Auto Focus 2.0X Telephoto Lens for Canon, VILTROX TELEPLUS 2.0X Teleconverter Auto Focus Telephoto Extender Lens Converter for Canon EF Mount Telephoto Lens 70-200mm 100-400mm and DSLR Camera 80D 5DII. 16. $15225. $5.64 delivery Mon, Jan 8. More buying choices. High-Quality Optics. The Canon EF Extender 2x III features five groups/nine elements that ensure improved optical performance. All optical elements use Canon’s super-spectra coating, which reduces ghosting and flare to minimize post-processing requirements and a fluorine coating on the front and rear elements makes smudge marks much easier to clean. Canon 7D Mark II w/Canon BG-E16 Battery Grip; Canon EOS 50D w/Canon Battery Grip; Canon SL1; Tokina 12mm - 24mm f/4 PRO DX II; Canon EF 24-105mm f/4 L IS; Canon EF 70-200mm f/2.8 L IS; Canon 70-300mm f/4-5.6 L IS; Sigma 85mm f/1.4 EX DG HSM; Canon EF 300mm f/4 L IS; Canon EF-S 18-135mm f/3.5-5.6 IS STM; Canon Extender EF 1.4x II; Canon Extender The lens also has a built-in hood and a detachable tripod mount. Buy Canon EF 400mm f/5.6L USM Lens at Amazon, B&H, Adorama. 4. Canon EF 300mm f/4L IS USM Lens. The Canon 300mm F/4L is commonly used for Landscape/scenery, Macro photography, Sports/action, Travel, Wildlife, Wildlife photos and more. Viltrox speed booster lens compatible on m50 Canon Extender EF 2x III for sigma at 1.0, canon 70-200 f4 at f2.8 and Canon 135 at f1.4 and canon 40mm at f2.0. RF 100-500 Lens with 1.4 or 2X Extender. 12-03-2022 10:51 AM. Wondering to get either a 1.4 or a 2X extender with the Rf 100-500 lens. Two concerns, one is a lot of wildlife photography is in lower lighting conditions and the 2X drops it to 11/14. Also, was surprised to see that the extender only works 300-500mm (not 1-299mm). Fujiya Camera, Inc. is a Japanese company specializing in camera sales, established in 1938. Canon Extender EF 2x III Mount type: Canon EF Serial No: 2890001394 Manufacturer's warranty：No. Original box: Not included. Instructions: Not included. Case: Not included. Accessories: Lens caps (front and rear)※Scuff marks on the surface of the Extender EF 2x III Compatibility MikeG104 Apprentice 03-18-2022 01:12 AM I have a M50 Mark II with the EF-M - EF-S adapter, so I'm fairly sure I can use the extender with my camera. My question is, is any EF/S lens compatible with the extender itself? The lens in question is the Canon EF 75-300mm f/4-5.6 III Me too 0 Likes Reply All forum topics WyPI4T.