Joy,
You may also be referring to the hyperfocus scale on the lens. It is
located on the silver ring the also contains the push button to unlock the
lens. The scale when lined up with the feet or meter scale on the focus
ring, indicates the depth of field which will be in focus at a certain
aperture. Hopefully others here will give a more eloquent description.
Derek
> -----Original Message-----
> From: owner-olympus@xxxxxxxxxxxxxxx
> [mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of Brian P. Huber
> Sent: Sunday, April 18, 1999 7:47 PM
> To: 'olympus@xxxxxxxxxxxxxxx'
> Subject: RE: [OM] Hello
>
>
> Joy,
> I don't own an OMG, but if I recall correctly, the OMG camera has
> one dial.
> The dial is on the front of the camera. The other dial you are likely
> speaking of is the aperture dial on the lens. If you remove the
> lens, that
> dial should come off with it.
> The dial (ring on the lens) will affect the aperture, the
> smallest number,
> probably 1.8 indicates the full open aperture. The largest number
> indicates the smallest aperture. Think of the numbers as if they were
> fractions like:1/1.8 compared to 1/16.
>
> The dial on the camera body indicates shutter speeds ranging from 1/1000
> second to 1 second exposure time.
>
> As you compare the two rings you can see that if you change one
> ring in one
> direction and move the other ring in the same direction, the "relative
> exposure" would remain the same. This is part of what your daughter will
> be learning in her class.
> Since you got this group's email address, likely one of the links to this
> address was the Olympus info site, especially the site run by Lee
> Hawkins.
> (http://www.astro.wellesley.edu/lhawkins/photo/photo.shtml) There is a
> wealth of information there and it will also point you to other
> great sites
> containing OM information.
> Good luck, come back often.
> Brian Huber
>
> -----Original Message-----
> From: Jyeh456@xxxxxxx [SMTP:Jyeh456@xxxxxxx]
> Sent: Sunday, April 18, 1999 6:08 PM
> To: olympus@xxxxxxxxxxxxxxx
> Subject: [OM] Hello
>
> Hi,
> I am trying to find out some information about the OMG camera
> that I have.
> Over several moves the booklet was lost. My daughter is taking a camera
> course in High school... There are 2 dials for the apertures...the one
> closest to the camera also has the buttons to remove the lens...is that
> usable? or are those aperture numbers just for reference? I would
> appreciate any help.
> Thanks
> Joy
>
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