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One completely new feature of the Loxia lens is that you can ‘declick’ the aperture’s locking mechanism using a tool (supplied) and an adjustment screw on the bayonet surface. This means that for video applications, you can smoothly eliminate any unwanted differences in brightness as you pan the camera. This feature can also be used with other video systems whose size makes them suitable for adaption.
Precise manual focus
Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. Zeiss lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane. The precise engraving in meter and feet, and the depth of focus scale provide additional support for manually focusing.
Virtually distortion-free optics
Dramatic perspectives and a view from extraordinary image angles – Zeiss lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image center, would be reproduced with a curved shape. This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.
High-grade full-metal casing
Tangible quality that holds its value is what qualifies Zeiss lenses for decades of hard use. A precision-engineered full-metal casing, grippy focus and aperture rings made of metal, and a tough front bayonet and filter screw guarantee stunning photographic results. A special sealing ring on the bayonet also protects the interface between the camera and the lens.
Full frame compatible
Zeiss lenses are suitable for digital Sony Alpha cameras and have been optimized for film and sensors up to full 35 mm format (24 x 36 mm).
Focal Length 21 mm Aperture range f/2.8 – f/22 Focusing range 0,25 m (9.84”) – ∞ Number of elements/groups 11 / 9 Angular field, diag./horiz./vert. 91° / 81° / 59° Coverage at close range 281 x 187 mm (11.06 x 7.36″) Filter thread M52 x 0,75 Dimensions (with caps) 85 mm (3.35″) Weight 394 g (0.87 lbs) Camera mounts E-Mount
|Model||Loxia 21mm F2.8|