films in use today are
quite a bit different from the ones in that era. The principle would
still be of some use though.
Rand E.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
RK wrote:
>
> A few years ago in "Petersen's Photographic", I came across an article on
> how to take photos by twilight- I believe this issue also carried an
> article on the then newly released OM2SP <--- (OM content).
> Some kind of calculator was mentioned: paper-based twin concentric dials
> where you fed in the ASA and aperture etc. and the dial read out exposures
> compensating for reciprocity failure. The accompanying photographs were
> gorgeous: has anyone on this list used this gizmo? Any other method (as
> opposed to trial and error) for photographing illuminated structures with
> the dusk sky as a backdrop?
> RK
>
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