Leica APO-SUMMICRON-SL

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Summary

TECHNICAL DATA OVERVIEW

View Angle Specifications

Diagonal, horizontal, and vertical view angles.

Filter Mount and Hood Compatibility

Details on filter threads and hood mount.

Summary

TECHNICAL DATA OVERVIEW

View Angle Specifications

Diagonal, horizontal, and vertical view angles.

Filter Mount and Hood Compatibility

Details on filter threads and hood mount.

The Leica APO-Summicron-SL 1:2/50 ASPH. is a high-speed standard lens designed for Leica SL and TL camera systems, offering outstanding rendering capacity. This manual provides essential information for familiarizing users with the lens's full scope of functions.

Function Description

The lens is designed for both autofocus and manual focusing. In autofocus mode, the camera automatically sets the sharpness. In manual mode, the user turns the focus ring to adjust sharpness, with the speed of rotation determining the rate of change. This allows for both fine adjustments and quick transitions between close-up and long-range settings.

The lens does not feature a depth of field scale. Instead, the camera's top display shows the near and far focal length limits of the depth of field alongside the set distance.

The APO-Summicron-SL 50 f/2 ASPH. comes with a lens hood optimally adapted to the beam paths. The symmetrical bayonet fitting allows the lens hood to be attached in reverse for more compact storage. To attach the lens hood, align one of the alignment points on the lens hood (1a) with the alignment point on the front mount of the lens (2b), then turn it clockwise by approximately 30° until it audibly clicks into place. The lens hood should remain attached during use or when the camera is ready for use, as it effectively eliminates contrast-reducing stray light and protects the front lens from damage and soiling.

Data exchange between the camera and lens, including control commands for autofocus and aperture, is facilitated via a contact strip in the bayonet.

Important Technical Specifications

Compatible cameras: Any Leica camera with a Leica L bayonet fitting.
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)
Order no.: 11 185

Usage Features

The lens features a focus ring (3) for manual sharpness adjustments. The lens hood (1) has an alignment point (1a) for proper attachment to the front mount (2) of the lens, which also has an alignment point (2b). The front mount includes an internal thread for filters (2a) and a male bayonet for the lens hood (2c). An alignment button (4) is provided for lens replacement. A contact strip (5) ensures communication between the lens and the camera.

The APO-Summicron-SL 50 f/2 ASPH. is compatible with screw filters of type E 67. Matching filters are available from Leica.

Maintenance Features

Disposal of Electrical and Electronic Equipment: This device contains electrical and/or electronic components that must not be disposed of with general household waste. It should be disposed of at a recycling collection point provided by your local authority. Any standard or rechargeable batteries must be removed and disposed of separately according to local regulations.
Safety Remark: A camera lens can act as a magnifying glass when exposed to direct frontal sunlight. Always protect the camera from extended direct sunlight by using the lens cap and keeping the camera in the shade (ideally in its camera case) to prevent damage to the interior.
General Notes:
- Record the serial numbers of your camera and lenses, as this information is crucial in case of loss.
- Always keep a lens or the camera bayonet cover attached to prevent dust or foreign bodies from entering the camera.
- 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 can attract lint and dust, which might then be introduced into the camera.
- Leica releases firmware updates for lenses periodically. New firmware versions can be downloaded from the Leica homepage and transferred to your lens.

For more information about visual and technical details, visit http://us.leica-camera.com. For replacement parts and accessories, visit en.leica-camera.com/Photography/Leica-SL/SL-Lenses. For customer care, contact Leica Camera AG at Phone: +49 (0)6441 2080-189, Fax: +49 (0)6441 2080-339, Email: customer.care@leica-camera.com, or visit www.leica-camera.com. For photography workshops, explore the Leica Academy at us.leica-camera.com/Leica-Akademie/Global-Leica-Akademie.