ZEISS Loxia 2.8/21

Compact and wide-angle in one.

Loxia Lenses

2.8/21

2.4/25

2/35

2/50

2.4/85

2.8/21

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2.8/21

2.4/25

2/35

2/50

2.4/85

Compact, wide-angle and powerful – these are the properties that make the super wide-angle Loxia 2.8/21 so special. The optical design has been specially developed for high-resolution, full-frame sensors of the mirrorless Sony α series. A system expansion through the new ZEISS Loxia – in a focal length range that has a long tradition at ZEISS.

Despite its compactness, the super wide-angle ZEISS Loxia® 2.8/21 offers outstanding image performance – across the entire image field of a full-frame sensor. Whether architecture, landscape or also three-dimensional subjects in close-up against a spacious background – this focal length with its large image angle is an excellent addition to the Loxia lens family. It is an absolute must for wide-angle fans who want to capture even the tiniest details of a special moment in a photo or on film.

ZEISS Loxia lenses were specifically designed for Sony α7 cameras. This means that they can make the most of the mirrorless, full frame system, while giving you all the creative possibilities of ‘classic’ photography with manual focus at the same time.

And that’s not all: ZEISS Loxia lenses also provide everything you need to shoot high quality video, such as the unique DeClick feature for smooth adjustment of the aperture, for example.

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.

DeClick feature

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.

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.

Immensely compatible

The ZEISS Loxia lenses are suitable for use with the mirrorless Sony Alpha cameras with E-mount and were optimized for sensors up to full 35 mm format (24 x 36 mm). With the ZEISS Loxia lenses, the aperture is controlled manually. This allowed the integration of the so-called DeClick feature of the mechanical aperture ring. The cameras feature the corresponding automatic exposure control (A) and manual exposure control (M).

Performance

Focal length	21 mm
Aperture range	f/2.8 – f/22
Camera Mount	Sony E-Mount*
Format compatibility	Full Frame
Focusing range	0,25 m (9.84") – ∞
Free working distance	0,16 m (6.30") – ∞
Angular field** (diag. horiz. vert.)	91° \| 81° \| 59°
Diameter of image field	43 mm (1.69")
Coverage at close range (MOD)**	281 x 187 mm (11.06 x 7.36")
Image ratio at minimum object distance	1 : 7.81
Lens elements \| groups	11 \| 9
Flange focal distance	18 mm (0.71")
Entrance pupil position (front of image plane)	67 mm (2.63")

Features

Autofocus	–
Image Stabilization	–

Physical

Filter thread	M52 x 0.75
Rotation angle of focusing ring	90°
Diameter max.	62 mm (2.44")
Diameter of focusing ring	62 mm (2.44")
Length (with lens caps)	85 mm (3.35")
Length (without lens caps)	72 mm (2.83")
Weight	394 g (0.87 lbs)

Originally developed for SLR cameras requiring a long back focal distance for short focal lengths because of the mirror box (the distance between the back lens element and the film plane must be considerably longer than the focal length), the Distagon lenses (retrofocus design) are also ideal for mirrorless system cameras thanks to their optimized ray path. Even with longer focal lengths, the high-performance Distagon optical design enables consistently good correction all the way to the corners of the image and very low field curvature.

Distagon Design

Lens with aspheric optical surface

Lens made of special glass with anomalous partial dispersion

ZEISS Mirrorless Lenses

Brochure

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ZEISS Camera Lenses Product Overview

Brochure

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ZEISS Loxia 2.8/21

Datasheet

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ZEISS E-Mount Lenses

Brochure

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Awards

Reviews

photochirp.com
"I bought the Loxia 21mm f/2.8 manual focus lens for its wide aperture, small size and obviously the image quality Zeiss is known for; it is my second lens from Zeiss and I absolutely love it..."
photochirp.com

Lens Accessories

Round off the fully unique product experience.

When taking pictures, an optimal image is not the only consideration. Capturing that special experience also plays a key role. With their reliable functions, camera lenses from ZEISS ensure that photographers can fully concentrate on the image and composition, and bring their creativity to life. In order to perfect this experience, ZEISS now offers accessories tailored to the requirements of demanding photographers.

Cleaning Products

Optimal care for optical surfaces.

Cleaning Products

T* UV and POL Filters from ZEISS

Quality down to the last detail.

T* UV and POL Filters

Comfort Camera Strap

Ensure comfortable carrying or your equipment.

Comfort Camera Strap

Lens Gear

Attached in a flash.

Lens Gear

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Obtain the extended warranty

Product Registration

ZEISS grants a warranty period of two years from the date of purchase for all its photographic lenses. This may be extended to three years after registering with ZEISS Online Registration. Although the ZEISS extended warranty is already available in numerous countries, claims under warranty may only be made in the country in which the product was purchased.

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