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The Kood A Series +4 Close-up Lens is designed for use with a Kood A Series or Cokin A Series Filter Holder. It offers the ability to achieve macro-like results with camera lenses that can be adapted to those filter holders. A close-up lens is a magnifier that optically decreases the focal length of a camera lens placed behind it. This effect lessens the minimum focus distance between the camera lens and a subject. Magnification can then be obtained by decreasing the distance between the subject and the combined camera lens and close-up lens.
The magnifying power of a close-up lens is indicated by its diopter strength. A close-up lens with a higher diopter number provides more relative magnification and can be combined with other close-up lenses to increase, or fine-tune the macro effect. This close-up lens has a diopter strength of +4. Diopter strengths of +1 and +2 are also available where this close-up lens type's effect becomes progressively stronger with each diopter strength number increase.
Offers macro-like results for camera lenses that are compatible with a Kood A Series or Cokin A Series Filter Holder
Can be combined with separately available close-up lenses with +1 or +2 diopter strengths that allow the desired close-up effect to be varied and modified
Constructed from optical glass for clarity and color fidelity