Hoya 72mm DMC PRO1 Digital Close Up +3

Hoya Close-Up Filter – Have you ever wished that your lens
could focus closer than it does? Imagine that you could put a
magnifying glass in front of your camera’s lens. Close-up lenses work
in this fashion, and are the simplest and least expensive method of
close-up photography. They are available in different “powers”
(diopters).

A +1 close-up lens will allow you to focus
your lens somewhat closer than it already does. A +2 close-up lens will
allow you to focus closer than the +1. A +3 lens will allow you to
focus even closer than a +2, and so on.

Pro 1 Digital filters are ultra thin, but have a front thread.

Note!
A +1 combined with a +2 will equal a +3, while a +2 combined with a +4
will equal a +6, and so on. The maximum magnification achieved with
these attachments will depend on the focal length of your lens, as well
as the actual close focusing capability of that particular lens.
Depth-of-field is shallow, so use as small an aperture as possible.

Digital Multi-Coated

Digital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections

Black Almite Frame

Filters feature a black matte aluminum, satin-finish almite frame, which reduces reflections

Black Rimmed Glass

These filters are equipped with black-rimmed glass to reduce the chance of light reflecting off the edge

Low Profile Frame

Ultra-thin filter frames, which help to avoid vignetting on super wide
angle lenses, are also designed to hold a lens cap

Knurling Edge Frame

These filters are equipped with a straight knurling edge for non-slip, easy attachment and removal

UV Protected Case

Filter cases are UV protected, which further lengthens the life of filters