WTB Sigma 70-200 f/2.8 EX APO

[John Whittingham]

Hi all........

Has anyone got a Sigma 70-200 f/2.8 EX APO in Pentax AF they would like to 
sell? 

Straight sale or part exchange with my Sigma 135-400 APO + cash, any offers 
considered!!!

TIA

John