| Weights and Measurements 
 Dimensions (Approx.): Length: 47mm
 Screw Diameter: M72 x 0.75
 
 Weight (Approx.): 550g
 General 
 Lens: Wide conversion 
 Material: Aluminum, Glass
 
 Optics/Lens  Lens Grade: HG 
 Lens Groups-Elements: 3 groups, 3 elements
 
 Magnification: x 0.8
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