goodmorning friends on potn...my ef 28-135 is usm just arrived from the canon service center here in greece....(https://photography-on-the.net/forum/showthread.php?t=375621)
...Well the results are .....the ultrasonic motor has been replaced and a problem in the electronics of the lens has been fixed....they cleaned and tested the lens for back-front focus and other issues but the lens is working fine...like new....BUT....it seems that the zooming mechanism is now a little bit lose so when i hold the camera looking down the lens extends by it self without touch it....(can i do something about it alone.. ? ? )...and the when i put the hood on it has no ressistance and it may fall at no time...so i make a little tric by cutting hard plastic from somewhere and stick it into the hood...now the hood locks like new....the lens af works perfectly its sharp...but there is this zooming problem remain....
