Overview

Worthy successor to the lauded Canon EF 500mm f/4L IS USM, the new EF 500mm f/4L IS II USM super telephoto lens features completely redesigned Fluorite optics that deliver sharper images with less chromatic aberration and has a lighter weight thanks to magnesium and titanium construction elements. Because image stabilization technology in super telephoto lenses may inadvertently over-compensate and interfere with composing and framing distant or moving subjects, the EF 500mm f/4L IS II USM includes an advanced third Image Stabilization mode (Mode 3) that activates IS only when the shutter button is fully pressed. This allows users to pan fast-moving subjects and then activate IS only when it is precisely required. Additionally, all three IS modes give the equivalent effect of a shutter speed four stops faster, ideally positioning the Canon EF 500mm f/4L IS II USM for professional action photography, from sports to nature. The addition of the Power Focus mode enables smooth focus change when shooting video. Buttons and switches are redesigned for intuitive, deliberate operation, and dust and water sealing keeps the EF 500mm f/4L IS II USM functioning flawlessly in even the most challenging environments.

Features:

• The image stabilizer gives the equivalent effect of a shutter speed four stops faster. Also, a third image stabilizer mode effective for shooting irregularly moving subjects
• Use of fluorite lens elements giving superior definition
• SWC (Subwavelength Structure Coating)
• Using a fluorite coating on the foremost and rearmost lens surfaces allows  adhered dirt to be removed more easily than before
• Ultrasonic motor (USM ) for fast , quiet autofocus
• Manual focusing is available after the subject comes into focus in autofocus mode (ONE SHOT AF)
• An AF stop button to pause autofocus whenever desired
• A power focus mode enables smooth focus change
• A focus preset function for advance storage of focusing positions in memory to allow instantaneous focusing
• Circular aperture for producing beautiful soffocus images
• Can be used with EF1.4x II / EF2X III extenders
• Attachment slot provided for wire-type security lock,located under the cover for the orientation locking knob
• Tight seal structure ensures excellent dustproof and drip-proof performance
• Designed for lighter weight with parts made of magnesium alloy