At 7:22 PM +1100 2005.01.12, Wayne Harridge wrote:
> >
>> Interesting. I noticed a similar effect with a 24/2, taking a
>> couple of moonlight shots in the Gawler Ranges National Park
>> (nice place) last month. Elapsed time, going from f2 to f2.8,
>> was considerably less than double. This was a 2n on auto, so
>> I thought auto-exposure had timed out, but both slides came
>> out fine. Not exactly scientific though -- I was (gulp)
> > timing by counting out loud.
>
>Of course with moonlight shots who is to know what the "correct" exposure
>is, the OM-2N just seems to "work" in that situation.
Yes, and with Provia 100F a 2n is excellent for much low-light photography as it
seems to be immune to reciprocity effects for about the same range as the auto
timer on a 2n.
>Interesting that you have noticed the same effect as me.
I occasionally do this: make an auto exposure at f2 (on the 24/2)
to get a base timing, then multiply upwards to say f8 or 11
(for better dof, star trails etc).
Useful to know if the first factor isn't 2. Bracketing is a
pain for 10 - 15 minute exposures!
regards
Andrew
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|