Leitz Wetzlar Elmar-C 90mm F/4

Short telephoto prime lens • Film era • Discontinued

Leitz Wetzlar Elmar-C 90mm F/4

Leica CL

35mm MF film rangefinder camera

Also known as ⋅ としても知られている:Leitz Minolta CL
Announced ⋅ 発表:1973
Mount ⋅ マウント:Leica M
Format ⋅ フォーマット:36 × 24mm
Shutter type ⋅ シャッタータイプ:Focal-plane ⋅ フォーカルプレーン
Shutter model ⋅ シャッターモデル:Mechanical ⋅ 機械的
Speeds ⋅ 速度:1 - 1/1000 + B
Exposure metering ⋅ 露出測光:Through-the-lens (TTL) ⋅ スルーザレンズ
Dimensions ⋅ 寸法:120x76x32mm
Weight ⋅ 重さ:365g

Designed for ⋅ のために設計された

Features highlight ⋅ 機能のハイライト

Manual
10 blades
MF
Compact

Specification ⋅ 仕様

Production details ⋅ 制作内容
Announced ⋅ 発表:1973
Production status ⋅ 生産状況:Discontinued ⋅ 製造中止
Production type ⋅ 生産タイプ:Mass production ⋅ 大量生産
Order No. ⋅ 注文番号。:11540
Original name ⋅ 元の名前:LEITZ WETZLAR ELMAR-C 1:4/90
Optical design ⋅ 光学設計
Focal length ⋅ 焦点距離:90mm
Speed ⋅ スピード:F/4
Maximum format ⋅ 最大フォーマット:35mm full frame ⋅ 35mmフルフレーム
Mount ⋅ マウント:Leica M
Flange focal distance ⋅ フランジバック:27.8mm
Diagonal angle of view ⋅ 対角画角:27° (35mm full frame ⋅ 35mmフルフレーム)
20.5° (Leica M APS-H)
Lens construction ⋅ レンズ構造:4 elements ⋅ 要素 - 4 groups ⋅ グループ
Diaphragm mechanism ⋅ ダイヤフラムメカニズム
Diaphragm type ⋅ ダイヤフラムタイプ:Manual ⋅ マニュアル
Number of blades ⋅ 絞り羽根の数:10
Focusing ⋅ フォーカシング
Coupled to the rangefinder ⋅ 距離計に結合:Yes ⋅ はい
Closest focusing distance ⋅ 最短撮影距離:1m (coupled focusing ⋅ レンジファインダー付き)
Maximum magnification ratio ⋅ 最大倍率:<No information ⋅ 情報なし>
Focusing method ⋅ フォーカシング方法:<No information ⋅ 情報なし>
Focusing modes ⋅ フォーカシングモード:Manual focus only ⋅ マニュアルフォーカスのみ
Manual focus control ⋅ マニュアルフォーカス制御:Focusing ring ⋅ フォーカシングリング
Physical characteristics ⋅ 体格的特徴
Weight ⋅ 重量:270g
Maximum diameter x Length ⋅ 最大直径x長さ:⌀51×61mm
Accessories ⋅ 付属品
Filters ⋅ フィルタ:Series 5.5
Lens hood ⋅ レンズフード:Screw-type ⋅ ネジ式 12517 (round ⋅ ラウンド)

Manufacturer description

A fixed lens imposes limitations - interchangeable lenses overcome them. That is why the LEICA CL offers the proven LEICA bayonet lens system. With two specially developed lenses - a 40mm SUMMICRON-C f/2 and a 90mm ELMAR-C f/4 - the new CL ideally meets all needs of creative picture control with minimum effort. More than 90% of all pictures are taken with medium-focus lenses. Hence the 40mm and 90mm lenses offer the most useful practical focal length combination. Both lenses are coupled with the LEICA CL view- and rangefinder. On fitting either lens the appropriate brightline frame automatically appears in the finder.

In contrast to the 40mm lens, the 90mm ELMAR-C concentrates on details that matter. The longer focal length gives more than twice the image size of the 40mm lens. It fills the frame to isolate the subject, leaving out irrelevant surroundings. That makes the 90mm ideal for portraiture, children and animals as well as flowers and still life subjects. This lens will equally thrill you for distant views, architecture and landscape photography, and for feature and sport shots.

From the editor ⋅ 編集者から

A special lens introduced for the Leica CL (1973), more compact than the normal 90mm Elmars. The lens coupled with the rangefinders of Leica M cameras, although not accurately because it was made for the shorter CL rangefinder base and the cam slope was different.

The lens was provided with a fold-back rubber lens hood similar to that for the 40mm Summicron-C.

