Oh, I get it now. You want to use THE 40mm hood, not A 40mm hood. Gotcha.
(Didn't think there was such a thing anyway, but I was afraid to ask.)
If you can find a ring that steps down that far, probably would work.
Walt
--
"Anything more than 500 yards from
the car just isn't photogenic." --
Edward Weston
-------------- Original message from iwert : --------------
> on 30-09-2004 20:40, Walt Wayman wrote:
>
> > Yes, there are such things, but you need to be careful with them. I have
> > only
> > one, a 58-55mm that I use on a 150/5.6 Schneider Symmar with my 6x9/6x7
> > gear.
> > I would hesitate to use one on a so-called "normal" focal length lens, and
> > never on a wide angle. But in the case you cite as your intended use, it
> > might not be a problem.
> >
> > However, 49-40mm is a pretty big drop, and although it could work, I'm
> > guessing nobody makes one like that. I suppose you could find two and screw
> > them together, but why? What's wrong with just using a 49mm hood?
> >
> > I must be missing something.
> >
> > Walt
>
> Maybe I wasn't clear enough: I'ld like to use a 55-49mm step down ring
> combined with the 40mm f2 - 100f2.8 85 f2 hood (which is 49mm screw-in)
>
> Iwert
>
>
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