Product details:
Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference. Crisp images with little flare are obtained even at the maximum aperture. Specifications Focus Drive: Ultrasonic Elements/Groups: 6/7 Angle of View: 46 degrees Minimum Focus: 17.7 (0.45cm) Minimum Aperture: f/22 Filter (diameter): 58mm Max. Diameter & Length: 73.8mm x 50.5mm Weight: 10.1 oz. (290g)
