Google should update the definition.
--
Michael
An Olympus OM system fans
2007/6/22, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>:
> That's the original meaning before autofocus errors started dabbling
> with the dictionary.
>
> Chuck Norcutt
>
> Richard Ociepka wrote:
> > Google comes up with:
> >
> > Back focus is a term used to describe the relationship of the distance
> > of the lens to the image device. This distance is critical to maintain
> > the proper depth of field through changing focal lengths and varying
> > light conditions. The correct back focus is normally achieved by
> > adjusting the image pick-up device on the camera itself.
> >
> > The distance from the rear-most portion of the lens element to the image
> > plane. It is important to adjust the back focus correctly in order to
> > obtain the best image. Certain lenses come with a back focus adjustment
> > mechanism, while others do not. Also, most of the cameras incorporate
> > back focus adjustment, if it is not available on the lens side.
> >
> > Dick
>
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