As mentioned at the beginning of this review, the Canon RF 600mm F4 L IS USM Lens is compatible with the Canon RF 1.4x Extender and the Canon RF 2x Extender. Lacking an EF mount, this lens is not compatible with the Canon Extender EF 1.4x III and the Canon Extender EF 2x III. With the 1.4x behind it, this lens becomes an 840mm f/5.6 IS lens. 03-18-2022 04:31 AM - edited ‎03-18-2022 05:07 AM. You can't use a Canon extender with any EF-S lens, they aren't incompatible - not all EF lenses will work either - extenders are designed only for specific L-series EF lenses (and a couple of DO ones), one of the reasons they are white. For example, the excellent EF 70-300L lens is not
There's a protective rubber rim around the protruding elements to avoid damaging a lens if an incompatible one is used. It fits about 25 different Canon lenses the last time I looked, with all but two of those being L-series lenses. . The EF 2x III Extender has the Canon Super Spectra Coating to help reduce flare and/or ghosting.
Note: This extender is only compatible with the following RF lenses RF100-400mm F5.6-8 IS USM, RF100-500mm F4.5-7.1 L IS USM, RF400mm F2.8 L IS USM, RF600mm F4 L IS USM, RF600mm F11 IS STM, RF800 F5.6 L IS USM, RF800mm F11 IS STM, RF1200mm F8 L IS USM. Please see the lens and/or camera body manual for full compatibility information with the Amazon.com : VILTROX C-AF 2X II TELEPLUS 2.0X Teleconverter Auto Focus Telephoto Extender Lens Converter for Canon EF Mount Super Telephoto Lens 70-200mm 100-400mm and DSLR Camera 80D 5DII : Electronics

Note: EF 2x III Extender used. (M6 + 2x III + EF 100-400mmL II lens). Contrast issues with longer focal lengths (ABOVE) The pictures above show a very soft image which was taken at maximum zoom using the 2x III extender. The distortion is due to the distance and looking at the safety railing you can see how much the air was moving.

Here is a look at the Canon EF 70-300 L with EF 2x III Extender ISO 12233 image quality. Wide open, the results with the 2x installed are remarkably close to the performance of the 1.4x III, but more sharpness/contrast degradation is apparent - especially in the center of the frame. The 1.4x III takes a wide lead in the image quality race when

I'm convinced the extender isn't what I need. Agree, it is not a good marriage. A tel-con is almost always a bad idea and or just a Band-Aid solution. Almost any native FL tele will be better in all regards. There are a few exceptions but very few and they are all the 1.4x tel-con not the 2x. I was using them with the 70-200 f/2.8 IS USM MkII and the 100-400 IS USM MkII zooms and found that the 2.0 extender degraded the results unacceptably - I was using them with Cano 5D IV, DsR, 7DII and 90D bodies. While I have had no issues using the same lenses on the R5 and R6 bodies I have, I have not considered using them with extenders. Jupio Value Pack: 2x Canon LP-E6NH 2130mAh Battery + USB Dual Charger. $149.25. $199.00. Lenspen - Cleaning Kit. $22.46. $29.95. Buy Canon Extender EF 2X III Teleconverter features EF Mount Teleconverter, 2.0x Magnification Factor, Microcomputer Controlled, Communication Between Lens & Camera, Spectra Coating Reduces Ghosting/ Flare, Protective
Gary, It is BUT even with a very good lens, there is a significant hit to IQ from a 2X extender. I have 1.4X and 2X III extenders and I use the 1.4X fairly often but even with my extremely sharp 200, 300, and 400 primes I just don't like the results with the 2X. They aren't bad but but compared to
Dustproof and waterproof specifications (JIS 2 equivalent) Lens placement and coatings are optimized to minimize the ghosting. Built-in microcomputer in the extenders enables communication between lens, extender and camera. Anti-smear coating (Silky Barrier Coating) used to enhance smear-free state of the lens surface. Specification.
soft focus on Canon EF 100-400 f4.5-5.6L lens w/EOS 7D in EF & RF Lenses 03-21-2023; Extender EF 2x III Compatibility with EF 400mm f/5.6 L USM Lens in EF & RF Lenses 03-09-2023; Are Canon lenses compatible with other EF mount cameras? in EF & RF Lenses 03-08-2023; Canon EOS R7 Blurry Images in EOS DSLR & Mirrorless Cameras 02-20-2023
600/800MM lenses vs RF 2x Extender for Kenya Safari in EF & RF Lenses 12-06-2023; Extender EF 1.4x compatibility with Mount Adapter EF-EOS R in Camera Accessories 12-05-2023; EOS Rebel T3 RF lens compatibility in EF & RF Lenses 12-04-2023; R7 auto-iso on viewfinder display with flash in EOS DSLR & Mirrorless Cameras 12-03-2023
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    • canon ef 2x iii extender lens compatibility