Circular or linear polariser?

[Dave Pickett]

Opinions please the linear is cheaper and my lenses have non rotating front lenses, what are the pros and cons of each please?

(Nikon D90 18 - 105 and 70 - 300 lenses)

[puddleduck]

You must use a circular polariser - linear ones are for much older cameras, usually pre-AF.

A linear one will play havoc with AF.

[Dave Pickett]

that'll do then!!! Circular it is, thanks