For 38 delivered at home, the Lowepro - Nova 160 AW has a perfect size for a Canon EOS 450D camera and 2 Obj. Canon EF-S IS: 18-55 mm + 55-250 mm. Bigger would have been less convenient. But beware if accessories (Flash ...) must be stowed, it could end up being too small. Numerous pockets allow me now to put everything there (also battery charger).