3. Full-time manual control mechanism
Delicate focusing control is essential in macro photography. The lens incorporates a full-time manual control mechanism that enables the user to manually adjust focus without engaging the AF/MF switch-over button, even when in the auto-focus mode. In addition, the lens employs a large focus control ring to ensure a solid grip and precise control when manually focusing.
4. Simple and attractive outer design
The lens employs a new outer design that is more refined and smoother in its overall contours by minimizing concavity, convexity and variations in its profile to match various digital SLR cameras. The lens barrel features a delicate matte finish, which enhances the high quality appearance of the lens.