SLR camera lens is installed on why the show also did not install.
Only to buy two days, to sale ah, free maintenance, not afraid
Are you sure the installation is correct? Is it in place?
You can remove the re-installed once, remember that little bit to align, rotate in place, there will be a very small "carbazole" sound, that in place,
if still not, put the lens removed, look at the camera and the fuselage The bayonet contact is not dirty or blocked by things, if there is no problem, it may be broken lens, hurry to find it after sale it
