Leica 93092 Rangefinder Digital Camera Instructions
- July 30, 2024
- Leica
Table of Contents
Leica 93092 Rangefinder Digital Camera Instructions
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Front mount with filter thread
-
Lens hood, extensible and lockable
-
Index for diaphragm setting
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Diaphragm setting ring
-
Focusing ring with
a. Finger grip -
Fixed ring with
a. Index for focusing,
b. Depth of field scale, and
c. Red alignment button for lens change -
6 bit lens identification code
Thank you for your show of confidence in buying this lens. To ensure your pleasure with this high-quality product for years to come, please read these instructions carefully.
TECHNICAL DATA
High-speed, standard focal-length lens
Angle of view (diagonal, horizontal, vertical)
For 35 mm (24 x 36 mm): 47°, 40°, 27°, for Leica M 8 models (18 x 27 mm): 36°,
30°, 20°, corresponds to a focal length of approx. 67 mm with 35 mm-format1
Optical design
Number of lenses / groups 8 / 5
Aspherical surfaces 1
Position of entrance pupil 25.7mm
(from apex of 1st lens element)
Distance setting
Focusing range 0.7m to ∞
Scales Combined meter/feet graduation
Smallest object field / For 35mm: approx. 271 x407mm / approx. 1:11.3,
Largest reproduction ratio for Leica M8 models: approx. 203 x 305mm / approx.
1:11.3
Aperture
Setting / Function Preset, with click-stops, half values available
Lowest value 16
Lens mount Leica M quick-change bayonet with 6 bit lens identification bar
code for digital M models2
Filter mount Internal thread for screw-on filters size E46, non-rotating
Lens hood Built-in, telescopic, lockable
Viewfinder Camera viewfinder
Finish Black anodized
Dimensions and weight
Length to bayonet flange approx. 52.5mm
Largest diameter approx. 53.5mm
Weight approx. 335 g
Compatible Cameras All Leica M-models
- The nominal focal lengths of the Leica M lenses are based on the 35 mmformat, i.e. on a film format of 24 x 36 mm. In comparison, with its 18 x 27 mm, the sensor in the digital Leica M 8 models is somewhat smaller though by a factor of 0.75. Therefore, when used on the Leica M 8 models, these lenses have angles of view corresponding to lenses with focal lengths that are longer by a factor of 1.33 (1.33 = reciprocal of 0.75). This has the respective effects on their perspective, but not on their depth of field, which, with the Leica M8 models, can also be read directly off the lens (see “Depth of field scale”, p. 16).
- The 6 bit lens identification bar code (7) situated on the bayonet flange enables the digital Leica M models to identify the attached type of lens. This information is utilized by the camera to optimize exposure and image data.
- This is valid regardless of the format of the respective camera be it 18 x 27 mm (sensor size) as in the digital Leica M 8 models or 24 x 36 mm as in all other Leica M models.
SPECIAL PROPERTIES
The Leica Summilux-M 50 mm f/1.4 ASPH. offers an imaging performance that is
consistently high across almost the entire image field, and is only reduced
slightly in the extreme corners at full stop. This performance is maintained,
even with extremely short distance settings. Stopping down leads to a further
improvement, with the optimum being reached at f/5.6. The almost total lack of
distortion should also be emphasised. The vignetting typical of this kind of
high-speed lens when fully open – up to approx. 2 stops in the corners of the
image in this case, is significantly reduced by stopping down to approx. 1/2
stop at f/5.6. This consistency of imaging performance over the entire image
field and at all distances represents a very visible improvement compared to
the previous model.
A total of eight individual lenses are used to achieve this performance, three
of which are made of glass types with high refractive power and two have
anomalous (partial) color dispersion – one of them is made of a fluorite type
glass and the other of a type whose origins can be traced back to the former
Leitz glass laboratory. The concave, aspherical surface minimizes color
independent aberrations. For the first time in the Leica M system, the Leica
Summilux-M 50 mm f/1.4 ASPH. uses a ,,floating element” to maintain
performance in the close up range. This involves the rearmost group in the
optical system moving independently of the rest of the construction, thus
effectively preventing the otherwise inevitable spherical distortion at short
object distances.
