IS Tamron AF 28-300 lens compatible with Canon 5D or 40D?

I have a Tamron AF 28-300mm Ultra Zoom XR F/3.5-6.3 LD aspherical (IF) Macro lens that I use with my Canon EOS 3 film SLR camera. I'm interested in either the 5D or 40D digital SLRs from Canon and am wondering if my lens will work on either of these two cameras.

i have the eos5d and have the tamron 28mm to 200mm lense,it works fine,the 5 has a full image sensor size equal to 35mm camera,no need for adapter and will work fine in all modes.
john.

So did it work? I have the same lens for the Elan7. The usability of my current lenses will determine whether I purchase a canon or nikon digital.

if you buy a camera with full image sensor,the lens will work fine....if you buy a camera with a smaller sensor,it will work just fine.....but if you buy a digital lens for a camera with the smaller sensor and then try it on a full image sensor camera,you will lose the edges of the image....so after all that,yes it should work just fine on your new camera.....why dont you just go down to your local camera store and try out the lens til your hearts content?if you have a canon,stay with it,if you like nikon,both great cameras brands,overprized but great cameras.

johnrb, thanks for the information because it is really helpful. The reason I don't go down to my local camera store is because I'm currently military deployed to Afghanistan. My mission is helping the Afghanistan goverment increase their capability for governance, security, and development. Capturing these moments on film is great, but doing it digitally will be so much better.

Cheers,
photobuff

hi!i can see your problem,you my have a local store but it would not carry the correct type of canon.a positive about being where you are is that you can take images that may become history and also show people what you are fighting for.....just an idea,do you think it may be better to buy the eos5d?with the dust and the heat and the cold it would be a more robust unit for the conditions.good luck,
john.

PB, first off, thank you for your service. Secondly, you may want to take a closer look at how good third party lenses are, not all are created equal. Me, I'm a purist and recommend Canon optics. There are none better save Nikkor for Nikon.

hello,thanks for your comment,as for c for c and n for n,ten years ago i would agree with you one hundred per cent but tamron has improved just so much over the last few years that i have no problem using them...i also think people are going out and buying the wrong lens for the cameras,ie,i tried to put my digital lens from my 350d on my full frame 5d ,result?vignetting around image,as soon as lens from my old eos5 film camera went on,problem solved.....another thing i see is people put a lens from a full frame film camera on a smaller sensor dig slr,lets say a 100 to 300mm which then becomes a 440mm lens at far end.what happens,camera shake,big time,do they ask for help or open a book to find out the problem?no they blame the lens...i dont thing for a moment you are in that class in fact you are one of the teachers that help these people solve their hick ups.so i guess what i am saying is,that its the photographer behind the camera,not really the gear that gets the results,positive or negative.
oh,the lens i love the best........canon 24 mm straight.
yours,
john.

Am I right or wrong? I think that the Tamron Di I will work with the Canon 5D but the Di II lens will not work properly. I mounted a Tamron AF Aspherical XR DiII LD IF 18-200mm 1:3.5-6.3 MACRO Dia62 A14 to my Canon 5D and notice that the image is vignetted if the lens is zoomed out all the way. I think the DiII series of Tamron lenes are made specifically for smaller CMOS chipped camers. What series of Tamron would be made for the full size CMOS chip that is in the Canon 5D? Is it the Tamron DiI series?

Is it possible to use a tamron lens ie, the 28-300 or the 75-300 on an Oly evolt 510