Canon EF 17-40mm f4.0 L USM Lens

£60 Cashback - See Extra Info for details. The Canon EF 17-40mm f4.0 L lens is quite simply brilliant, the virtually circular aperture diaphragm allows the user to create softer, more uniform out of focus regions this means the subject in the foreground is sharp and they stand out against the background. The minimum focussing distance is a mere 28cm throughout the entire zoom range. The Canon EF 17-40mm f4.0 L lens can act as an ultra wide angel zoom lens on full frame digital EOS or film cameras, on a DSLR with an AP-C sized sensor the lens gives the user a view equivalent to a 28-70mm lens on a full frame camera. The super spectra coating ensures maximum colour balance and reduces the risk of ghosting and flare. The Canon EF 17-40mm f4.0 L lens is extremely durable it is highly resistant to moisture and dust making it an ideal companion for photographers who want to put their lens through its paces in harsh environments, the glass used throughout the construction of the lens is lead free.