Is this extender compatible with the Canon EF 70-300mm f4-5.6 IS?
1529199
Unfortunately it is not. It is only compatible with the "L" series lenses. Good luck!
1529200
I have a Canon 70-200 MM f/4.0 L lens and a 300 M f/4.0 L Lens and my 1.4xII extender works on both lenses. I cannot specifically comment on your lens. I believe this or any Canon Extender will not work a on a lens ( L or consumer level) that has at its highest focal range less than 100 MM in reach. I am also not sure if the Extender II will work on older lenses where Extender I's did work . But don't just rely on my feedback I suggest you do research from professional lens review sites, the manufacturer specs and customer surveys from Amazon and B+H -as you are doing now. I do want to add that as one other responder mentioned-- an extender will not work in manual mode. I have a Canon 70-200 MM f/4.0 L lens and a 300 M f/4.0 L Lens and my 1.4xII extender works on both lenses. I cannot specifically comment on your lens. I believe this or any Canon Extender will not work a on a lens ( L or consumer level) that has at its highest focal range less than 100 MM in reach. I am also not sure if the Extender II will work on older lenses where Extender I's did work . But don't just rely on my feedback I suggest you do research from professional lens review sites, the manufacturer specs and customer surveys from Amazon and B+H -as you are doing now. I do want... » Read More I have a Canon 70-200 MM f/4.0 L lens and a 300 M f/4.0 L Lens and my 1.4xII extender works on both lenses. I cannot specifically comment on your lens. I believe this or any Canon Extender will not work a on a lens ( L or consumer level) that has at its highest focal range less than 100 MM in reach. I am also not sure if the Extender II will work on older lenses where Extender I's did work . But don't just rely on my feedback I suggest you do research from professional lens review sites, the manufacturer specs and customer surveys from Amazon and B+H -as you are doing now. I do want to add that as one other responder mentioned-- an extender will not work in manual mode. « Show Less
1529201
No the extender works only in manual mode . I found out from Canon that the extender works in automatic mode only with an f2 auto lens. Canon does not reveal this until you get to a supervisor. Beware.
1970839
No. It will not. There is no room at the base the 70-300 for the extender to fit into.
1707758
None of the EF-S lenses will work with the 1.4X or 2X extenders. Not Bower or Canon. They will not fit the extender, the lens glass hits the extender glass.
1196703
Works with canon EF-S type lens and cameras that use EF-S lenses. Not sure what yours is.
564716
Yes, I am using it with the "EF 24-105mm f/4L IS USM" lens. Keep in mind that autofocus does not work as your lens will keep searching for the focus and it will not find it, so you must use manual focus with it. When you take pictures with this extender, you only have a few inches from your subject before it loses focus.
1528107
This adaptor did not match my lenses. I returned it and never took a pic through it. Good Luck!
1640199
I use the converter with my Canon EF 70-300mm and it works fine but I don't know anything about the L lens.
723200
hello Mr HickeyI would believe so, since it is interchangeable with the Canon lenses. (it is not system specific) all it does is let you get closer to the subject (ring, jewelry, flowers, etc) Close up lenses comes in different magnifications.If you are planning to use this to get up close to far away subjects like birds - you need the "extender" instead. Extenders comes in 1.4X and 2X, which makes your 200mm long-end into a 400mm f/5.6 (you loss two stops of light)hope that help.
1875718
I believe that this is the unit that used on my 70-200 F4. It is very well made, much better than some of the plastic junks out there.As for fitting the 300, I don't know but I can tell you how to find out. Look up the part number for the canon collar for the 300L, then look up the canon part number for the collar for the70-200 F/4. If it is the same number, then yes, this will fit. If it is not the same number, it is unlikely that it will fit.
2135547
It fits all EF lenses, but it doesn't work for me. If it does work for anyone, could you please share with others how you accomplished that??
1264742
Neither the Canon EF Extender 1.4x or 2x will work with that lens. They work only with L primes of 135mm and longer, and the 70-200mm and 100-400mm zooms. The Extenders will not mount the 24-70mm f/2.8L, are you could damage the lens by trying. There are extenders from other companies such as Sigma and Tamron that may work with the 24-70mm f/2.8L, but you may find the image quality disappointing.
2233946
It should. Mine came with the 2x extender, the ring to mount it to my T2i and a collar to mount it to a tripod. It is not the easiest lens to use but if you have patience you can get something out of it. I do think that there were different offers out there and this is the one that I purchasedOpteka 500-1000mm f/8 High Definition Preset Telephoto Lens for Canon EOS 1D, 5D, 6D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel XT, XTi, XS, XSi, T1i, T2i, T3, T3i and T4i Digital SLR CamerasI hope that link is still valid and I hope that helps. It should. Mine came with the 2x extender, the ring to mount it to my T2i and a collar to mount it to a tripod. It is not the easiest lens to use but if you have patience you can get something out of it. I do think that there were different offers out there and this is the one that I purchasedOpteka 500-1000mm f/8 High Definition Preset Telephoto Lens for Canon EOS 1D, 5D, 6D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel XT, XTi, XS, XSi, T1i, T2i, T3, T3i and T4i Digital SLR CamerasI hope that link is still valid and I hope... » Read More It should. Mine came with the 2x extender, the ring to mount it to my T2i and a collar to mount it to a tripod. It is not the easiest lens to use but if you have patience you can get something out of it. I do think that there were different offers out there and this is the one that I purchasedOpteka 500-1000mm f/8 High Definition Preset Telephoto Lens for Canon EOS 1D, 5D, 6D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel XT, XTi, XS, XSi, T1i, T2i, T3, T3i and T4i Digital SLR CamerasI hope that link is still valid and I hope that helps. « Show Less
1640198
Have not tried it on the Canon 70-300L. Works with Tamron SP 70-300 VC, Canon 50 1.4, Sigma 50-500 OS, Sigma 70-200 2.8 OS, Canon 100 2.8L. Basically, has worked with every EF lens I tried. Does not work with EF-S. Sharpness with the Tamron 70-300 @ 300mm (420mm in total) is better than the Sigma alone at 500mm. So, it is a good teleconverter.
2174447
Kathryn, Canon do not list your lens as being suitable to use with either of their extenders. If you need to go longer (well over 300mm) you'd need to find another lens, either zoom or fixed, depending on the type of work you do. Good luck. Jeff
2174449
http://shop.usa.canon.com/shop/en/catalog/lenses-flashes/extenders Go to the link above and click on "Compatability"
1714512
hi,it is compatible with Sony G series 70-200mm, G series 300mm, and 135mm STF lenses
1898465
I don't own that lense but can tel you that from my experience with another canon EF lense 70 - 200mm f/4l it works including AF.This dubler will not work with any EFS lense from Canon due to protruding internal dust ring which comes past the connector ring in all EFS Lenses. I own Sigma 18-250mm f/3.5-6.3 HSM lense which does connect to this doubler but doubler is missing profile for that lense so it can only be used in manual focus mode. Overall it is a very nice doubler especially for the price and size (canon doubler is almost twice the length of this one). Andy