Image stabilisation Ultrasonic Motor Ultra-low Dispersion glass The Canon EF 70-300mm f/4-5.6 IS USM provides the opportunity to shoot sports and action at distance, with the Image Stabilization proving especially useful. Owners of the EOS 7D, which boasts a rapid burst mode, would be well suited to this lens which boasts an excellent feature set for the price, especially since the 75-300mm Mark III lacks image stabilisation and an Ultrasonic motor. The Ultrasonic Motor, which is both quick and quiet, is hugely beneficial to indoor photography and capturing easily-disturbed subjects. The image stabilisation corrects for erratic movement or longer shutter speeds by eliminating motion blur in your images, increasing sharpness where it would normally be compromised.
