NOKTON 21mm F1.4 Aspherical
Features
Amazingly large F1.4 maximum aperture for a 21mm lens. In addition to the dynamic perspective characteristic of a super wide-angle lens, this creative lens expands the range of photographic expression by enabling imaging that utilizes “bokeh” (out-of-focus blur). The lens employs a floating mechanism to maintain excellent imaging quality throughout the focusing range from close distance to infinity.
Main Features
Large maximum aperture for enjoying expression through bokeh
The amazingly large F1.4 maximum aperture for a super wide-angle lens enables a shallow depth of focus at maximum aperture. This is helpful for creative imaging utilizing bokeh.
12-blade aperture diaphragm for beautiful bokeh
The aperture diaphragm is configured with 12 blades to make the aperture opening as circular as possible. This means the out-of-focus areas of images are drawn naturally and point light sources etc. are drawn as soft round bokeh rather than as polygonal shapes.
Outstanding optical performance
The lens employs a floating mechanism to maintain excellent imaging quality throughout the focusing range from close distance to infinity. It also features lens elements with aspherical surfaces to eliminate distortion and lens elements made from anomalous partial dispersion glass to eliminate chromatic aberration.
Rectangular bayonet type lens hood included
A lens hood with a stylish rectangular shape extremely effective at shielding the lens from stray light and a bayonet type mount for ease of attachment and removal is included with the lens. The hood features a design that avoids interference with the distance window of a rangefinder camera.
Minimum focus distance of 0.5 meters
The lens focuses beyond the minimum rangefinder-coupled focus distance of 0.7m all the way down to 0.5m. This feature is especially useful when using the lens on a camera with a live view function.
Manual focus for reliable focusing
Employs a very precisely machined and adjusted all metal helicoid unit lubricated with high quality grease to realize smooth focusing operation with just the right amount of torque. This enables very precise focusing.
Bayonet type VM mount
Uses the VM-mount lens mount compatible with Leica M-mount. Not only can this lens be used on rangefinder-coupled cameras, but design-wise it also balances very nicely when mounted on mirrorless digital cameras with a mount adapter.
Installed with a focus-coupling system
The high-precision rangefinder coupling mechanism enables precise focusing in focus critical situations such as when shooting at or close to maximum aperture.
Imaging circle that covers full frame format
The lens features a generous imaging circle that covers the 35 mm full frame format. Furthermore, its size is extremely compact compared to interchangeable lenses for single-lens reflex cameras.
Specifications
Lens diagram
- Focal Length
- 21mm
- Aperture Ratio
- 1 : 1.4
- Minimum Aperture
- F16
- Lens Construction
- 11 groups 13 elements
- Angle of View
- 90.3°
- Aperture Blade
- 12
- Minimum Focus
- 0.5m
- Rangefinder Coupling
- ∞～0.7m (It depends on the camera)
- Diameter × Length
- φ69.5×69.7mm
- Filter size
- φ62mm
- Weight
- 480g
- Hood
- With square hood
EAN
- Ean Code
- EAN 4002451002233
Examples
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NOKTON 21mm F1.4 Aspherical PHOTO BY Mitsuru Kano -
NOKTON 21mm F1.4 Aspherical PHOTO BY Mitsuru Kano -
NOKTON 21mm F1.4 Aspherical PHOTO BY Mitsuru Kano -
NOKTON 21mm F1.4 Aspherical PHOTO BY Mitsuru Kano -
NOKTON 21mm F1.4 Aspherical PHOTO BY Mitsuru Kano