The Summilux-SL 50 f/ 1.4 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.
I had to move quick to capture what I wanted with the ambient light I had available.
Jarle Hagen
The Sami people in Norway, photographed by Jarle Hagen
In the far north of his home country, the weather forced Norwegian photographer Jarle Hagen to stay a little longer than he had originally planned. The outcome of this is a series of intense character studies of a people that more than literally lives at the fringe of Norwegian society.
Construction Details
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 Summilux-SL 50 f/1.4 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.
Proofs of performance Summilux-SL 50 f/1.4 ASPH. in Action
Technical Data Files
SUMMILUX-SL 1:1.4/50 ASPH.
German
pdf
916.06 KB
SUMMILUX-SL 50 f/1.4 ASPH.
English
pdf
925.16 KB
SUMMILUX-SL 50 f/1.4 ASPH.
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| Order number | 11 180 |
| Field angle (diagonal, horizontal, vertical) | 47.9°/40.5°/27.7° |
| Optical design | |
|---|---|
| Number of lenses/groups | 11/9 |
| Number of asph. surfaces / lenses | 4/2 |
| Entrance pupil position | 76.8 mm |
| Working range | 0.6 m to infinity |
| Distance setting | |
|---|---|
| Smallest object field | 241 x 362 mm |
| Largest reproduction ratio | 1:10 |
| Aperture | |
|---|---|
| Setting/function | Electronically controlled aperture, set using turn/push wheel on camera, including half and third values |
| Aperture setting range | 1.4-22 |
| Lowest value | 22 |
| Bayonet/sensor format | L-Mount, full-frame 35mm format |
| Filter mount | E82 |
| Dimensions and weight | |
|---|---|
| Length to bayonet mount | 124 mm |
| Largest diameter | 88 mm |
| Weight | 1.065 g |
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