[robotkane]

我想問下係咪要拎去原廠CAL下佢,同埋大概要幾錢?

[marisalwy]

Do you know whether it is the problem of the lens or camera?

Which camera model are you using?

Have you read the operation manual of your camera?

Have you been fully familiar with the buttons and settings of your camera?

[hanny]

d lens is controll focusing by the machine body with the screw

i think you have to check with the body too

becasue d lens aways no cpu inside

[marisalwy]

D lens has cpu inside

But this lens has no motor for focusing

It relies on the camera's motor for focusing