Re: ricoh closeup adapter

[Tom Deering <tdeering@xxxxxxxxxxxx>]

>  +2 dipoters means that if the camera is focused
>at infinity then the CU lens will bring a subject
>at 1/2 metre in focus. (ie 1/diopters).
>
>  If you focus the camera to minimum distance you
>gain about another diopter so the focus point is
>now about 1/3 metres.


Wow.  Good job.  My estimates were 24 inches and 18 inches.  Pretty close!
(I didn't mention that because the focus on this camera appears off.  I
have four of these cameras here, and none of them is in shooting condition.
:^) )