Avenon 28mm F/3.5 [MC] LSM

akaKobalux Wide 28mm F/3.5 LSM

akaPasoptik 28mm F/3.5 LSM

Wide-angle prime lens • Film era • Discontinued

  • Announced:
  • · 1981
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · AVENON L28:3.5
  • · AVENON MC L28:3.5
  • · AVENON MC 28mm I:3.5
  • · Kobalux Wide 28mm F3.5
  • · PASOPTIK L28:3.5
  • Class:
  • · Slow full-frame wide-angle prime lens
  • · Pancake lens

Abbreviations

MC Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models.

Model history (2)

■Avenon 28mm F/3.5 [MC] LSM • Pancake lens
akaKobalux Wide 28mm F/3.5 LSM
akaPasoptik 28mm F/3.5 LSM		M6 - 41.00m⌀43 1981 ●
—Avenon 28mm F/3.5 LSM Millennium Edition (171 units) • Pancake lens 2000 ●
■M-Series 28mm F/3.5 LSMM6 - 40.75m⌀43 ●

Specification

Optical design:
35mm full frame
28mm
F/3.5
6 elements in 4 groups (Double Gauss derivative)
Leica screw mount
75.4° (35mm full frame)
Diaphragm mechanism:
Diaphragm type:
Manual
Aperture control:
Aperture ring
6 (six)
Focusing:
Coupled to the rangefinder:
Yes
1m
Focusing modes:
Manual focus only
Manual focus control:
Focusing lever
Physical characteristics:
100g
⌀51×17.4mm
Accessories:
Screw-type 43mm
Screw-type round

Source of data

  • Manufacturer's technical data.

From the editor

A wide-angle lens developed and produced by a small Japanese company, Avenon Kohki, which was later acquired by another small Japanese company, Y.K. Optical. It was sold from about 1981 to February 2002 in chrome or black finish under the following names:

  • "AVENON L28:3.5" - for the Japanese market,
  • "AVENON MC L28:3.5" or "AVENON MC 28mm I:3.5" - multi-coated version (since about 1992), for the Japanese market,
  • "Kobalux Wide 28mm F3.5" - for the North American market,
  • "PASOPTIK L28:3.5" - for the UK market.

The lens was supplied with two caps and a small 43mm round metal lens hood. An external 28mm brightline metal viewfinder and an 28/90mm M-mount adapter were available separately.

Around 1997, the number of aperture blades was increased from 6 to 10, and the focusing lever was replaced by a focusing tab.

According to the manufacturer, the Avenon/Kobalux 28/3.5 L is "one of the most compact 28mm wide-angle lenses for rangefinder cameras, featuring excellent optical performance, sharpness, tonal character and minimal distortion across the frame".

According to the manufacturer, "when mounted on a camera, the lens protrudes deeply into the camera body. Because of this, it cannot be mounted on some cameras, notably on Canon series V cameras, Canon series VI cameras, and Canon series 7. On these late Canon bodies the lens would hit the camera's internal light shield."

The lens is fully compatible with all other cameras, both with the Leica screw mount and Leica M bayonet mount (via the adapter).

Avenon 28mm F/3.5 [MC] LSM special editions (1)

Lenses with similar focal length

■Leica screw mount (20)
Canon 25mm F/3.5 LSM • Pancake lensM5 - 31.00mS.VI 1956 ●
Canon 28mm F/2.8 LSM • Pancake lensM6 - 41.00mS.VI 1957 ●
Serenar / Canon 28mm F/3.5 [I] LSM • Pancake lensM6 - 41.00mS.VI 1951 ●
Canon 28mm F/3.5 [II] LSM • Pancake lensM6 - 41.00m⌀40 1957 ●
Cosina Voigtlander Ultron 28mm F/1.9 Aspherical LSMM9 - 70.70m⌀46 2001 ●
Cosina Voigtlander Snapshot-Skopar 25mm F/4 MC LSMM7 - 50.70m⌀39 1999 ●
Cosina Voigtlander Color-Skopar 28mm F/3.5 LSM • Pancake lensM7 - 50.70m⌀39 2002 ●
Cosina Voigtlander Color-Skopar 28mm F/2.8 Aspherical LSM • Pancake lensM8 - 50.70m⌀34 2023 ●
Leitz Hektor 28mm F/6.3 [HOOPY / 11000, HOOPY-CHROM, HOOPY-B]M5 - 31.00mE34 1935 ●
Leitz Wetzlar Summaron 28mm F/5.6 [SNOOX / 11501, SNOOX / 11001]M6 - 41.00mA36 1956 ●
Minolta G-Rokkor 28mm F/3.5 LSM (2000 units) • Pancake lensM5 - 50.80m⌀40.5 1998 ●
Nippon Kogaku W-Nikkor·C 25mm F/4 LSM (950 units)M4 - 43.5 ft.S.VI 1953 ●
Nippon Kogaku W-Nikkor·C 28mm F/3.5 LSM (2392 units)M6 - 43.5 ft.⌀34.5 1952 ●
Ricoh GR 28mm F/2.8 LSM (3000 units) • Pancake lensM7 - 40.70m⌀40.5 1998 ●
Sankyo Kohki W-Komura 28mm F/3.5 LSMM6 - 41.00m⌀43 ●
Orion-15 28mm F/6 LSM
akaОРИОН-15 28mm F/6		M4 - 41.00m⌀40.5 1960 ●
FED-35 28mm F/4.5 LSM
akaФЭД 28mm F/4.5		M6 - 41.00mA36 ●
TTArtisan 28mm F/5.6 LSM • Pancake lensM7 - 41.00m⌀37 2023 ●
M-Series 28mm F/3.5 LSMM6 - 40.75m⌀43 ●
Carl Zeiss Jena Tessar 28mm F/8 LSMM4 - 31.00m ●

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