Please see the following chart for lens compatibility with the EF 1.4 x III and EF 2 x III extenders. Camera / Extender Compatibility Chart for the EF 200-400mm f/4L IS USM Extender 1.4x Camera/Extender Compatibility Chart EF 1.4 x III and EF 2 x III extenders are recommended for use with EOS Digital Cameras.
Extender EF 1.4x compatibility with Mount Adapter EF-EOS R in Camera Accessories 12-05-2023; EOS 90D & EF 100-400mm - Auto Focus doesn't work with 2x extender in EOS DSLR & Mirrorless Cameras 11-25-2023; Mount Adapter EF-EOS R question about compatibility with Extender EF 1.4x III in Camera Accessories 11-14-2023
Canon does NOT list compatibility with its teleconverters and TS-E lenses. They have electronic aperture control and are MF only. -Demetrius. Current Gear: EOS 5D Mark IV, EF F/2.8 Trinity, EF 50mm F/1.8 STM, EF 85mm F/1.8 USM, 470EX-AI & 600EX II-RT. Retired Gear: EOS 40D.
Options. 01-05-2014 12:48 AM. Canon "Extenders" are not compatible with many lenses because they have a protruding front element. Yes, using an Extension Tube will allow you to use a Canon 1.4x or 2x "Extender" (teleconverter) but then you will not be able to focus on subjects very far away. Extension Tubes allow you to focus very close for The image below was captured with a Canon EOS 5D Mark III + EF 2X III + Sigma 120-300mm f/2.8 DG OS HSM Sport. This one used an EOS 5D Mark III + EF 1.4X III + Sigma 120-300mm f/2.8 DG OS HSM Sport: Both of the following images were captured using a Canon EOS 6D + EF 2X III + Sigma 120-300mm f/2.8 DG OS HSM Sport. ¹ The obverse is not true. Thanks for the response. Have 5D M III & using 300, 2.8 IS also 70 - 200. 2.8 IS. Have Extender 2X II & was considering adding Extender 1.4x III to get more. Am not sure & can't get any answers as to whether the II & III series are compatible. Was not aware or using the extender between them but makes sence.
The same TC works fine with a Canon 7D and 5D Mark II. Update: If Autofocus Microadjustment (AFMA) is disabled via menu on the newer cameras, the older Kenko TC will work with them. Unfortunately, AFMA is more critical with longer focal length lenses and lens/TC or lens/extender combinations than with wider angle lenses.
12-18-2023 06:28 PM. None. It's not compatible with wide angle lenses. Even if it worked, it would only give you a 20-34mm equivalent lens. Refer to Instruction Manual for a table on usable lenses. --. Ricky. Camera: EOS 5D IV, EF 50mm f/1.2L, EF 135mm f/2L. I wouldn't expect the extender manual to deal with this. The extender doesn't know what lens is attached to it. For a comparison, I checked the manual for a larger-aperture EF 400 f/2.8 L USM to see what it says: "AF is possible with an extender, BUT..AF speed will become slower to retain proper control". This is straight from the manual. The TS-E 17mm F/4L IS NOT COMPATIBLE with any of Canon's teleconverters. All of their TS-E lenses are INCOMPATIBLE. -Demetrius. Current Gear: EOS 5D Mark IV, EF F/2.8 Trinity, EF 50mm F/1.8 STM, EF 85mm F/1.8 USM, 470EX-AI & 600EX II-RT. Retired Gear: EOS 40D.

Then, in a major firmware updateannouncement for the Canon EOS-1D X, Canon included the 70-300 L and Canon EF 1.4x III Extender combo on a compatibility list. Intrigued, I did more experimenting. What I learned is that the 70-300 L's rear element retracts into the lens far enough that, at about 250mm, there is enough clearance for Canon

The extender has a protruding part, that fits into several (limited number) langer lenses (that is wat it has been designed for!); the 24-105 rear lens element si simply too close to the edge of the lens: it will clash with the protruding lens element of the (Canon) 1.4x. Only way to use an extender/converter on the 24-105 is to get a non-Canon
Always read the compatibility list before you buy a tel-con. The 2x is a bad idea even on lenses it is compatible with. IMHO, of course.
Key Features. EF-Mount Lens/Full-Frame Format. Aperture Range: f/5 to f/22. One FLD Element, Three SLD Elements. Super Multi-Layer Coating. Show More. Offering an impressively versatile range with a portable form factor, the Canon EF-mount 150-600mm f/5-6.3 DG OS HSM from Sigma is a Contemporary-series telephoto zoom characterized by its iMoNV.
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    • canon extender ef 1.4 x iii lens compatibility