Close-up Lenses are the simplest and least expensive method of close-up photography. They are available in different "powers" (diopters).
Features:
These lenses can be used individually or in any combination to achieve ultra-close focus 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 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 +4 lens will allow you to focus even closer than a +2 A +1 combined with a +2 will equal a +3, while a +2 combined with a +4 will equal a +6, and so on
