Leica APO-SUMMICRON-SL 1:2/50 ASPH Instructions
- June 3, 2024
- Leica
Table of Contents
Leica APO-SUMMICRON-SL 1:2/50 ASPH
FOREWORD
Dear Customer,
We wish you a great deal of fun and success taking photographs with your new
lens. Please read this manual to familiarize yourself with the full scope of
functions your lens has to offer. Your Leica Camera AG
PART DESIGNATIONS
- Lens hood
- Alignment point
- Front mount
- Internal thread for filters
- Alignment point for lens hood
- Male bayonet for lens hood
- Focus ring
- Alignment button for lens replacement
- Contact strip
DISPOSAL OF ELECTRICAL AND ELECTRONIC EQUIPMENT
(Applies within the EU and for other European countries with active waste separation policies)This device contains electric and/or electronic components which must not be disposed of in general household waste. Instead, it should be disposed of at a recycling collection point provided by your local authority. This service is free of charge. Any standard or rechargeable batteries used in this device must be removed and disposed of separately in accordance with local regulations. Please contact your local authorities, waste disposal collection point or the retailer, from whom you purchased the device for more information on correct waste disposal.
SAFETY REMARK
- A camera lens can have the effect of a magnifying glass when exposed to direct frontal sunlight. The camera must therefore be protected against extended exposure to direct sunlight. Using the lens cap and keeping the camera in the shade (ideally in its camera case) will help prevent damage to the interior of the camera.
GENERAL NOTES
- Make a note of the serial numbers of your camera (engraved in the base of the camera housing) and lenses, as this information will be extremely important in case of loss.
- Make sure to always have a lens or the camera bayonet cover attached to prevent dust or other foreign bodies penetrating the camera.
- That is why you should always replace lenses quickly and in a dust-free environment.
- Never store the camera bayonet cover or the lens back cover in a pants pocket, as they will attract lint and dust, which could then be accidentally introduced into the camera.
- Leica releases firmware updates for lenses at irregular intervals. You can download any new firmware version from our homepage and transfer it to your lens.
SPECIAL FEATURES
Please visit the Leica Camera AG homepage for more information about the
visual and technical details: http://us.leica-camera.com
DESIGN OF THE LEICA SL LENSES
All Leica SL lenses basically look the same on the outside: On the front mount there is an external bayonet fitting for the lens hood and an internal thread for filters, as well as a focus ring and an alignment button for lens changes. All data exchange between the camera and lens is effected via a contact strip in the bayonet, including the control commands for autofocus and aperture.
FOCUSING
In autofocus mode, the camera sets the sharpness automatically, while the user
turns the focus ring 3 manually in manual mode. The speed at which you turn
the ring determines how quickly the setting changes. You can therefore make
fine adjustments or quickly move from a close-up to a long range setting.
Please refer to the relevant sections in the camera manual for more details.
DEPTH OF FIELD
No depth of field scale is provided, because Leica SL lenses don’t come with
an aperture settings ring. Instead, the top display of the camera shows the
near and far focal length limits of the depth of field alongside the set
distance.
LENS HOOD
APO-Summicron-SL 50 f/2 ASPH. comes with a lens hood 1 optimally adapted to
the beam paths. The perfectly symmetrical bayonet fitting allows an attachment
of the lens hood in reverse for more compact storage. In both cases, it is
attached (with the lens cap removed) with one of the alignment points on the
lens hood 1a aligning with the alignment point on the front mount of the lens
2b. It is then turned by approx. 30° in clockwise direction until it audibly
clicks into place. The lens hood should remain attached as long as the camera
is carried ready for use or is in use. It effectively eliminates contrast-
reducing stray light and protects the front lens against damage and soiling
(e.g. accidental fingerprint marks).
FILTERS
APO-Summicron-SL 50 f/2 ASPH. is compatible with screw filters of type E 67.
Matching filters are available from Leica.
REPLACEMENT PARTS/ACCESSORIES
Please contact Leica Customer Care or visit the Leica Camera AG website for
information about the extensive range of Leica replacement parts/accessories
available for your lens: en.leica-camera.com/Photography/Leica-SL/SL-
Lenses
TECHNICAL DATA
High-speed standard lens with outstanding rendering capacity
| Compatible cameras | Any Leica camera with a Leica L bayonet fitting1 |
|---|
View angles
(diagonal, horizontal, vertical)
| for Leica SL system: approx. 47°, 40°, 27°
for Leica TL system: approx. 32°, 27°, 18°
(equivalent to around 75 mm focal length in 35 mm format)
Lens system
Number of lenses/assemblies| 12/10
Aspherical surfaces| 4
Position of the entrance pupil
(to the bayonet, at infinity setting)
| 63.2 mm
Focusing
Setting| Choose automatic (Autofocus) or manual
mode on the camera
Focus range| 0.35 m – ∞
Smallest object field/largest scale| for Leica SL system: approx. 120 x 180
mm/1:5
for Leica TL system: approx. 79 x 118 mm/1:5
Aperture
Setting/Function| Electronically controlled aperture, setting on the camera,
half or
third values can also be set
Lowest value| 22
Bayonet| Leica L bayonet fitting with contact strip
Filter mount/lens hood| Male bayonet for lens hood (included), internal
thread for E 67
filters, filter mount does not rotate
Finish| Black, anodized
Dimensions
Length to bayonet flange| approx. 102/140 mm (without/with lens hood)
Largest diameter| approx. 73/83 mm (without/with lens hood)
Weight| approx. 690/740 g (without/with lens hood)
Never hold the camera with the lens attached by the camera housing only; always support the lens as well. This relieves pressure on the camera bayonet fitting.
LEICA CUSTOMER CARE
Please contact the Customer Care department of Leica Camera AG for the
maintenance of your Leica equipment and for help and advice regarding Leica
products and how to order them. You can also contact the Customer Care
department or the repair service provided by your regional Leica subsidiary
for repairs or warranty claims.
- Leica Camera AG
- Leica Customer Care
- Am Leitz-Park 5
- 35578 Wetzlar
- Germany
- Phone: +49 (0)6441 2080-189
- Fax: +49 (0)6441 2080-339
- Email: customer.care@leica-camera.com
- www.leica-camera.com
LEICA ACADEMY
Have a look at our full seminar program with many interesting workshops on the
topic of photography at: us.leica-camera.com/Leica-Akademie/Global-Leica-
Akademie
Technical Data
APO-SUMMICRON-SL 50 f/2 ASPH.
Sagittal structures
Tangential structures
The MTF is shown in each case f or the maximum aperture and the aperture
values 5.6 and 8.0 for long focusing distances (infinity). The contrast is
plotted for 5, 10, 20, 40 lines/mm for the height of the format for tangential
(dashed line) and sagittal structures (continuous line) for white light. The
plots for 5 and 10 lines/mm provide an impression of the contrast performance
for coarser object structures and the 20 and 40 lines/mm plots document the
resolving power for fine and finest object structures.