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: 6 Elements in 6 Groups Angle of View: 34 Degree Closest Focusing Distance: 0.146m Maximum Image Magnification: 1.0x (35mm equivalent Maximum Image Magnification 2.0x) Minimum Field Size: 17 x 13 mm Number of Blades: 7 (Circular aperture diaphragm) Maximum Aperture: f 3.5 Minimum Aperture: f 22 Dimension: Diameter 71 x 53mm