I just bought the canon 1.4 EF extender III to attach it to my Super telephoto 400mm 5.6f . Will the Autofocus work on my Canon 7D Mark II?
357025
I believe it will only auto focus up to 5.6 f stop. Sorry I just don't know any more.
357026
I don't have that lens, but as far as I know it should.Actually, now that I have thought about it, your biggest aperture will go to f8. You need to make sure 7d-ii can focus using f8. I believe that 7d could do it after Canon updated the rom, so I would suspect that 7d-ii should also do it. But it is a suspicion, not a statement of fact.
357027
I think so. I don't have a Canon 7D. I have 5D Mark 3's. You will lose one stop of light, so I hope you are ok with f8, and the focus will be a little slower, but otherwise you will be happy.
357028
The EOS 7D Mark II will auto focus at f/8 only at the center focus point. So you will be able to use auto focus with the center point only. You will not be able to use AF with any of the other focus points. This is also the case with the 5DIII and the 1D X. Hope that helps!
266223
Yes. This will work on any canon camera with the EF mount. Keep in mind that it does not have a smart-mount, so auto focus will not work, and you will not have any control over shutter speed in most lenses.
1124387
It works with the 7D, but I'm not sure about the lens. I have the EF100-400 and it only works on manual focus.
1588425
Because Canon dSLR cameras are unable to auto focus if the f-number is greater than f5.6. So, if you have a lens that's f4 and you use the 1.4 extender, then the result is f5.6 and auto focus still work. If you have the same lens that's f4 and you use the 2x extender, then the result is now f8 and auto focus will not work. The only time this is not true is if you're using the Canon 1DX camera body but since most people use the 5DMII or 5DMIII or the crop-sensor bodies, and lenses that typically have f4 in the lens (as do most Canon zooms), then the 1.4 extender is the best solution. I can say that on my 5DMII with my 300mm f4 L lens, the 1.4 extender is a perfect match (and it works perfectly with my 135mm f2 L lens as well).
2024697
It all depends on what you want for focus. It works fine otherwise but for autofocus, it's very poor. Figure on manually focusing if you buy this adapter. Works fine for me but I don't use it with long lenses (because I never use long lenses)
1807982
It will fit the camera, but I don't think it works with a lens that has the EF-S title. You should read a few more reviews. I have a T2I rebel, and my lens is a EF lens and it works fine with manual focus but does not work well with auto focus but the reviews I read told me that.
299361
No adaptor required - the Macro lenses just screw into the front of a regular lens like a filter. The autofocus should still work, although with the Macro lens added you won't be able to focus out to infinity. The Macro set comes in a range of diameters - order the one that matches the filter ring size printed on the front of your lens. Mine takes the 58mm size, but it's a Canon.
1972950
I dont have the same body and lens you have, but I can report success with a 70D body using a Canon 70-200mm f/2.8 using this extender. The fstop jumps to f/5.6 and the autofocus still worked perfectly through the next 2 or 3 stops.
1898462
I would thank so. I use it on my 100-400mm and works great. Im not sure however of the autofocus?
256729
Hello, to be honest I don't know, but I think YES, depends of the Lens you will add (for example mine its Macro which DO NOT retains de autofocus -see manual there are new one it does- ) the adaptor does not affect. I hope this info can help.
468163
No, definitely not unfortunately. It will control the aperture in EF Canon lenses, but not autofocus with my Sony FS700
2207204
It will autofocus up to 8.0f but not above so this extender will only be useful in manual mode with the 100-400. As the other person stated it will autofocus with the 1.4 extender.
1170785
I put it on a Canon EF 75-300mm lens and it works perfectly. Of course you are manually focusing but you can bring things very close and I get lots of comments on those pictures. Good luck!
1086459
Hi, thanks question.This lens can not work autofocus for D3200. Thanks in advance.
551141
I believe there is a list of which Canon lenses work with this extender. I have used it on my 200mm F2.8 L and 400mm just fine. I can hand hold it but on the 400 which is 11 lbs. is just a little much and any movement and it is blurred of course. I would suggest checking the list if you haven't. You can most likely find the list at Canons web site.
305824
Hello, If the adapter allows you to mount the lens to the camera it will work but, you may have to focus manually. I am not familiar with your camera model so, check the owners manual about whether or not it will be able to use autofocus. Great lens by the way. I really liked it when I had my Pentax.
862457
It works really well. Between my friend and I, we have the Canon 6D and 7D and use it all the time with both. Works perfect with auto focus. This is ALWAYS on my camera!