DESIGN OF LEICA M-LENSES
All Leica M-lenses are basically of the same design. There are: an aperture setting ring (4), a distance setting ring (5), a fixed ring (6) with an index for focusing (6a), a depth of field scale (6b), and a red alignment button for lens change (6c). Furthermore, the Leica Summilux-M 50 mm f/1.4 ASPH. is equipped with a built-in telescopic lens hood (2) which can be locked in the working position. A 6 bit lens identification bar code (7) is situated on the bayonet flange. It relays lens data to the camera body so the exposure metering system of digital Leica M models can be calibrated. The information is also used to custom optimize image data according to the respective lens.
FOCUSING
The lens is focused by rotating the distance-setting ring (5). The finger-grip (5a) facilitates quick and easy handling.
DEPTH OF FIELD SCALE
The scale (6b) on the fixed ring (6) shows the range of the depth of field for the set distance. The ranges are indicated by the correspondingly marked vertical sections of the lines.
LENS HOOD
The Leica Summilux-M 50 mm f/1.4 ASPH. is equipped with a built-in, telescopic lens hood (2). It can be locked by a slight counter-clockwise rotation (looking from behind) in its extended working position so as to prevent it being accidentally pushed back even if the lens is placed somewhere face down. It should be used at all times as it shields effectively against contrast reducing stray light and offers additional protection for the front lens element against damage or dirt such as raindrops and accidental fingerprints.
FILTERS
E46 screw-on filters can be used on the Leica Summilux-M 50mm f/1.4 ASPH.. A corresponding UVa filter is available from Leica, as well as a UV/IR filter specifically for the Leica M8. The universal polarizing filter can also be used. The option of pivoting the filter in front of the viewfinder allows you to control the effect through the camera’s viewfinder without making any additional settings.
ACCESSORIES
Order no.
Leica UVa Filter E46 ……………………………………………………………………13 004
Leica Filter UV/IR E46……………………………………………………………………13 411
Leica Universal Polarizing Filter…………………………………………………….13 356
SPARE PARTS
Order no.
Front lens cap…………………………………………………………………………….14 231
Rear lens cap……………………………………………………………………………..14 379
Soft nappa leather case……………………………………………….. 439-606.088-000
TIPS ON LENS CARE
Dust on the outside of the lens should be removed carefully with a soft haired brush or a soft, clean, dry cloth. We recommend micro-fiber cloths (available from photographic and optical specialists) that are stored in a protective container and can be washed at temperatures of up to 40°C (without fabric softener, never iron!).If stains and finger have to be removed, use such a cloth and clean with a circular movement starting at the center of the lens. Do not use the type of cloths used especially for cleaning eyeglasses since these are impregnated with chemicals which can damage the glass used for high performance lenses. In order to ensure fast and smooth lens changes, the bayonet has been coated with a thin layer of grease in the factory. Normally, this lubricating film will remain on the lens for years, even if the lens is wiped from time to time. In the event that a grease solvent is used when cleaning, a fresh layer of grease should be applied. To do this, apply a small amount of vaseline to the bayonet with your finger and spread it with a clean cloth.
Important: Make sure not to apply too much vaseline to the bayonet, especially to omit the lens identification bar code (7), because residual grease could otherwise remain in the recess and lead to further grime accumulating. This could even cause the code to become illegible and thus interfere with some camera functions in digital M-models. In addition to the designation by type, each lens has an individual serial number. Please note this number, e.g. in your documents.
LEICA PRODUCT SUPPORT
Should you have any technical questions regarding the use of Leica products, the Leica information service will be happy to answer in writing or by phone, fax, or e-mail: Leica Camera AG Product Support / Software Support Am Leitz- Park 5 D-35578 Wetzlar Telefon: +49(0)6441-2080-111 /-108 Telefax: +49(0)6441-2080-490 info@leica-camera.com / software-support@leica-camera.com
LEICA CUSTOMER CARE
For service of your Leica equipment and in case of necessary repairs please contact the Customer Care department of Leica Camera AG or of any national Leica agency (see Warranty Card for address list). Ask your authorized dealer and Leica specialist for advice. Leica Camera AG Customer Care Am Leitz-Park 5 D-35578 Wetzlar Telefon: +49(0)6441-2080-189 Telefax: +49(0)6441-2080-339 customer.care@leica-camera.com
Leica Camera AG I Am Leitz-Park 5
35578 WETZLAR I DEUTSCHLAND
Telefon +49 (0) 6441-2080-0 I Telefax +49 (0) 6441-2080-333
www.leica-camera.com
References
Read User Manual Online (PDF format)
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