COSINA

HELIAR 40mm F2.8 Aspherical

Semi-wide-angle lens with sharp-edged optical design

Features

A compact wide-angle lens with a lens configuration based on the Voigtländer traditional Heliar design. By adopting the latest optical design and an aspherical lens, it keeps the filter diameter as small as φ34 mm, and the total length of the product from the mount surface is 21.2 mm. A highly portable lens with a condensed retro-style exterior.

Main Features

Bayonet VM mount

Equipped VM mount compatible with the Leica M mount which will trigger the 50mm bright frame in a rangefinder camera equipped with an automatic bright line function.
It also has an excellent design balance when attached to a mirrorless digital camera via a mount adapter.

Compact & high performance

By adopting an aspherical lens, it demonstrates excellent optical performance even when the aperture is wide open. The total length of the product is 21.2 mm (from the mount surface), it does not protrude into the viewfinder frame when used on a rangefinder camera, and handling feels also good.

Two types of exterior to choose from

The exterior is made of brass and comes in two types: silver and black paint. On the black painted model, even the mount is finished in black*1. And the focus lock button, focus lever, and infinite / short-distance stopper are nickel-plated to add an accent to the design.

Dedicated lens hood included

The lens comes with a dedicated aluminum screw-in hood and an aluminum cover-type front cap to provide not only shading performance but also design compatibility with the lens body. (The black painted type comes with a painted hood and front cap.)

Manual focus for reliable focus operation

By adopting an all-metal helicoid unit processed and adjusted with high precision and high-quality grease that produces an appropriate torque, focusing with a smooth operation feeling is realized. It enables fine focus adjustment.

Equipped with a rangefinder interlocking system

The high-precision rangefinder interlocking mechanism enables severe focusing near the maximum aperture. The shortest shooting distance linked to the rangefinder is 0.7m.

Full frame image circle

The lens secures a generous image circle that supports full-frame format. In addition, it achieves a very compact style compared to interchangeable lenses for single-lens reflex cameras.

*1) The black-finished mount does not recognize the lens when used with a camera equipped with a system that reads the attached lens with a 6-bit code. Please set the lens detection to OFF (If the LEICA M11 firmware is lower than V1.30, please set to AUTO).

Specifications

Lens diagram

Focal Length
40mm
Aperture Ratio
1 : 2.8
Minimum Aperture
F22
Lens Construction
3 groups 5 elements
Angle of View
57°
Aperture Blade
10 elements
Minimum Focus
0.7m
Rangefinder Coupling
∞~0.7m (It depends on the camera)
Diameter × Length
φ52×21.2mm
Filter size
φ34mm
Weight
131g
Color
Silver / Black paint

EAN

Ean Code
EAN 4002451 006842
( Silver)
EAN 4002451 006859
(Black paint)

Examples

  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
  • HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
Voigtländer HELIAR 40mm F2.8 Aspherical PHOTO BY Mitsuru Kano
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HELIAR 40mm F2.8 Aspherical - 株式会社コシナ