I've not tried that with that particular hood. I think a lot would have to do with the outside diameter of the step ring. Maybe I'll check it out myself as I've had the same thought a few times, but never acted upon it.
Shel Kostas Kweried: > Another question, I am afraid: it turns out I have the 49mm hood for > the Takumar 28/3.5. This uses the same mechanism as the 18/3.5, > whereby you turn the hood against the ring that attaches to the lens > to tighten it. Will this work with a step-down ring, or will there be > too little lip to attach? > > Thanks, > > Kostas