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Abbreviations

Sample photos (2)

Specification

Source of data

• Manufacturer's technical data.

Manufacturer description #1

By changing the usual proportions of objects, the lens allows you to achieve very unusual and impressive pictorial effects. The lens is suitable for photography on both black and white and color films. The lens has a pre-set aperture, which increases the efficiency when photographing. The lens elements have an anti-reflective coating.

Light transmission: 0.85. Resolving power, mm: in the center: 60, at the edges: 30.

Manufacturer description #2

There is nothing comparable with 2.8x17 Lens by criterion of "price-quality" among the products from the competitors. For example, 8/16 lenses of other manufacturers which are being often considered as the analogues of 2.8x17 Lenses have perceptibly smaller image sharpness and considerable chromatic aberrations within the "yellow-dark blue" range. Also our 2.8x17 Lens is more resistant to lateral illumination than 2.8/16 Lenses. The relative aperture "2,8" testifies about sufficient lens aperture which allows to receive a light-coloured image in the viewfinder of the reflex camera and to perform photographing under low illumination conditions. In this respect the lens is not worse than the foreign analogues.

The materials which are being applied for 2.8x17 Lens production - glass and metal, of course, demand care, but not such care as in case of application of plastic which is being mostly applied by foreign manufacturers of the similar lenses. Our lenses can be used more efficiently than those made of plastic and will serve for longer period than plastic lenses. Quality of lenses will satisfy both the requirements of skilled amateur photographers, as well as a considerable part of the requirements of the strict professionals.

Chromatic aberrations which are practically inevitable in similar optical systems are rather insignificant and are at the level of the analogues of the leading foreign manufacturers. At that they can be easily corrected in the corresponding sections of Photoshop program.

Typical characteristics of fisheye lenses

• Extreme angle of view (at least 180° diagonally);
• Circular types (the image circle of the lens is inscribed in the image frame) or diagonal types (cover the entire image frame);
• Usually of equidistant projection type, with the distance from the picture center to any given point always proportional to the angle from the optical axis to that point;
• Huge barrel distortion;
• Short closest focusing distance (0.20 - 0.30m with 35mm full-frame prime lenses);
• Very large depth of field, eliminating the need for autofocus or precise manual focusing;
• Due to the extreme angle of view and convex front element, front filters cannot be used;
• Often equipped with a filter turret with swivel-mounted filters;
• Often come with a small, built-in petal-shaped lens hood.

From the editor

The lens was produced by the Belarusian Optical and Mechanical Association (BelOMO) under the name "РЫБИЙ ГЛАЗ МС ПЕЛЕНГ А 2,8/17" (which is FISH EYE MC PELENG A 2.8/17). "Пеленг" in Russian means "azimuth".

Unlike the MC PELENG 3,5/8 A, which is a circular fisheye, the MC PELENG A 2.8/17 is a full-frame fisheye, i.e. its image circle is not inscribed in the 24x36 frame but completely covers it.

Since the use of front filters is not possible due to the ultra wide angle of view, the lens accepts interchangeable filters that are screwed onto the rear element. Since the filter is part of the lens construction, one of the supplied filters must be installed before using the lens. The following filters were supplied with the lens: Н-1 (Neutral), УФ-1х (UV), ЖЗ-2,4х (Yellow/Green) and О-2,8х (Orange).

Notes

• The lens has an interchangeable mount that is mechanically identical to the T2 interchangeable mount. In the USSR, the following interchangeable mount adapters were produced: "КП-А/42" (T2 - M42x1/45.5), "КП-А/39" (T2 - M39x1/45.2), "КП-А/К" (T2 - Pentax K), "КП-А/Н" (T2 - Nikon F). "КП" is an abbreviation for "Кольцо переходное", which means "Adapter ring".

Lenses with similar focal length