Opteka Achromatic 10x Diopter Macro Lens for for Pentax K-S2, K-S1, KP, K-1, K-500, K-70, K-50, K-30, K5 IIs, K-7, K-5, K-3, K-2, K-X, K20D Digital SLR Cameras (Fits 52mm and 58mm Threaded Lenses);

The Opteka Macro Close-up +10 Lens is a close-up diopter lens which allows you to decrease the minimum focus distance on any lens, in turn increasing the effective maximum reproduction ratio of your lens. This lens' dioptric power is enough to simulate true macro-like performance (up to 1:2 or 1:1.5). The advanced two-element Opteka achromatic diopter turns your lens into a true macro. Also known as macro zoom attachments, the achromatic diopter provides lenses with more close-up range and magnification, while maintaining full zoom capabilities - without compromising image quality. They are designed to maintain a flat field and edge-to-edge sharpness without chromatic aberration or image degradation. The hard anti-reflective coating greatly reduces light loss and flare, while also helping to guarantee proper color and contrast. Opteka macro lenses are constructed from high quality HD multicoated glass for increased optical clarity and color fidelity.

It is recommended to use middle apertures, such as f/8 or f/11, in order to achieve corner-to-corner sharpness. Its compact, lightweight design allows anyone to experience the fun and ease of macro photography, without the added bulk and expense. This lens features 58mm front threads to all the use UV, CPL or other filters.

Includes a 52mm step ring for use with 58mm or 52mm threaded lenses.

Specifications
Optics: HD multicoated anti-reflective glass
Construction: All metal body
Front Thread: 58mm
Mount: Fits lenses with 58mm or 52mm filter threads

Includes
Opteka 10x Macro Lens (direct 58mm)
Adapters - 52mm
Lens caps
Pouch
5 year warranty