Re: Autofocus with splitter

[P3D Michael Kersenbrock <michaelk@xxxxxxxxxxx>]

> > I tried the splitter I bought from Reel-3D with my Minolta Maxxum.
> > Neither the auto-focus not the auto-exposure worked properly. BTW,
> > the prints had too much of a messy black stripe in the center.
> > Haven't used it much.
> 
> One reason for the messy black stripes could be the use of too
> small an aperture. The manufacturers usually recommend using
> the lens fairly wide open (f/8 and larger if I recall).

With the Pentax splitter, it's f/5.6 or f/8  "only" as the recommended
range.  One can use anything as needed, but one is trading off, uh,
side effects (like the stripe which usually is not visible in the viewer)
so it isn't recommended to wander too much with the f/stop.

With my Pentax splitter on my Pentax (SF-1) camera, auto-exposure worked
just fine.  Autofocus didn't, but then my "normal" lens isn't an autofocus
lens (only autofocus lens I have for that camera is a slightly wide to slightly
telephoto Pentax zoom lens).

Mike K.


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