Re: [OM] OM-1 -- a different metering question

[Tris Schuler]

As you say, what the "correct" exposure is isn't ever known until the 
film's developed, and even there it's often the case that a compromise was, 
as it turns out, in order. But that ignores this technical point: with a 
manual camera one doesn't "fine tune" the exposure through the shutter 
speed but rather the aperture setting, which effectively offers an infinite 
scale (within the physical limits of the lens then in use).
Tris

> True enough, but as you can never be more than half a stop away from the
> 'ideal' exposure (which of course is a very arbitrary thing anyway), I
> don't think it'll ever matter.  I can't imagine there's any film out
> there that can't tolerate half a stop of over/underexposure.
>
> But, if you're striving for perfection, you can set the aperture between
> stops.  It'll close down to whatever it's set to, whether that coincides
> with a marked stop or not.  Shutter speed doesn't work the same way,
> though, and you can only get the marked values.
>
> Roger
>
> "Daniel J. Mitchell" wrote:
> >
> > (I compared the OM1 against my known-to-be-working OM2, and the OM1 
> thinks I
> > should have the shutter about four times as fast as the OM2, so I guess 
> I'll
> > need to do the battery thing).
> >
> >  Question: as the OM1 only has a fixed number of settings for aperture (at
> > least, most lenses are like this), and a fixed number of settings for
> > shutter speed, doesn't this mean I can almost never get the right exposure?
> >
> >  Say I'm at f8, and the 'perfect' amount of time to leave the shutter open
> > for is 1/400th of a second. There's no way to get that -- I can get 1/500th
> > or 1/250th, but not 1/400th, because the speed dial doesn't have that
> > option. If it happens that the right speed is on the dial, that's 
> great, but
> > it seems like the majority of the time it'll be between two settings.
> >
> >  Presumably this is something I don't worry about, and just try and get as
> > close as I can?
> >
> >  -- dan

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