Having the correct answer here may be less useful than simple
experiments. I'd take the camera to the nearest drug store or Wal-Mart
or wherever sells cheap reading glasses, set the diopter adjustment for
no adjustment and then start trying the various strength reading glasses
moving from weak (+1) to strong (+4) to see what works. If none seem to
work then try adding additional strength from the built-in diopter
adjustment.
Be sure to focus on something in the store that's far enough away that
your minor movements picking and changing glasses won't seriously alter
focus. I would suggest a bright, high contrast target at least 15 and
preferably 20 feet away to make sure your movements stay within depth of
field for an f/2.8 lens. Once you've found the right glasses then
double check at close focus distance. You may be able to walk out of
the store with a $10-20 solution.
Dr. Focus
Mike Lazzari wrote:
> My eyes aren't what they used to be and I'm having more and more trouble
> with manual focus. The digital bodies are much worse than the OM w/ 2
> series screen. My everyday eye glasses use progressive lenses and make
> it particularly hard to focus accurately even after trying to adjust the
> diopter. With a progressive lens I must use the exact same portion of
> the lens each time but cannot tell if I am using the correct zone of the
> eyeglass lens and the camera lens isn't focused or using the incorrect
> zone of my eyeglasses and never seeing correct focus. Just by chance I
> shot some macros (see frog) while wearing my single vision computer
> glasses which are designed for 20"/½m more or less. Focusing was much
> easier! But the computer glasses weren't quite right. So my question is,
> What is the apparent distance to the focus screen of the E510 or any
> other E-body for that matter? i.e. if I were to have a dedicated pair of
> glasses cut just for photography. I think we determined that on the OM
> the distance is about 1 meter.
>
> <http://www.interisland.net/watershed/mike/WalkDogs/Ap09/frog7308.jpg>
>
> Mike
>
> **
>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|
