> The OM-4 manual states an lowest EV of 0 for spot metering (with mirror)
and
> of EV -5 for OTF metering (exclusive mirror) at ASA100.
:Yes, and experience bears this out. You must use OTF for the long
:exposures. Spot mode won't go much past a few seconds.
Well, not to my experience and certainly not according to the manuals. I
have both the OM-4 manual (languages English / German / French / Spanish)
and the OM-4Ti Black manual (English). Both agree that AE control by average
light has a range of 1 min.-1/2000 sec, whilst the AE exposure control by
*spot* measurement does the 'real thing': 4 min.-1/2000 sec. The manuals
disagree however in their EV data:
The OM-4 manual (page A-63) claims -5 EV ~ 19 EV for average light mode
and -7 EV ~ 19 EV for spot mode.
The OM-4Ti manual (page 130) claims +(sic!)5 EV ~ 19 EV for average light
mode and 0 EV ~ 19 EV for spot mode.
All data are given for 100 ASA with a 50/1.4 lens.
I believe the first one. It corresponds with the time values.
This is not the first time I've seen typos in the OM-4Ti manual. Check page
116 for the notorious Spacemen...
Hans
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