The sony sal100m28 100mm f28 macro lens is capable of af shooting down to life size is great for close up shots and can also be used as a normal lens it descriptive performance delivers high contrast and high resolution while its circular aperture offers a beautiful defocused effect good holding performance comes from its built in auto clutch non turning focus ring in af the sony sal100m28 marco lens is equipped with a focus hold button and focus range limiter to improve operability