6 months after purchasing the product, the lens malfunctioned.. every time i do snap shot, a notice would appear, "Err 01, communication between the camera and lens is faulty, please clean the lens", then I have to turn off the camera before i can do snap shot again, what am i going to do about it, we do not have tamron center in our place. thank you

SOURCE: will not autofocus

Hey shutterbug72,
According to the manufacturer the first thing you should try is cleaning the lens contacts with an eraser. If that doesn't work you could try removing the battery and reinserting it to reset the camera. It seems to me that if there was a compatibility issue going on you should have seen that from the start. As far as what lens you should buy both Tamron and Canon make very good lenses, but with Canon lenses you shouldn't ever have compatibility issues. I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

SOURCE: Tamron 200-500mm lens on Canon 40D ... when I put

Try gently cleaning the electronic contacts on the lens's mount with an eraser. This will remove any mild oxidation on the contacts. If this doesn't resolve the problem, then contact Tamron and ask if there are any issues using this particular lens with a Canon 40D.

SOURCE: error 01 tamron lens 70-300 mm af 4-5.6 with

Error 01 means that communication between camera and lens is faulty. Try to clean lens contacts.

SOURCE: i have a tamron 70-300mm

This is the kind of error which you always risk these days in buying lenses which are not from your camera manufacturer. Error 01 simply means that the camera cannot communicate with the lens. Canon's protocols are not open standards and third party manufacturers have to reverse engineer to produce something which works. As they're working in the dark, they cannot always arrive at a solution which makes all models suit all Canon bodies.

You have two possible solutions:-

Visually inspect the contacts on the lens and the camera body and if they're anything other than clean and bright then use a clean pencil eraser on them. Be very, very, careful not to let any of the rubber crumbs into the lens or the camera body.

If that fails, visit the Tamron website to see whether the lens can be returned to be updated for other bodies. if it can't then sell it and buy a later Tamron model or better still a Canon one. They may cost more, but the results are better and their resale value is much higher.