138mm Full Field Close Up Diopter +1/4SKU 68-070238
The Schneider 138mm Mounted +1/4 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 +1/4. Diopter strengths of +1/8, +1/2, +3/4, +1.0, +2.0, or +3.0 are also available where this close-up lens type's effect becomes progressively stronger with each diopter strength number increase.
The Schneider 138mm Mounted +1/4 Close-Up Lens is non-coated, and constructed from water white optical glass. It is 138mm in diameter and mounted for use in third-party or custom filter holders. No front or rear threads are included on this filter's ring or mount.
Offers macro-like results and mounted without front or rear threads for use in third-party or custom filter holders for film and television cameras. Can be combined with separately available close-up lenses with +1/8, +1/2, +3/4, +1.0, +2.0, or +3.0 diopter strengths that allow the desired close-up effect to be varied and modified