50mm F1.4 Asph Summilux SL
50mm F1.4 Asph-Summilux-SL
Product Description:
The Leica Summilux-SL 1:1,4/50 mm ASPH. is designed to deliver maximum optical performance and establishes new benchmark standards in terms of sharpness.
Thanks to internal focusing, the overall length of the lens remains unchanged when focusing.
A special feature of its construction is the motorized focusing system.
In contrast to manually focused prime lenses, where the length generally varies when focusing, the Leica Summilux-SL 50mm F1.4 ASPH. has internal focusing.
To ensure high imaging performance throughout the entire focusing range, the focusing group is elaborately constructed with an aspherical element,
yet remains light enough to guarantee fast automatic focusing.
Its optical design contains a total of 11 elements. Of these, two are aspherical elements and a further four are made from glasses with anomalous
partial dispersion for the correction of chromatic aberrations.
This complex optical construction reduces all monochromatic and chromatic aberrations to a hardly perceptible minimum.
Advanced multilayer coating on all lens surfaces, the optimum design of the lens tubes, and the rectangular lens hood provided with the lens
significantly reduce reflections and stray light.
| Specifiations: |
|
| Angle of view (diagonal, horizontal, vertical): |
47o, 40o, 27o |
| Optical design |
|
| Number of elements / groups: |
8 / 5 |
| Focal length: |
51.6 mm |
| Entrance pupil: |
25.7 mm (related to the first lens surface in light direction) |
| Focusing range: |
0.7 m to Infinity |
| Distance setting |
|
| Scale: |
Combined meter/feet-increments |
| Smallest object field: |
271 x 407 mm |
| Highest reproduction ratio: |
1:11.3 |
| Diaphragm |
|
| Setting / Type: |
Preset, with click-stops, half values available |
| Smallest aperture: |
f/16 |
| Bayonet: |
Leica M quick-change bayonet |
| Leica M quick-change bayonet |
Leica M quick-change bayonet |
| Filter (type) |
Internal thread for screw-on filters size E46, non-rotating |
| Lens hood |
Built-in, telescopic, lockable |
| Dimensions and weight |
|
| Length: |
52.5 mm |
| Largest diameter: |
53.5 mm |
| Weight: |
approx. 335 |
