Re: [APML] Focus

[Stuart Heggie <stuart.j.heggie@sympatico.ca>]

Bill, thanks for the confirmation. John Boudreau also replied with the
pronunciation "ron key" for which I offer thanks here.

Stuart

William Mattil wrote:

> Stuart Heggie wrote:
>
> >A couple of questions:
> >My lens has an internal skylight filter and a front objective filter (to
> >protect the lens). The determined focus is quite far from the marked
> >infinity point on the lens (not unexpected as a lot of my pics are
> >ruined by soft, bloated stars). Is it possible that the two filters are
> >shifting the focus this much?
> >
> A little hard to say how much is too much. But yes. The focus will shift.
>
> > They are both skylight filters. The
> >internal filter came with the lens and I left it in - the external
> >filter I bought to protect the objective.
> >
> >Second, anyone willing  to offer a pronunciation for "ronchi" so I don't
> >sound like a goof if I ever talk to anyone about these?
> >
>
> Multiple knife edge :^)
>
> Bill
>
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