EXTENDER EF1.4x II. エクステンダーとは、カメラボディと撮影レンズの間に装着して焦点距離を延長するためのアダプターレンズである。. 装着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×II”は1.4倍に、また“エクステンダーEF2×II”は2倍に EF (full-frame) lenses have a red dot, EF-S (APS-C sensor) lenses have a white dot. The EF-S lenses extend further into the camera body so will NOT mount to an EF TC. I have no problems mounting the Sigma 1.4 and 2.0 TCs to my (EF mount) Sigma 70-200 2.8 for use on my 500D but the TCs are useless on my (EF-S) kit lenses and my 60mm macro. I wouldn't do it. It's already a slow lens and the tele-con will only make it slower f9 to f14 in the case of the 2x. Very slow starting apertures! Since I wouldn't do it, I don't know if they work or not personally. Canon tel-cons do not work on all Canon lenses. Make sure the Rf 100-500 is listed I think you would be better off with the RF 800mm prime compared to the 100-500 with a teleconverter. The prime would focus faster and more accurately. For that price I would take the f/11 fixed aperture.. With either setup, your available AF points will no longer cover edge to edge. You will probab A good 1.4x teleconverter, when used with a Canon L 300mm f/2.8 or 300mm f/4, can outperform a good (but not great) 400mm telephoto such as the Sigma APO (not the APO macro version) lens. The 300 + 1.4 TC combination also roughly equals the performance of a 400mm Canon L f/5.6 lens. FF is of course more expensive, but the price differential Bottom line and why I would prefer one of the 150-600mm super zooms , there is no substitute for having a lens with the actual focal length vs a tel-con. If you think of it this way, 50mm is one power. So, your 200mm lens is equivalent to a 4x power binocular. Adding the 1.4x tel-con and you now have abut a 5x binocular. I was too lazy to find it in the Canon material, but this is from the RF 1.4x TC product page on B&H. Lens compatibility in the description: RF 100-500mm f/4.5-7.1L IS USM (can only be used within 300-500mm range) RF 600mm f/11 IS STM; RF 800mm f/11 IS STM The T CINE Speed Booster ULTRA 0.71x Adapter from Metabones allows a Canon EF-mount lens to be mounted onto a camera with a FUJIFILM X-mount. The adapter's optics maximize the connected lens's apparent angle of view by a factor of 0.71x while providing a one-stop increase for the camera over the lens's aperture range. More Details. Vay Tiền Cấp Tốc Online Cmnd.

canon extender ef 1.4 x ii compatibility