Use the cable tie and insert paper shims (maybe a paper cylinder) to
make up the diameter difference on the rearmost element. Just don't
overlap the ends of the piece forming the paper cylinder. Maybe you can
even glue the paper cylinder to the inside of "tie" such that it's
offset the proper amount ot clear the front element.
On second thought, cinching up a cable tie seems to be a pretty crude
exercise on a little part you're trying to hold stable. How about a
narrow strip of springy shim brass to take the place of the cable tie.
Curl it into a cylinder so that it springs back on it own (gently) and
holds all in place.
Chuck Norcutt
swisspace wrote:
> No Chuck you were not mistaken, I was thinking along those lines
>
>
> Now I am about to seperate the elements on the rearmost lens, I need to
> find some way of centering them, unfortunately the rearmost element in
> the doublet is a fraction smaller than the other one, I guess 2 thou
> (can't judge it in metric) around the diameter, I think it could be
> placed fairly accurate by eye, but if I can work out some sort of form
> to hold it then I would be happier, I read of one guy using a cable tie
> when they were the same size.
>
>
> Ian
>
>
> Chuck Norcutt wrote:
>
>>By foot cream I took Swissspace's meaning to be an anti-fungal cream for
>>"athlete's foot". Maybe I was mistaken.
>>
>>Chuck Norcutt
>
>
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