Carl Zeiss Biogon T* 21/2.8 ZM Leica M Zilver
<h3>The expert for confined spaces and super-wide angle photography</h3> This lens provides image quality clearly beyond that of any SLR super-wide angle lens. It has been especially designed for super-wide angle documentation photography requiring an extremely high resolving power. Tiny details can be captured with unparalleled crispness and accuracy, while distortion is virtually non-existent. Demanding interiors can be photographed as easily and quickly as never before. This lens opens up new horizons and is ideal for extreme landscapes, dynamic architecture and demanding interiors. <h4>Technical specifications</h4>

• Focal Length: 21 mm
• Aperture range: f/2.8 - f/22 (1/3 steps)
• Focusing range: 0.5 m - infinity
• Image ratio at close range: 1 : 21
• Coverage at close range: 47 cm x 71 cm
• Number of elements/groups: 9/7
• Angular field (diag./horiz./vert.): 90°/80°/58°
• Filter-Mount: 46mm x 0.75
• Weight: 280 g
• Dimensions (with caps) ø: 53 mm, L: 75 mm