LAOWA 15mm f/4.5 Zero-D Shift Laowa 15mm f/4.5 Zero-D Shift is currently the World’s Widest Shift lens for full frame cameras and medium format cameras. It comes with the 5 blades (in blue ring) and 14 blades (in red ring) aperture. The amount of shift is ±11mm for full frame camera and ±8mm for medium format cameras. The lens is perfect for architectural and interior photography. The sky-high buildings can be captured in a corrected perspective easily. Image quality is guaranteed with high image sharpness and nearly no distortion (Zero-D). 15mm f/4.5 Zero-D Shift enriches the diversity of Laowa’s extensive wide-angle lens collection by giving photographers more control on the perspective in their images. Focal Length: 15mmMax. Aperture : f/4.5Angle of View: 110°Shift Capability: Full Frame: ± 11mm of shiftMedium Format: ± 8mm of shiftFormat Compatibility: Full FrameLens Structure: 17 elements in 11 groupsAperture Blades: 5 / 14Min. Focusing Distance: 20 cmFocus Mode: Manual FocusDimensions 79 x 103 mmWeight 597g