User manual Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141
Operating instructions and pdf manual for use - Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141 User manual, User manual Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141, Leica, APO-Summicron-M, 50mm, f/2.0, ASPH, Lens, 11141, Video
User manual for Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141
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User manual for the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141
The user manual for the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141 provides
necessary instructions for the proper use of the product Photography - Lenses - Rangefinder Lenses.
The Leica APO-Summicron-M 50mm f/2.0 ASPH Lens represents a true milestone in photographic lens development. You need look no further than the MTF chart to understand what makes this piece of equipment so significant: At an aperture of f/5.6, the lines for both tangential and sagittal structures are absolutely flat--meaning the lens has no image degradation whatsoever. The graphs for f/2.0 and f/2.8 are highly impressive, as well. This is an achievement previously believed by many to be impossible in the field of optics.
Even the finest of details are resolved with greater than 50% contrast across the entirety of the image field. Vignetting is restricted to a mere 2 stops at full aperture in 35mm format, equivalent to about 1 on Leica's M8 models, and stopping down to f/2.8 visibly minimizes this light deterioration towards the image's edges, with virtually none but the natural vignetting remaining. At a maximum of 0.4% (pin cushion), distortion is so low, it's practically imperceptible.
Eight lens elements combine to realize this exceptional performance. Every image you capture with this APO-Summicron-M lens--in any photographic situation--will demonstrate extreme sharpness and resolution throughout, providing you all the validation you need to know that you've made a superior choice. Plus, the lens' apochromatic correction reduces chromatic aberration on sharp edges to deliver the most natural rendition of each detail. The result? You enjoy the best possible reproduction results at any and all print sizes.
To enable such apochromatic correction, which produces a common focusing plane for 3 light wavelengths, 3 of the 8 lens elements are constructed of glass with high anomalous partial color dispersion, while 2 of the remaining 5 feature a high refractive index. In the rear group, the first lens' aspherical surface works to minimize spherical aberration and flatten the image field. Optical construction is Gaussian type, while the arrangement of lens elements resembles that of the Summilux-M 1:1.4/35 mm ASPH. This group, located behind the diaphragm, comprises the floating element that moves independently of the others in focusing, altering position relative to the front group, to ensure that the lens delivers incredible image quality throughout its focus range--even at the closer focusing distances.
To realize the stunning apochromatic correction, it was necessary to utilize specially-formulated glasses based upon original creations of the former Leitz glass lab. Leica understands that the process of working with these glasses is truly a fine art, which is why they have been integrated so expertly into this Summicron lens.
The lens' design is based on that of its predecessor, with the 50mm focal length and maximum f/2.0 aperture serving as the foundation for the rest of the development. With a compact body only slightly longer and heavier than the Summicron-M 1:2/50mm, and with an almost identical diameter, this lens delivers noticeably superior image quality. In the 30 years since the launch of the 1:2/50mm, Leica has accomplished a lot--but this is certainly one of their crowning achievements.
This groundbreaking lens is the culmination of 150 years of hard work. The APO-Summicron-M 50mm owes its unparalleled performance to the perfect interaction of all design and construction elements--from optical calculation to selection of materials to highly sophisticated and elaborate manufacturing and finishing.
Constructed completely by hand in Germany, and composed of only the best materials, the APO-Summicron-M 50mm f/2.0 ASPH Lens is a testament to the amazing achievements that are possible when advanced technology, vast knowledge, and meticulous, expert craftsmanship collide.
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Additional parameters of the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141:
Specifications
Focal Length
50 mm
Angle of View
Diagonal: 47° Horizontal: 40° Vertical: 27°
With Leica M8 models: Diagonal: 36° Horizontal: 30° Vertical: 20°
Elements/Groups
8 elements in 5 groups
Entrance
Position of entrance pupil from bayonet flange: 0.96" (24.4 mm)
Focus Range
2.3' (0.7 m) - infinity
Scales
Combined meter / graduation
Smallest Object Field
Approx. 10.9 x 16.4" (277 x 416 mm) With Leica M8 models: 8.0 x 12" (203 x 305 mm)
Iris Blades
11
Reproduction Ratio
Max.: Approx. 1:11.3
Aperture
f/2.0 - f/16 Prefix with click-stops, half steps
Mount Type
Leica M quick-change bayonet
Lens Hood
Built-in, extendable by rotating
Filter Mount
Female thread for screw-on E39 filters, non-rotating
The user manual for the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141 can be downloaded in .pdf
format if it did not come with your new rangefinder lenses, although the seller is
required to supply one. It is also quite common that customers throw out
the user manual with the box, or put the CD away somewhere and then can’t find it.
That’s why we and other Leica users keep a unique electronic library
for Leica rangefinder lensess,
where you can use our link to download the user manual for the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141.
The user manual lists all of the functions of the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141,
all the basic and advanced features and tells you how to use the rangefinder lenses.
The manual also provides troubleshooting for common problems. Even greater
detail is provided by the service manual, which is not typically shipped with the product,
but which can often be downloaded from Leica service.
If you want to help expand our database, you can upload a link to this website
to download a user manual or service manual, ideally in .pdf format. These pages
are created by you – users of the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141. User manuals are also
available on the Leica website under Photography - Lenses - Rangefinder Lenses.
Question and answer discussion forum concerning user instructions and resolving problems with the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141 - no comments have been made yet - be the first to add a comment
using digital optical out. "clicking sound." CD plays fine. video HDMI is fine. since there is no toslink setting, I try SPDIF/line out. What audio setting should I use? ...Vanguard ed 11 8 x 42 binos - Vanguard 10x42 Endeavor ED II Binocular ENDEAVOR ED II 1042 Posted by: gary hensman 2025-04-15 12:14:16
the distance adjusting screw is coming loose. how do i tighten it?...
Question and answer discussion forum concerning user instructions and resolving problems with the Leica APO-Summicron-M 50mm f/2.0 ASPH Lens 11141 - no comments have been made yet - be the first to add a comment