What should you look for when purchasing a 2nd hand lens?
Focus accuracy and action smoothness, dont be too concerned about small specks of dust as those are unavoidable but look out for dirty/misty structures as that's fungus and it wont go away easily
>>2842847
You should check the credibility of the seller, see feedbacks and if you see something you don't like then leave.
NOT
AN
ARGUMENT
recently bought lens , and it is shitty one. It isnt sharp. You should listen to this guy >>2842851
Make sure the filter threads aren't fucked. Those are easily damaged and easy to overlook.
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
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Camera-Specific Properties: Image-Specific Properties: Horizontal Resolution 72 dpi Vertical Resolution 72 dpi Color Space Information sRGB Image Width 1280 Image Height 720 Scene Capture Type Standard
>>2843144
this
plus, bring a led flashlight with and use it to search for scratches on the lens elements with it, especially in the lens back
