I haven't received a PM, could you send it again?

I have a Sigma 18-50mm f2.8 EX DC Macro lens for sale. Excellent, near enough immaculate condition. All optics are unmarked, no fungus or internal dust. Pentax fit (obviously!)

I'm open to offers as I keep getting conflicting reports as to what this lens is worth on the used market. It was around £450 new.

I'm selling as I was forced reluctantly to move over to Canon for manual video functionality.

Lens comes in original box and packaging.