Never(never!!!) build your camera together if you had to look at your drunk best friend. It dosen't works!!!
Drunken people sometimes piss off and you have to run after them.. at least if these people are half blind..
And than the camera can fall down!
My objective clamped and the aperture is broken.
But i can take photos with it!
Now i have to let repair it but at time i can't.. okay, this shop i've buy my camera wan't let it repaired even though I have insurance on it from them.
i hate them..