Hallo,
As far as I konow does the OM 10 belong to the OM-cameras with two
independent exposure meters. One meassures the expected shutter spesd for
the viewfinder information. But in Automatic mode the ADM-measurment
is controling the shutter to get the right speed. This may cause the
differences.
Regarding your 50mm lenses, the F-Zuiko version is the older one and
probably not multicoated. While the Zuiko-MC labled one is a lter version,
when Olympus turned to multicoating. The MC-lens may give a better performance.
but don`t worry the Olympus-standarts have always been on a high performance
level.
So it might be difficult to find differences in the results you get with this
lenses.
Frieder Faig
On Wed, Nov 08, 2000 at 10:03:02PM +0200, Conrad Samuels wrote:
> Thanks to the folks who have replied. I'm sorry but I have caused confusion
> by the way I phrased my statements. Let's try again.
>
> The OM10 has new batteries in it. I've also used it for some months now
> mainly on auto and thus far I have never had a dud exposure.
>
> On Saturday evening my wife and I had a couple of friends round and while
> they were sitting outside, lit only by the garden lights, I tried to take a
> shot of the group using available light. I was using ISO400 film in the
> camera and had the 50mm Zuiiko lens at f1.8. I know that slow hand held
> shots are tricky but I did not want to use flash and also I wanted to see
> whether or not the camera would read such a fairly dim exposure. Well the
> indicator led showed 1 sec which was very slow for hand-held but I shot
> anyhow. Surprise surprise: instead of the slow clunk mirror rises- shutter
> opens- clunk mirror drops again, the camera simply went "klunk". Certainly
> not 1 sec. So I shot a second, exactly the same result.
>
> The two shots did come out after a fashion but (as I expected) very dark and
> looking like lamplight (which it was). But when I switch to manual, and
> set the shutter for 1 sec, then the thing works properly and gives what I
> expect is a 1 sec exposure. Also 1/2 sec, 1/4 sec and so on up. But on
> auto it does not seem to want to shoot at less than (what I judge to be)
> about 1/30 sec. The mirror does not stick up. Everything works fine but
> it is like my old Pentax ES-II with the duff circuitry. It won't work below
> 1/60 sec (in this case 1/30). Look, as things are I can use the camera on
> manual perfectly easily even the meter readings are there and are accurate
> enough (compared to other cameras I own). It's just the auto business which
> is abit tricky at speeds slower than 1/30.
>
> Another thing, with the camera there are actually two 50mm lenses. One is
> labelled OM-SYSTEM ZUIKO MC AUTO-S 1:1.8. The other is labelled OM-SYSTEM
> F-ZUIKO AUTO-S 1:1.8. What is the difference between the two? Or is one
> merely a later version of the other?
>
> The zoom is labelled OM-SYSTEM ZUIKO AUTO-ZOOM 1:4 f=75-150mm. Judging
> from the metering this zoom is constant aperture. Am I correct?
>
> Sorry for all the questions but it is very very nice to be able to contact
> so many helpful folks in this manner.
>
> Conrad F. Samuels
> Kirstenhof
> South Africa
>
>
>
>
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