Hey everyone,


I just purchased a 50 1.8 II since it was on sale with a freebie lowepro lens case a little while ago. Anyway. I come home today to find the package on my front step.


With glee I hastily open the packaging and remove my new toy from its case.


Once I have attached the lens to my 50D I see that the aperture value is 00. As though I never attached a lens at all. No error codes no autofocus. Nada.


I pulled the lens off, pulled the batteries. Pulled the grip re-attached, wiped off the leads with a cloth... All to no avail.


Luckily my wife has a rebel around and I swapped cameras to find that the 50 1.8 works PERFECTLY while on her camera? I am stunned.


I am imagining this is a contact problem with the leads but, I switch lenses and all the other lens combos work just fine.


Any ideas?


Dave.