Gary Edwards schrieb:
>
> Afraid it won't work. Light bleed from the adjacent unmasked exposures
> will contaminate the contrast evaluation.
Yes, I know and division would go straight through the "sweet-spot" the
center of the lens.
My remark was meant to be humorous (it faild obiviously).
>
> Gary Edwards
>
> Richard Schaetzl wrote:
>
> > Tom Trottier schrieb:
> > >
> > > I never thought of masking half the frame to double the amount of
> > > testing, but it's a great idea!
> >
> > Halfframe? I haven´t thought of it, but that would be a great idea,
> > just think: Taking the first exposure with the lens to test and one of
> > this split-image-vignetting filters, ...
Regards
Richard
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