Extenders EF 1.4X III and EF 2X III have been newly developed in conjunction with the new Series II Image Stabilizer EF super-telephoto lenses. They can also be used with all previously announced extender-compatible EF lenses, but maximum performance is achieved when they are used with the new 300mm, 400mm, 500mm and 600mm lenses. Canon Extender EF 2x III Tele Extender, USA 4.5 (268) $429.00 Canon Extender EF 1.4x III Tele Extender, USA Canon Extender EF 2X III Teleconverter Used A Condition. Opens in a new window or tab. Pre-Owned · Canon EF · f/2 · Fixed/Prime. 4.5 out of 5 stars. New Listing Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens for Canon This lens has two UD-glass elements and can be fitted on the Extender EF 1.4x II and 2x II. EF 100–400mm f/4.5–5.6L IS II + Extender EF 1.4x III EF 200–400mm f/4L IS Extender 1.4x lens + Extender EF 2x III (built-in extender not used) If you are not using one of these combinations, you will be limited to a single central cross-type AF point. 1) What you should buy depends on how you'll use the extender after the eclipse. If it will spend the rest of its (or your) life on a shelf gathering dust, then the cheaper one makes more sense. But if not, you may get enough enjoyment out of it to justify the newer model. 2) B&H is selling the 2x III new for $429. Shop for canon - extender ef 2x iii lens at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up Canon - EF 16-35mm F2.8L III USM View and Download Canon Extender EF 1.4X III instruction manual online. Extender EF 1.4X III camera accessories pdf manual download. Also for: Extender ef 2x iii. Amazon.in: Buy Canon EF 2X III Extender Lens for Canon DSLR Camera online at low price in India on Amazon.in. Check out Canon EF 2X III Extender Lens for Canon DSLR Camera reviews, ratings, features, specifications and browse more Canon products online at best prices on Amazon.in. New Listing Canon Extender EF 2X III Extender - JUST HAD CANON PROFESSIONAL SERVICE $200.00 0 bids $11.00 shipping 6d 6h Canon Extender EF 2X Teleconverter Lens for EOS EF Mount From JAPAN Excellent++ $119.90 Free shipping Canon Extender EF 2x Teleconverter Lens for EF EOS JAPAN Used Confirmed to work $149.99 Free shipping Only 1 left! GOO1Mvc.