thanks for that Moose. I MUST file certain threads not just skim read and then
forget them.... So something else I can make...unfortunately no 18mm lens on
the shelf..but I have got a good Tamron 17mm.
Regards
John Duggan,
Wales, UK
--- On Wed, 2/9/09, Moose <olymoose@xxxxxxxxx> wrote:
JOHN DUGGAN wrote:
> > B+H advertise a 49 to72mm step up adapter.....for
> about $6. Could this not be adapted/machined to fit?
> To quote Wayne H from three weeks ago:
> =========================================
> "Really quite a simple operation. Buy yourself a
> 49->72mm step up ring, it probably won't screw onto your
> 18mm because it needs to screw down into a groove and the
> inside diameter of the stepping ring is too small. Use
> the
> lathe to bore out the inside diameter until it fits into
> the 18mm's groove. The stepping ring won't be as strong as
> when it started but probably no worse than the Oly
> part. Depending on the depth of the stepping ring you
> may need to extend the 72mm part so that mounted filters
> don't touch the front element. You can do this by
> getting a cheap 72mm filter and removing the glass and
> mounting this on the step up ring.
>
> ...Wayne
--
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