The Canon 17-40mm F4 is a wide to general purpose lens designed for full frame cameras, although it does of course work on crop frame cameras too. It’s L series so the optics are very high quality and the build quality is excellent. We freight Australia wide. All our Canon products are supplied through the authorised channel of Canon Australia are covered by the official “Canon Australia” warranty. We are an authorised Canon Pro dealer so CPS (Canon Professional Services) members can register their purchases. We offer free technical support and really want to help you make the most of your purchase.