PLEASE BE ADVISED THAT THIS MODEL NEEDS TO BE PRE-ORDERED AND HAS AN ORDER LEAD-TIME OF APPROXIMATELY 2-4 WORKING DAYS. Warranty: 12 Months Manufacturer Warranty Specifications: Lens construction: 12 Elements in 10 Groups, including 2 Aspherical Lens Elements Angle of View: 89 to 53 Degree Closest Focusing Distance: 11.02 inches/0.28m Maximum Image Magnification: 0.13x ( 35mm equivalent Maximum Image Magnification 0.26x ) Minimum Field Size: 133.1 x 100 mm Number of Blades: 7 Maximum Aperture: f 2.8 Wide - f 3.5 Telephoto Minimum Aperture: f 22 Dimension: Diameter 75 x 92.5mm