Data sheet: Nikon series E 50 mm f/1.8 (silver ring)

Pekka Buttler, 08/2022

Pictured: Nikon series E 50 mm f/1.8 (silver ring version)


The table below summarizes the lens’ key specifications:

Brand:Nikon (Nikkor)Lens nameSeries E 50 mm 1:1.8
Focal length(s)150 mmAngle-of-view246°
Maximum Aperturef/1.8In Production1981–1985
Lens mountNikon FSubfamily (if applicable)Series E (Ai-s)
Length327,8 mmDiameter462,5 mm
Filter ring diameter52 mmWeight157 grams
Lens element count6Lens group count5
Aperture blades (S/R/C)57 SFocus throw140 °
Minimum focusing distance60 cmsMaximum magnification1:9,6
Has manual aperture ringYESHas Manual focus ringYES

Further notes:
• This lens – the series E 50 mm f/1.8 – is the only series E lens that shows a distinct difference between all-black and silver ring variants: The all-black version has an identical optical layout, but is around 20 grams lighter and 3,5 mm shorter. Hence, they will be treated separately.
• Even though longer than the all-black version, also the silver-ring version qualifies as a pancake lens.
• The lens’ dedicated lens hood is the HR-4 (a rubber, collapsible, filter-thread mounted hood).
• Series E lenses are Ai-s compatible.

A brief genealogy of Nikon SLR lens types

Nikon is undoubtedly one of the great names in 35 mm SLR photography. The Nikon F mount has been in continuous production since 1959. During that time, the mount has developed/changed in some detail, however without ever fully sacrificing compatibility.

In short (a longer version is here), the development of Nikon’s SLR lenses can be traced as follows:
• 1959–1977: Pre-Ai. Manual focus lenses that use ‘rabbit ears’ to communicate selected aperture with the camera body.
• 1977–1986: Ai and Ai-s. Manual focus lenses that may have ‘rabbit ears’ for backward compatibility, but are designed to communicate selected aperture with the camera body through indentations in base of aperture control ring.
• 1986–today: AF and AF-D. Autofocus lenses that do not have a focusing motor within the lens, but rely on the focus motor within the camera. All AF and AF-D lenses are simultaneously Ai-s lenses (they are Ai-s lenses extended with AF) 6
• 1996–today AF-S and AF-P. Autofocus lenses that have an internal focusing motor and do not rely on the body having a focusing motor.

Series E lenses are – in this respect – a minor oddity. Intended as an economy offering (E as in economy) to forestall the onslaught of 3rd party lenses, Series E lenses are technically entirely Ai-s compatible lenses. Read more on the Series E here.

The optical design first pioneered in the all-black series E 50/1.8 (800 000 copies during 1979–1981) was reused in this lens (1,4 million copies during 1981-1985), and subsequently reused again in the Nikkor Ai-s (Japan) 50/1.8, the Nikkor Ai-s (new) 50/1.8 and three consecutive Nikkor AF 50/1.8 versions (3,6 million copies to date), making this one of Nikon’s most successful lens designs ever.

For a summary of the genealogy of Nikkor’s 50 mm f/1.8 designs, see below:

yearsSeriesoptical constructionaperture bladesMFDnotes, links
1978–1982Ai6 elements in 5 groups7, straight0,45 m[data sheet]
1979–1981series E6 elements in 5 groups7, straight0,6 mpancake, all-black design
1980–1982Ai-s6 elements in 5 groups7, straight0,45 mpancake, for Japanese market
1981–1985series E6 elements in 5 groups7, straight0,6 mpancake, silver-ring design
[this lens]
1981–1985Ai-s6 elements in 5 groups7, straight0,45for export market
1985–2005Ai-s New6 elements in 5 groups7, straight0,6pancake, plastic focus ring
[data sheet]
1986–1990AF6 elements in 5 groups7, straight0,45plastic focus ring
[data sheet]
1990–2001AF new6 elements in 5 groups7, straight0,45rubber focus ring
2002–todayAF-D6 elements in 5 groups7, straight0,45new barrel design
[data sheet]
2011–todayAF-S; G7 elements in 6 groups7, rounded0,45no aperture ring
2018–todayZ12 elements in 9 groups9, rounded0,4


Besides adapting, this lens can be used natively on all current high-end Nikon dSLRs and several earlier medium-to-high-end older Nikon dSLRs7. Likewise, if jury-gigged with rabbit ears, it can be natively used on all Nikon F-mount film cameras ever produced (without the rabbit ears, it is limited to post–1977 bodies).

Thanks to being a fully manual lens (manual aperture, manual focus), the lens can be adapted to all mirrorless cameras using a suitable dumb adapter (and such adapters are easy to find). Moreover, a wide range of special adapters (helicoid adapters, tilt/shift adapters, speed boosters) for using Nikon F lenses on most mirrorless systems are available.

Using Nikon F lenses on non-Nikon SLRs and dSLRs is likewise a distinct possibility. Thanks to the relatively generous flange focal distance of the Nikon F mount (46,5 mm), adapter rings for all dSLR mounts are available as well as for a goodly portion of film-era SLR mounts. Such rings may not allow for auto aperture, but even then the lenses can be used in stop-down metering mode.


1 Focal length is (unless stated otherwise) given in absolute terms, and not in Full-frame equivalent. For an understanding of whether the lens is wide/tele, see ‘Angle-of-view’.

2 Picture angle is given in degrees and concerns the diagonal picture angle. Rule of thumb:
> 90 ° ==> Ultra-wide-angle
70–90 ° ==> Wide-angle
50–70 ° ==> Moderate wide-angle
40–50 ° ==> ‘Standard’ or ‘normal’ lens
20–40 ° ==> Short tele lens
10-20 ° ==> Tele lens
5-10 ° ==> Long tele lens
< 5 ° ==> Ultra-tele lens

3 Length is given from the mount flange to the front of lens at infinity.

4 Diameter excludes protrusions such as rabbit ears or stop-down levers.

5 S=straight; R=rounded; C=(almost)circular at all apertures.

6 There is a further sub-class of AF-D lenses called AF-I lenses that are otherwise AF-D lenses (meaning, fully Ai-s compatible), but have an internal focus motor. Only long tele lenses were made in AF-I variants.

7 As of this writing, the following Nikon dSLRs fully support Aperture priority and manual metered modes on Nikkor Ai-s lenses: D2, D3, D4, D5, D6, D200, D300, D300s, D500, D600, D610, D700, D750, D780, D800, D800E, D810, D850, D7000, D7100, D7200

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