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 Specification: Lens construction: 18 Elements in 12 Groups, including ED Glass Aspherical Lens, ED Lens and Super ED Lenses Angle of View: 114 to 75 Degree Closest Focusing Distance: 0.25m Maximum Image Magnification: 0.11x (35mm equivalent Maximum Image Magnification 0.22x) Minimum Field Size: 122 x 162 mm Number of Blades: 7 Maximum Aperture: f 4 Minimum Aperture: f 22 Dimension: Diameter 86.5 x 119.5mm