Multilayer Coating Design: Lens anti reflective coating design, multi layer digital coating, effectively reduce dispersion. Install the wide angle lens to the front of the lens. Material: Alloy + Optical Glass.
Wide Angle Lens 46mm Wide Angle Lens Multilayer Coating For 46mm Filter Aperture
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46MM 0.45X Wide Angle Macro Lens - Aluminum Alloy + Optical Glass - For
Laowa C-Dreamer 17mm f/1.8 Wide Angle Micro Four Thirds Manual Lens 46mm