With it's telephoto specification, life-size close-ups can be taken from further away without risk of disturbing the subject. Ideal for wildlife. The EF 180mm f/3.5L Macro USM is a telephoto macro lens which offers a maximum magnification of 1.0x. Life-size close-ups can be taken from further away, and at less risk of disturbing the subject (ideal for insects and other wildlife). The internal floating focusing system minimise s fluctuations in aberrations caused by changes in focusing distance. This ensures the lens is razor sharp from 1.0x to infinity.