> Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>
> Still, it bothers me that the thread pitch seems extremely fine for a
> filter thread and it especially bothers me that this doesn't seem to be
> documented anywhere.
>
Series threads may be a finer pitch than the .75mm used for "normal" filters -
anyone know for sure ?
> Furthermore, while it might be convenient to have
> another filter mount ring for use with a reversed lens there's no reason
>
> you can't have your 49mm filters installed on the front of the lens even
>
> though the lens is reversed. The bellows connecting ring fits easily
> over my 49mm filters.
>
I suppose there might be some reason to have the filter at the other end of the
lens, can't think what for though.
...Wayne
Wayne Harridge
http://lrh.structuregraphs.com
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