im using canon 40d..need some help people..my tamron 17-50 suddenly stop functioning theres a error code appear on my lcd screen communication between camera and lens is faulty clean the lens contact..(error code 1)
so i did some cleaning and follow the instruction manual but nothing happen...then i fix my back my canon 18-55 thing get back to normal...error only occur whenever i fix back my tamron..plus the viewfinder become dark..i also notice tat my appreture blade not functioning when i try to view thru the lens as well...it remain the same appreture when i zoomin and zoomout manualy...is there anyway to troubleshoot this..thx..
so i did some cleaning and follow the instruction manual but nothing happen...then i fix my back my canon 18-55 thing get back to normal...error only occur whenever i fix back my tamron..plus the viewfinder become dark..i also notice tat my appreture blade not functioning when i try to view thru the lens as well...it remain the same appreture when i zoomin and zoomout manualy...is there anyway to troubleshoot this..thx..