Thanks for all the replies to my other thread regarding Carl Zeiss, Tamron and Sigma standard kit lens replacements. Have ended up ordering the Tamron 17-50mm which I can't wait to receive from Bristol Cameras! Now I need a superzoom for a trip to South Africa. I figure that the Tamron 17-50mm won't cut it out in the bush so need something with a bit more versatility. What about the Tamron 18-250mm or the Sony 18-250mm? Are they the same lens rebadged or something? Is there anything better out there without busting the bank (i.e. £500+)? Have also seen the Sigma 18-200mm which reviews well by all accounts. Appreciate all the help and advice as usual.