Only certain Canon lenses are compatible with the Canon EF 1.4x II Extender. As a rule, but subject to change, the compatible lenses include fixed focal length L lenses 135mm and longer, zoom L lenses at least 70mm on their wide end and Canon TS-E Tilt-Shift lenses. This extender does require a full frame lens (not APS C sensor only lenses). This converter does work on cameras with the smaller sensor, it's the lens that has to be capable of full frame. Within its limits, it works well on both my Canon T3i & 60D with the 70-200mm f4L & Tamron SP 70-300 f4.0-5.6. 1-770-333-4200. Description. The Canon 1.4X EF Extender III is a professional grade teleconverter designed exclusively for use with select Canon brand L-Series lenses (focal lengths over 135mm). Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates incorporates careful lens placement and state of the art Canon's Extender EF 1.4x III and Extender EF 2x III multiply the focal lengths of most Canon normal, macro and telephoto lenses by a factor of 1.4x and 2x respectively. Both extenders contain built-in microcomputers that provide seamless functionality between Canon (D)SLRs and lenses. Other features found on and within each of these new tele There was enough difference to warrant the double the price for me since there are 2 more mk II lenses I want . -- 1st it's a hobby 7D gripped XTI gripped Canon - efs 10-22 , 17-55 , ef 18-55 IS EF 28-90 , 28 @ 2.8 , 35 2 , 50 @1.8 , 50 1.4 , 28-135 IS L's 35-350 , 70-200 MK II IS Quantaray lens 70-300 macro Sigma 135 - 400 , 180 MACRO Extender EF 1.4x II_This tele extender can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, 70-200 f/4.0L IS USM, and 100-400 f/4.5-5.6L IS zoom lenses. Superb optically, it preserves the image quality of the lens it's mounted to and TW6c. There was enough difference to warrant the double the price for me since there are 2 more mk II lenses I want . -- 1st it's a hobby 7D gripped XTI gripped Canon - efs 10-22 , 17-55 , ef 18-55 IS EF 28-90 , 28 @ 2.8 , 35 2 , 50 @1.8 , 50 1.4 , 28-135 IS L's 35-350 , 70-200 MK II IS Quantaray lens 70-300 macro Sigma 135 - 400 , 180 MACRO Options. 05-13-2023 06:35 PM. I did some testing today comparing the Sigma 150-600 C to the RF100-500 +1.4x extender. With both lenses zoomed all the way (600mm and 700mm respectively). I set the Sigma lens at F/8 and the Canon at F/10, at 1/1000. I adjusted the ISO to compensate for the Canon's smaller aperture. Physical differences. Since the introduction of the 800mm f5.6, Canon changed their off-white color of their telephoto lenses. All the new MKII IS super-tele lenses from Canon feature this new coloring so the MKIII extenders have been updated to match both the color and also the very slightly smoother design aesthetic of these lenses. SKU: 5959400. (334) $1,399.99. 1-18 of 30 items. 1. 2. advertisement. Shop for canon ef 1.4 x ii extender at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. I have been using the 1.4x extender with various models of the 70-200 f/2.8 along with other telephotos for 25 years. I love the 1.4x and hate the 2x. I have seen almost negligible change to an image with the 1.4x on an L lens and no difference in autofocus speed. The RF 70-200 f2.8 or f4 is not compatible with the 1.4 or 2.0x extenders. Your current choices would be: RF 100-300mm f/2.8 L IS USM - TC's can be used with full focal length 100-300. RF100-400mm F5.6-8 IS USM - TC's can be used with full focal length 100-400. RF100-500mm F4.5-7.1 L IS USM - TC's can be used 300-500mm only. RF400mm F2.8 L IS USM.

canon extender ef 1.4 x ii lens compatibility