APO-LANTHAR 90mm F4 Close Focus VM - Silver
A Close Focusing 90mm VM medium telephoto lens that combines ultimate performance with compactness.
APO-LANTHAR 90mm F4 Close Focus VM, a medium telephoto lens designed exclusively for Voigtländer full-frame VM mounts.
APO-LANTHAR is a designation given to particularly high-performance products within the Voigtländer lens lineup, with "APO"
deriving
from the apochromatic design. The apochromatic design, which minimizes axial chromatic aberration in the RGB spectrum - the three
primary
colours of light-to near zero, was originally developed in response to the advent of colour film in the mid-20th century.
However, today's high-resolution digital sensors demand even more advanced suppression of chromatic aberration.
Apochromatic design is not an outdated technology that has already been solved; rather, it is a challenge that must be seriously addressed
in the digital age.
The APO-LANTHAR 90mm F4 Close Focus VM is an extremely high-performance manual-focus medium telephoto lens optimized for full-frame M-mount
sensors.
Through its apochromatic design, it thoroughly suppresses various types of aberrations, including axial chromatic aberration, while also
pursuing ultimate performance
in terms of resolution and contrast reproduction. While maintaining the traditional F4 aperture used in 90mm lenses for rangefinder
cameras, the lens achieves uncompromising
optical performance by incorporating anomalous partial dispersion glass in six of its eight elements across seven groups.
Total length from the mount surface is just 54.8mm - about the same as the short side of a credit card.
Weighing just 235g, the lens is lightweight, offering excellent portability while eliminating vignetting in the shooting frame when using
an optical rangefinder.
This lens features a high-precision rangefinder coupling mechanism. Combined with the silky-smooth feeling of its all-metal helicoid, it
allows
you to experience the true joy of focusing with a traditional rangefinder. The minimum focusing distance is 0.5m, achieved by extending the
straight-type helicoid
beyond the 0.7m set by the rangefinder.
While maintaining a magnification ratio of 0.28x-exceeding 1/4-macro the apochromatic design ensures there is no need to worry about image
quality degradation
even during close-up photography. The lens features a mechanism that provides a distinct click sensation at the point where the rangefinder
coupling range changes during focusing.
The lens body is available in two finishes: silver and black. A dedicated metal lens hood is included, designed to protrude only about 9 mm
to minimize interference with the viewfinder
frame while maintaining flare-reduction effectiveness, creating a seamless look with the lens body.
Features:
- Apochromatic design that eliminates chromatic aberration
- Optical design optimized for digital image sensors
- Compact design with a total length of 54.8 mm
- All-metal barrel for high rigidity and durability
- Manual focus for precise focusing
- Bayonet-type VM mount
- High-precision rangefinder coupling mechanism
- Minimum focusing distance: 0.5 m by live view
- Minimum rangefinder focusing distance: 0.7 m
- Click stops at the rangefinder coupling range
| Specifications |
|
| Focal Length: |
90mm |
| Maximum Aperture: |
F4 |
| Minimum Aperture: |
F22 |
| Lens Construction: |
7 groups 8 elements |
| Angle of View: |
27.5° |
| Aperture Blades: |
10 |
| Minimum Focus: |
0.5m live view (With focusing click at 0.7m) |
| Rangefinder Coupling: |
∞~0.7m (dependent on camera body used) |
| Maximum Diameter: |
∅53.0mm |
| Length: |
54.8mm |
| Filter Size: |
∅43mm |
| Weight: |
235g |
| Hood: |
Included |
| Colour: |
Silver |
| Mount: |
VM mount |
