The Hoya close up +3 filter allows closer focusing distances than your
camera's lens could otherwise manage. Close-up filters are small, light,
easy to carry and require no exposure compensation when mounted directly
on the camera lens.
The +3 dioptre close-up filter provides a maximum subject-to-lens
distance of 333mm with your lens focussed at infinity. Closer focussing
distances are also possible, and the minimum distance will be determined
by your lens. An aperture of f/8 or smaller is recommended for use with
+3 close-up filters.