It appears to be Canon EF extenders are only for those costly lenses. Canon says "If you want to use our extenders you need to be worthy enough to buy our costly lenses". Each lens in the compatibility list for both 1.4x and 2x are $1500 and above. Not true. There are plenty of lenses below 1.5k : 135 f2. 180 f3,5. 200 f2,8. 70-200 f2,8. 70-200
a Canon 70-200mm lens with a Canon Extender EF 2X III or Canon 100-400mm lens. If you refer to Canon 70-200mm 2.8L IS II USM + Extender 2x III, then you'd get f/5.6 all over the focal length range vs. the EF 100-400 f/4.5-5.6L IS USM (meaning you'll get a bit more of light at the short telephoto end when using the 100-400) Both combinations are
Diameter x Length, Weight. 2.8 x 2.1 in, 11.5 oz. / 72.0 x 52.7mm, 325g. Note. This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
"Teleconverters are one of those things people buy when they first start in photography because they sound like a neat idea." So true. I would try the cropping
Canon EOS 70D Canon EF 70-200mm F2.8L IS II USM Canon Extender EF 1.4x III Canon EF 40mm f/2.8 STM Canon EF-S 18-135mm F3.5-5.6 IS STM +8 more Reply Reply with quote Reply to thread Complain
It definitely won't work with either 70-200 RF lens. I've seen this at a number of reputable sources. The B&H page for the RF 2x extender has the following for compatibility: RF 100-400 RF 100-500 (only works 300-500, so you have to keep the lens partially extended while using it effectively making it 600-1000) RF 400 f2.8 RF 600 f4
Buy the Canon EF 200mm f/2.8L II USM. The lens is compatible with both the Canon Extender 1.4x and the Canon Extender 2x. including the very sharp 24-70 f2.8 Mkii, 70-200 f4 IS and the 135 f2. EOS 6D + EF 100-400mmL II + EF 2x III Extender. Shot with the Live View LCD.. Using the EF 2x III Extender on the popular EF 135mm f/2 USM lens, I noticed that the 'negative aspects' of the lens were magnified. Specifically Chromatic Aberration. Note that this is a property of the lens and NOT the Extender.

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  • canon extender ef 2x iii 70 200 f2 8