0.4x High-Grade Wide Angle Lens for Pentax K-r — Compatible with 49/52/55/58/62/67mm Threads

Mounting and compatibility: This 0.4x wide angle converter for the Pentax K-r screws onto the front of your existing lens to expand your field of view. Please verify your lens thread size before ordering — it must be one of: 49, 52, 55, 58, 62 or 67mm. The thread size is normally marked on the lens barrel, on the glass, or printed under the lens cap and is preceded by the diameter symbol. Optical build and finish: Constructed with all-glass, multicoated optics in a sleek black finish, this high-definition wide angle unit is optimized for both stills and video, delivering clear, sharp imagery. Crafted in Japan and supported by a 5-year USA manufacturer's warranty for long-term reliability. Performance characteristics: Designed to work with extreme-speed auto focus and produce very wide panoramic shots with minimal optical errors — measured distortion is 1% and vignetting is 2.3% — so details remain accurate across the frame. Accessories and filters: The converter accepts 82mm filters. Included in the package are the lens itself, a lens pouch, lens caps, adapter rings (49, 52, 58 & 67mm), and warranty documentation.