To fit Series 5.5 filters, unscrew the lens hood, place the filter in position and secure it by screwing the hood in again (Note: screw thread at the front of the lens is not the same as the LEICA E39 filter thread).

This lens was also made by Minolta in Japan under the name M-ROKKOR 90mm F/4. The only difference is that it uses 40.5mm filters and hood instead of Series 5.5 filters and special hood.

Typical application ⋅ 典型的なアプリケーション

portraits ⋅ 肖像画, travel ⋅ トラベル

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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm

Travellers' choice

Note

Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

One of the best slow short telephoto primes

According to lens-db.com; among lenses designed for the same maximum format and mount.

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Quality control issues

The manufacturer of this lens does not provide adequate quality control. If you do decide to purchase this lens, do not order it online, but choose the best copy available in the store. In any case, there may also be problems with the build quality, and warranty repairs can take months.

Unique Leica Look

Leica lenses are one-of-a-kind optical masterpieces that are impressive because of their unique Leica Look. This is ensured through exceptional optical design combined with selected materials and the highest quality standards.

Leica lenses reveal their full potential only when mounted on Leica cameras, since only these have sensors precisely matched to their optical characteristics.

Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film.

The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

MF

Sorry, no additional information is available.

Series filters

A filter mounting system developed in the USA and used from the 1930s to the 1970s. The filters were round pieces of glass or gelatin mounted as a rule in metal rims with no threads. The filter is inserted into the screw-in or slip-on adapter ring mounted on a lens and then held in place with threaded retaining ring. A lens hood sometimes acted as an adapter or retaining ring.

Filter type Filter size
(inch — mm)
Retaining ring size
(inch — mm)
Lens diameter, mm
Series IV / 4 13/16 20.3 15/16 23.8 16-18
Series V / 5 1 3/16 30.2 1 5/16 33.3 19-30
Series VI / 6 1 5/8 41.3 1 3/4 44.5 31-42
Series VII / 7 2 50.8 2 1/8 54.0 43-51
Series VIII / 8 2 1/2 63.5 2 5/8 66.7 52-67
Series IX / 9 3 1/4 82.6 3 7/16 87.3 67-85
Series X / 10 4 1/2 114 4 5/8 117 86-114
Series XI / 11 5 7/16 138 5 9/16 141 115-138

Original name

Lens name as indicated on the lens barrel (usually on the front ring). With lenses from film era, may vary slightly from batch to batch.

Format

Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),

where:

CF – crop-factor of a sensor,
FL – focal length of a lens.

Mount

A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance from the lens mount to the film or sensor can also be different.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Flange focal distance

The flange focal distance (FFD), sometimes called the "flange back", is the distance from the mechanical rear end surface of the lens mount to the focal plane.

Focal length

The focal length is the factor that determines the size of the image reproduced on the focal plane, picture angle which covers the area of the subject to be photographed, depth of field, etc.

Speed

The largest opening or stop at which a lens can be used is referred to as the speed of the lens. The larger the maximum aperture is, the faster the lens is considered to be. Lenses that offer a large maximum aperture are commonly referred to as fast lenses, and lenses with smaller maximum aperture are regarded as slow.

In low-light situations, having a wider maximum aperture means that you can shoot at a faster shutter speed or work at a lower ISO, or both.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. For example, a magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size".

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

Convex protruding front element

The convex front element protrudes from the lens barrel, making it impossible to use filters.

Manual diaphragm

The diaphragm must be stopped down manually by rotating the detent aperture ring.

Preset diaphragm

The lens has two rings, one is for pre-setting, while the other is for normal diaphragm adjustment. The first ring must be set at the desired aperture, the second ring then should be fully opened for focusing, and turned back for stop down to the pre-set value.

Semi-automatic diaphragm

The lens features spring mechanism in the diaphragm, triggered by the shutter release, which stops down the diaphragm to the pre-set value. The spring needs to be reset manually after each exposure to re-open diaphragm to its maximum value.

Automatic diaphragm

The camera automatically closes the diaphragm down during the shutter operation. On completion of the exposure, the diaphragm re-opens to its maximum value.

Number of blades

As a general rule, the more blades that are used to create the aperture opening in the lens, the rounder the out-of-focus highlights will be.

Some lenses are designed with curved diaphragm blades, so the roundness of the aperture comes not from the number of blades, but from their shape. However, the fewer blades the diaphragm has, the more difficult it is to form a circle, regardless of rounded edges.

At maximum aperture, the opening will be circular regardless of the number of blades.

Weight

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front and/or rear lens elements over multi-coatings.

Filters

Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.