New TS rotation lets users freely combine tilting and shifting within the range of +/- 90 in the direction of movement. The Tilt function has an enhanced range of movement of up to +/- 8.5, a revolving construction for both portrait and landscape shooting modes, locking, ergonomically-designed and easily operated tilt and shift knobs, uses a circular aperture for beautiful out-of-focus areas, and is constructed using only lead-free glass and has an SWC lens coating that controls ghosting and flare to a far greater degree than earlier coating technologies.