That's what I did - I cut semi-circular 'rests' to suit the external
diameter of 49mm and 55mm filter rings in a piece of 50mm square
pine and bolted it down. That gave me something to hammer against and
allows firmer strikes. With the lens firmly nested, I used a flat
slip of harder wood, around 100mm long and with a rounded nose
matching the diameter as a tool, striking it with a small hammer and
moving it slightly around the rim with each hit.
I found it very effective with Zuikos which seem to have a fairly
soft nose - some lenses have a much harder filter ring and are almost
impossible.
It is possible to buy a tool, a filter ring vice which has curved
'jaws' and expands inside the filter ring as you screw it out,
reforming the ring. but they're not cheap of course.
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 22/01/2009, at 2:04 AM, Dawid Loubser wrote:
> Well, I shall try with a small dowel and hammer (I do have both) but
> it is a bit
> hair raising to bang the lens 3mm from the front glass element. I may
> go the route of
> making a wooden jig.
--
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