Most of my 1600/3200 shooting is done inside, I use that speed so that I can
get reasonable shutter speeds or DOF. So I typically take meter readings
(either handheld or in-camera) from the representative areas and manually
adjust my exposures like that. Many interiors are evenly lit, which makes it
easy. If you shoot something where the subject is lit by an overhead light and
in the center of the frame, whereas the background is dark, you have to be
careful not to overexpose your subject.
If you're shooting stuff like outside under streetlights or theatre, you have
to find some way to spot meter the subject or get an incident reading of light
falling on the subject.
Repriprocity failure charts can be found on the film makers websites. But the
best method for long, long exposure calculations is to do some testing.
As far as the accuracy of an AE system, you'll have to look at the minimum EV
sensitivity rating for your camera and calculate whether it will work or not.
In general, the OM-2 can expose just about any scene that's short of nighttime,
including moonlight. Remember, it meters exposures by reading the light
hitting the film's surface and then reflected into the photocell.
Skip
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>Subject: Re: [OM] Hyper-speed B&W
> From: Jim Brokaw <jbrokaw@xxxxxxxxxxx>
> Date: Sun, 23 Mar 2003 22:56:09 -0800
> To: <olympus@xxxxxxxxxxxxxxx>
>
>on 3/23/03 7:23 PM, Skip Williams at om@xxxxxxxxxxxxxxxx wrote:
>
>> I agree with Ken on Delta 400 up to 1600. I've given up on Delta 3200 or
>> Tmax
>> 3200 unless I need to go REALLY fast (3200+), which is almost never. 1600 is
>> usually enough, and the flexibility of buying only one film for 400-1600 and
>> one, liquid developer outweighs any disadvantages.
>>
>> Try Delta 400 in DD-X, you may like it.
>>
>> Skip
>
>How do you meter this stuff when you get to 1600 or 3200...? Seems like the
>meter is only going to work down to a certain actual level of darkness, no
>matter where you set the ISO. Then if you're in a room that's darker than
>that, all you get is a guess.
>
>While the OM-2 will do a 2-minute-plus exposure when shooting with
>'normal-speed' films, will it still do a 2-minute exposure at a level of
>darkness that would require 2 minutes for 3200? That would be 5 stops less
>light than a 100-speed film... its going to be pretty dim. Where does the
>meter cut off on the low side in absolute light-level terms?
>
>I'm in the dark about this, hoping for enlightenment... <g>
>--
>
>Jim Brokaw
>OM-'s of all sorts, and no OM-oney...
>
>
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