Zeiss 21mm f/2.8 Biogon T* ZM Lens for Leica M, Silver

SKU: ZI2128BSN MFR: 1365-650
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Key Features

  • Capture stunning landscapes with the Zeiss 21mm wide angle lens, known for exceptional clarity.
  • Experience superior image quality with the Zeiss Biogon lens, featuring outstanding sharpness.
  • Enjoy precise manual focus with this Leica M-mount lens, ideal for detailed compositions.
  • Achieve beautiful background blur with the f/2.8 aperture, perfect for portraits and bokeh.
  • Built with Zeiss T* coating, this lens minimizes reflections for vibrant, true-to-life colors.
  • The compact and lightweight design makes this 21mm lens a great travel companion for Leica M cameras.
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Special Order?Estimated to Ship: 08/18/2025
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Questions & Answers

ERNEST F : What does the "T*" stand for in this lens? Another has a "ct" designation? Thank you, ErnestCHRIS J : I read somewhere (Ken Rockwell's site?) that this is a trademark for their multicoat process. Don't know how it differs from 'ct'.
Shopper : Why Did You Choose This?JACOB A : small size, mechanical focus and aperture

Reviews about this item

Review Summary

2011-08-16T21:00:00

Rated 4 out of 5

Excellent performance & more affordable.

First off.. this is a no compromise lens. Excellent, super sharp performance. Some online reviews say it's sharper than the Leica 21mm 2.8 which is over twice as much. I used this initially with my (cropped sensor) M8 as a 28mm and now I use it with an M9. Wide open, you will see vignetting but enabling the M9's in-camera 21mm lens profile cleans this up dramatically. Great for detailed landscapes and excellent for buildings and architecture. I will give Leica a nod on slightly better build quality (hence the 4 stars) but this lens feels well built and built to last. It's has far more metal and a smoother feel than a high end SLR lens. These are often sold out and are hard to get but this lens is highly recommended.

Bob B.

2009-01-01T19:00:00

Rated 4 out of 5

Fine lens that is reasonably priced

I have used this lens on an M6 and an M8. It has the look and feel of a Leica lens. How is the picture quality? Color rendition and contrast are beautiful from edge to edge. The resolution is not quite equal to that of a Leica lens of similar focal length but for the price difference I don't mind.

STEVEN B.

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Zeiss 21mm f/2.8 T* ZM Specifications

General

General

Jump to...
  • Lens Mount

    Leica M

  • Color

    Silver

  • Lens Type

    Wide Angle

  • Format Compatibility

    Full Frame

  • Focus Type

    Manual Focus

  • Closest Focus Distance

    19.7" / 50 cm

  • Focal Length

    21mm

  • Angular Field Diag / Horiz. / Vert.

    (24x36 mm format) - 90½ / 80½ / 58½ (Diag / Horiz. / Vert)

  • Aperture Range

    f/2.8 - f/22

  • Maximum Magnification

    1:21

  • Filter Size

    46mm

Construction

Jump to...
  • Lens Elements / Groups

    9 Elements / 7 Groups

  • Diaphragm Blades

    10

  • Dimensions

    Length (without lens caps) 64 mm (2.52")

  • Weight

    10.58 oz / 300g

Features

Jump to...
  • Image Stabilization Type

    None

  • Other Features

    Zeiss T* Anti-Reflective Coating

  • UPC Code

    4047865200035

6 Accessories for Zeiss 21mm f/2.8 Biogon T* ZM Lens for Leica M, Silver

  • All Accessories (6)
  • Bags & Cases (1)
  • Filters (2)
  • Cap Leash (2)
  • Cleaning Accessories (1)

Designed For Use With:

  • Leica M10 Monochrom
  • Leica M10-D
  • Leica M10-R
  • Leica Leica M Monochrom
  • Leica M (Typ 240)
  • Leica M (Typ 262)
  • Leica M Monochrom
  • Leica M Monochrom (Typ 246)
  • Leica M-D (Typ 262)
  • Leica M-E
  • Leica ME (Typ 240)
  • Leica M-P (Typ 240)

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Zeiss 21mm f/2.8 T* ZM

The Zeiss 21mm f/2.8 Biogon T* ZM Lens for Leica M, Silver, is a superior wide-angle lens that empowers photographers to explore diverse angles and perspectives. This lens, specifically designed for Leica M cameras, offers unparalleled performance and extreme resolving power, even when used at its maximum aperture. It delivers images with virtually no distortion, ensuring that your photos maintain their true-to-life proportions.

The Biogon T* 2,8/21 ZM lens also boasts excellent control of flare and ghosting, providing you with clear, sharp images even in challenging lighting conditions. Its superb contrast rendition across the entire frame ensures that your photos will have rich, vibrant colors and deep, true blacks.

The sleek design of this Zeiss lens is not only aesthetically pleasing but also practical. Its slim profile makes it easy to grip and focus, while its standard 46mm filter diameter is compatible with many other ZM lenses. This compatibility allows for easy interchangeability of filters between lenses, adding to its versatility.

This lens is rangefinder coupled, facilitating easy focusing. An optional 21mm viewfinder is available for precise image composition, ensuring that you capture your scene exactly as you envision it. When combined with a digital rangefinder camera with a 1.3 crop factor, the lens provides an effective focal length of 27mm.

The Zeiss 21mm f/2.8 Biogon T* ZM Lens is a versatile tool, suitable for a wide range of wide-angle applications. Whether you're capturing dynamic reportage work, breathtaking landscape shots, or detailed architectural photos, this lens is an excellent choice for delivering high-quality, professional results.

Zeiss 21mm f/2.8 T* ZM Features

  • 1/3 stop interval click stops allows for exact exposure
  • Precise 10 bladed aperture creates pleasing unfocused highlights
  • Wear resistant filter mount for long-term reliability in tough conditions

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Capture stunning landscapes with the Zeiss 21mm wide angle lens, known for exceptional clarity.
  • Experience superior image quality with the Zeiss Biogon lens, featuring outstanding sharpness.
  • Enjoy precise manual focus with this Leica M-mount lens, ideal for detailed compositions.
  • Achieve beautiful background blur with the f/2.8 aperture, perfect for portraits and bokeh.
  • Built with Zeiss T* coating, this lens minimizes reflections for vibrant, true-to-life colors.
  • The compact and lightweight design makes this 21mm lens a great travel companion for Leica M cameras.

What's in the box:

  • Zeiss 21mm Biogon Manual Focus Lens
  • Front & Rear Lens Caps
  • Zeiss Warranty