"Jim Linch" <[EMAIL PROTECTED]> wrote:
> I went to John & Barbara Gerlach's seminar a while back and he mentioned
> a "filter" or adapter that could be placed on the end of a lens,
> allowing close focus and basically turning a non macro lens into a macro
> lens? ...
Hi Jim,
I think you are looking for a "Close-up Adapter Lens" or "Diopter".
The high quality ones have more than one glass element:
http://www.angelfire.com/ca/erker/closeups.html
To get a more specific recommendation, we will need to know which lens
you intend to apply the adapter. In some cases it might be better
to buy a cheap macro lens.
Cheers
Julian Loke
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