This lens is a step in the right direction for Sony, but I am still waiting for the Carl Zeiss lenses to all be upgraded to incorporate the SSM motor just like the SAL24F20Z. This is a beautifully built lens. Smooth as silk and just as quiet. The glass is visibly better than the kit lenses that came with my camera. Comparing photos taken with this lens and my kit 18-55 SAM lens is chalk and cheese.