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Focal Length & Maximum Aperture
Built-in extender at 1.4x: 280-560mm, 1:5.6
25 elements in 20 groups (incl. 1 rear filter)
Built-in extender at 1.4x:
33 elements in 24 groups (incl. 1 rear filter)
Diagonal Angle of View
Built-in extender at 1.4x: 8°50'-4°25'
Closest Focusing Distance
Max. Diameter x Length, Weight
Compatible Supplies & Accessories
Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 200-400mm f/4L IS USM Extender 1.4x that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store
Drop in Gelatin WII 52MM
A holder for screw-type filters, for use with rear mounted drop-in filters. Filter fits select lenses with a 52mm diameter, please see link below for compatible lenses.
FILTER DROPIN PL-C WII 52MM
Filter Drop in Screw Holder 52II
Lens Cap E-145C
Lens Case 200-400
Lens Case Kit includes lens case and strap.
Lens Dust Cap E Rear Cap
Rear lens cap for all EF type lenses, lens extenders, and extension tubes. Used to protect the rear glass element from dust and scratches.
Lens Wide Strap B
Experience the EF 200-400mm f/4L IS USM Extender 1.4x
Go deep inside the high-performance super-telephoto 200-400mm f/4L USM Extender 1.4x lens and discover the impressive features and details that make up this highly versatile lens.
† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.