EXTENDER EF1.4 x III. カメラボディとEFレンズの間に装着することで、EFレンズの高い光学性能を維持しながら“エクステンダー EF1.4×III”は1.4倍に焦点距離を伸ばすことが可能。. レンズ配置とコーティングの最適化により、デジタルカメラ使用時に発生しやすい Options. 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). Anyone have any experience with this lens and Canon Lens Mount Adapter EF-EOS M with Removable Tripod Mount. Small, lightweight adaptor for EOS M range of cameras. Removable tripod mount. Compatible with all EF and EF-S lenses. € 161.99. Eligible for free delivery. Add to basket. Add to wishlist. 5.0. All will mount crop lenses (EF-s) and also mount full frame (EF) lenses. Scott Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites EF Extender 1.4x III's in-built microprocessor provides accurate transfer of data from the lens and camera every time, everywhere. The perfect partner for all your L-Series telephoto lenses This extender is compatible with most telephoto zoom lenses within Canon's L-series range for great choice of shot and location. The focal length range is reported as 200-800 and the f number as f/9 to f/13. If I take the extender off the lens is correctly recognized. So Canon extenders exhibit a curious behavior when a Tamron 100-400 is attached. Outside of that, outdoors in the daylight the lens works fine autofocus and all. A Canon EF 300mm f/2.8L IS Lens becomes a 600mm f/5.6 IS lens. And, as shown in my Canon EF 2x III Extender review examples above, the Canon EF 180mm f/3.5L USM Macro Lens becomes a 360mm f/7.1 USM Macro Lens. DSLR cameras will continue to calculate auto exposures properly when used with Canon Extenders. EF-S 24mm f/2.8 STM Compatibility with EOS M50 and EOS R6 in EF & RF Lenses 07-12-2023; My Pictures are Horrible with Extender RF1.4x in EF & RF Lenses 03-29-2023; Is the Canon T7 a good choice for first camera. in EOS DSLR & Mirrorless Cameras 10-22-2022; Canon 90D will not focus nor take pictures in EOS DSLR & Mirrorless Cameras 09-18-2022 Either version will work with your lens. The III has better image quality due to less distortion. The III has better AF performance with newer lenses; not the early 70-200. One of the lenses I use with the M6 is the Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary. I'm now considering the purchase of a Canon RF 100-400mm for use with the R7. I can (and do) use the Sigma 100-400 on the R7 (with the EF-EOS R adapter), but I'm thinking of getting the Canon 100-400 to use with the R7. vFZUO8.