I do not have extension tubes. The Canon extenders will not work with the EF-S lens which is why I have the Kenko 2x extender. The bumblebee was two cheap third party extenders stacked and wide open at F/16. I often use EF100-400mm f/4.5-5.6L IS II USM +2x III which autofocuses well on EOS R5. Sometimes I use 1.6x crop mode with the 2x extender
I have Sigma 100-300mm F4 and looking for Canon 1.4x extender to use it on my future Canon tele lens. That's what I found: Photozone web site wrote: The AF 100-300mm f/4 EX is compatible to both Sigma AF EX converters as well as the Canon EF 1.4x II (not sure about the 2x). Or
With recent image sensors, including that of your 5D IV, the 1.4X plus a bit of cropping will result in the same coverage with equal and generally better image quality. Rodger. EOS 1DX M3, 1DX M2, 1DX, 5DS R, M6 Mark II, 1D M2, EOS 650 (film), many lenses, XF400 video. 1 Like. 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. 17. $12000. FREE delivery Fri, Oct 20.
VILTROX Auto Focus 2X Teleconverter Extender Converter for Canon EF Mount Super Telephoto Lens 135mm f/2L,200mm,300mm,400mm,600mm,70-200mm,100-400mm and DSLR Camera 5DII 80D 760D 7D,Black. 77. 1 offer from $159.99. Canon EF 1.4X III Telephoto Extenter for Canon Super Telephoto Lenses. 348.
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canon extender ef 2x compatible lenses