Does anyone know of an extender that will work with this lens &amp; a Canon 7dii? Tamron told me it's extenders only work with film cameras.
1299337
The Canon version of this lens should work perfectly fine with the 7D mark ii
925908
I have a Canon...but I was able to completely extend the lens. I was also pleasantly surprised at how well the pictures had come out.
1988677
Yes, beacause I use with my canon 7D with a len 70-200 with extender. Good video et photos.
364053
I have a 7D. It works with all of my lenses. AF and Aperture controls work great. Although when you get close up manual focus can be a better way to go.
1489917
Hi, I purchased this specific adapter to mount my very old Minolta lenses to my new Canon EOS Rebel digital camera. The company makes a full line of adapters most of which you can purchase here on Amazon. Look for your specific combination at http://fotodioxpro.com/index.php/lens-mount-adapters.html then return here with the part number and get your best deal by ordering from Amazon. Look at http://fotodioxpro.com/index.php/catalogsearch/result/?q=EOS+Rebel+ Remember these adapters are for mounting specific lens types to a different brand or series camera. In order to make the focal length work, there is most always additional glass (lens) in the adapter. This insures that the lens will focus correctly at infinity. ALSO!!! In many if not most cases you will lose some auto functionality like auto-focus, auto exposure adjustments etc, since the old lens never supported these functions. In my case, I am now using four old lenses from my old (1969) Minolta SRT-101 35mm SLR camera on my new EOS digital. But focus and exposure I must do my self. Just be sure that the one you order is specific for 1. your camera and 2. the lens series mount for your other lenses.
2130770
Concur with Rich Maher's comments. However when I use it with my Tamron 18-270 zoom I find that I need to use manual focus as it gets a little "confused" with the extender.
325348
I use this adapter with lenses that already have aperture rings and it works just fine. You just need to keep the aperture on the adapter open all of the way. It might be beneficial to just go ahead and buy this adapter instead of a passive adapter in case you want to invest in newer canon glass.
352399
I have used this lens very successfully with my Canon EOS T3i. I hope that you have the same experience. Bob
2039772
I use a Tamron pro 1.4 extender. Ability to use extender depends on the lens. Most of the EF-S lenses cannot mount on a converter. I use the extender with a 80-200L f4 lens. It will not auto focus on a f 5.6 lens. Hope this helps
2207206
It just so happens that yesterday I tried the 2.0 on my 7D Mark II with the new 100-400 II lens and it lost its AF function. It works fine with the 1.4 extender, though.
2118333
If you go to the canon web site, go to the extender 1.4 description and they list the lens compatability list. You can find out your answer there.
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).
1224661
Just make sure your buying the right Canon Mount in this lense, One more thing, It's going to work but just in manul focus mode. There is another Tamron Model that has a Built in focus motor. The Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Canon Digital SLR Cameras (Model A17E) A little more expensive but with auto focus built in the lense itselfe. Sorry about my broken english. Regards.
1934742
Some old film-era third-party lenses may not be 100% compatible with Canon's DLSRs. Sigma lenses are more likely to have issues though. Note that the 60D and other non-pro Canon DSLRs have a sensor that is smaller than a frame of 35mm film so your lenses will act 1.6 times longer on a DSLR. Your Tamron 28-105mm, for example, will act more like a 45-168mm lens so you will completely lose the wide end on a DSLR. For that and other reasons, I would recommend getting the camera with one of the kit lenses.
677223
Short answer from me is no! I purchased the extender for my 70-200 f2.8 and it works perfectly. I tried it on my 100-400 4-5.6 lens just out of curiosity and the auto focus did not work. I did not play with it much on the 400. Perhaps others have made it work but not me. Hope this helps you...
1960708
While Doug James answered this correctly, I did look up this lens on Canon Lenses. Normally, this is an f4 to 5.6 lens and is an EFS lens for C size cameras. For extenders the widest f-stop that is acceptable is f 5.6. So when you are at f 4.0 you might be able to use this but it would be very limited. You might want to try Canon extension tubes for magnification. The 25mm seems to do best with this lens. Remember though that infinity focusing is generally lost with extension tubes.
1875786
I have the canon 7D, ad it works fine, up to around 20 feet. Also note that if you have a very large lens (which I have a 77mm), the lens it blocks the sensor a bit, so you can't stand on one side of the camera.