ZEISS Loxia 2.8/21 - application sample 01
ZEISS Loxia 2.8/21 - application sample 02
ZEISS Loxia 2.8/21 - application sample 03

ZEISS Loxia 2.8/21

Compact and wide-angle in one.

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.

  • Features

    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.

    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.

    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).

  • Data

    Lens Design

    ZEISS Loxia 2.8/21

    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 Loxia 2.8/21 - Lens Cut ZEISS Loxia 2.8/21 - Lens

    Technical Specifications

    ZEISS Loxia 2.8/21

    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)

    *) Canon is a trademark or registered trademark of Canon Inc. and/or other members of the Canon Group. Nikon is a registered trademark of Nikon Corporation. Sony is a registered trademark of Sony Corporation. Fujifilm is a registered trademark of Fujifilm Corporation. Leica is a registered trademark of Leica Microsystems IR GmbH.

    **) Referring to 24x36 mm format

    ***) Referring to APS-C format

  • Pictures

    Your pictures made with our lens

    ZEISS Loxia 2.8/21

    Every day, thousands of impressive images are captured and every shot tells a different story, as you can see in these images below, all made with this ZEISS lens. The objective of the ZEISS Flickr Group is to gather the best of your images together and show them to the world.

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  • Accessories
    ZEISS Accessories - Filter

    Filter

    Accessories

    These filters feature T* ® anti-reflective coating and are optimal for protecting your front lens. The UV filters afford your pictures more brilliance, the POL filters reduce reflections on nonmetallic surfaces and increase color saturation.

    • High fitting accuracy for fast filter change
    • Can be used with a lens shade
    • Available in all standard sizes
    More details about the ZEISS T* UV and POL Filters
    ZEISS Accessories - Cleaning Products

    Cleaning Products

    Accessories

    From finger prints and grains of sand to the smallest particles of dust, dirty or scratched lenses compromise picture quality. It is essential that lenses are clean, and especially that they are properly maintained. ZEISS offers a range of professional cleaning products that perfectly complement your unique product experience. Our specialists have developed these products to meet the precise needs of high-quality optical surfaces.

    More details about the ZEISS Cleaning Products
    ZEISS Accessories - Camera Strap

    Camera Strap

    Accessories

    The ZEISS comfortable camera straps ensure that carrying your equipment does not lead to shoulder and neck strain, even when used for longer periods.

    More details about the ZEISS Camera Strap
    ZEISS Accessories - Lens Gear

    Lens Gear

    Accessories

    ZEISS Lens Gears make ZEISS Otus, ZEISS Milvus and ZEISS Loxia lenses a proper cine-style lens for professional filmmakers. They are available in four different sizes: mini, small, medium and large.

    • Quick mounting – no tools needed
    • Made of lightweight aluminum
    • Hardened surface coating
    • Features a 0.8 pitched gear
    • Follow focus runs smoother than ever before
    • No more screwdrivers, worn-out belts or straps that stick out
    More details about the ZEISS Lens Gears
  • Stories

    Stories on Lenspire

    ZEISS Loxia 2.8/21

  • Community

    Community Comments

    ZEISS Loxia 2.8/21

    Note:

    Our site is visited by people from around the world. To provide a common basis for discussion, we ask to write your comments in English. Observance of netiquette is for us a matter of course.


  • Awards & Reviews

    Reviews

    ZEISS Loxia 2.8/21

    photochirp.com
    "I bought the Zeiss 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
  • Downloads
    Downloads: Brochure ZEISS Mirrorless Lenses

    Brochure

    ZEISS Mirrorless Lenses
    Downloads: Brochure ZEISS Camera Lenses Product Overview

    Brochure

    ZEISS Camera Lenses Product Overview
  • Registration
    ZEISS Product Registration - Photo Lenses

    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. 

    Register your product
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Additional Information

ZEISS Loxia Lenses

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Manual Focusing

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