[Screamer]

請交Ching, 教路買lens時要點check支鏡, 要不要帶埋部相機去試???
有咩步驟.....?

Thanks

[Obi-Wan]

bring your own camera
before test on camera, see see through the glass check whether it has dust (a few dust is acceptable)
check also outer surface
mount the lens on your camera, check autofocus at close, infinity etc
if possible bring a flash with autozoom head, when u zoom, the flash head also zoom
check if there is front/back focus
http://photo.net/learn/focustest/