Have just taken delivery of a 300d together with a 100-400f4.5-5.6 IS USM lens and EF 1.4 Extender. The camera works fine but when the extender is attached to the lens it won,t auto focus. The camera shop have tried two camera bodies and two extenders and still can,t get autofocus to operate. I have spoken to the Cannon helpline who say the lens and extender are compatible and are going to look into the problem and get back to me in the next couple of days. Cannons web site says that the lens and extender are compatible so should autofocus still work with the extender fitted? Anyone else got a similiar set up and if so does autofocus work with the extender? Any help or suggestions appreciated. This equipment did,nt come cheap and I only bought the extender because I was assured it would Autofocus with this lens.
HELP!
Malcolm
HELP!
Malcolm