Thanks, Bart. I never noticed before that there are two different 1-4
screens. For plain screens I only have 2-4's and a 1-8.
According to the eSIF the larger circle in the 1-4 screen indicates the
center weighted area of the OM-1n and OM-2n. It makes me wonder if
anyone was paying attention to nameing conventions when the 1-4 screen
is for the 1n, 2n and the 1-4n screen is for the 2sp and 4, 4T. You'd
have thought they might have named it 1-4s or 1-4t.
Chuck Norcutt
bartjew@xxxxxxxxx wrote:
> Just a refinement of this excellent summary:
> The centre circle of the 1-4n shows the correct spot; the circle in the older
> 1-4 (without the 'n') is about twice too large.
>
> Bart
>
>
> Citeren Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>:
>
>
>>Yes, Wayne is correct. When in auto or program mode the 2s uses center
>>weighted averaging of the whole frame. When in manual mode it uses spot
>>mode which sees only 2% of the area. If you use a 1-4 or 2-4 screen the
>>spot metering area is indicated by the small circle in the center of the
>>screen.
>>
>>I usually use my 2s's in manual mode and I treat the mode switch as a
>>metering mode switch. Switch to auto mode to read the averaged exposure
>>and then switch back to manual for more control.
>>
>>If you use program mode you should be aware that the camera cannot close
>>the lens to a smaller aperture than you have manually selected. So,
>>unless you want to deliberately restrict the camera's options set the
>>lens aperture to f/16 or whatever is the smallest aperture for the lens
>>in use.
>>
>>Chuck Norcutt
>>
>>Wayne Harridge wrote:
>>
>>
>>>>I'm testing my new om-2s in room light, auto and manual
>>>>always give the same f/shutter speed except focusing on a
>>>>bulb. In the case of manual I got f=8/shutter=1000, but in
>>>>auto mode they are f=8/shutter=125. Is it normal ? My
>>>>assumption is auto mode use a different light metering
>>>>procedure from the manual
>>>>mode(center-weighted) ?.
>>>>
>>>
>>>
>>>>From my recollection of the OM-2S(P), manual mode is *always* spot
>>
>>metering,
>>
>>>auto is *always* centre weighted average. I think that explains your
>>>observations.
>>>
>>>...Wayne
>>
>>
>>
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