Rite ive changed this as no-one is replying. Basically i have a Canon 18-55mm f/3.5-5.6 and the canon 55-200mm f/4.5-5.6 II USM and am considering selling these two and buying a
Sigma 18-200mm F3.5-6.3 DC. Do you think its a good idea? If not can anyone recommend another good all purpose lens?
Sigma 18-200mm F3.5-6.3 DC. Do you think its a good idea? If not can anyone recommend another good all purpose lens?

