Scratches - front and rear
Dust/fungus check
Loose elements
Separation of elements (white marks)
Lens mount condition
Pin condition
Zoom quality and range
Manual focus performance
Filter thread and hood condition
Diaphragm condition/smoothness/rust
Body scuffs
Rubber grip condition
Assembly screw condition
Smoking residence
Mount feel
Autofocus performance
Focus accuracy/speed (close/far)
Vr performance
Lens sharpness
Aperture performance
Switch function
