Nikon AI-S Nikkor 105mm F/2.5

Short telephoto prime lens • Film era • Discontinued

  • Announced:
  • · August 1981
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · Nikon NIKKOR 105mm 1:2.5
  • Class:
  • · Fast full-frame short telephoto prime lens
  • System:
  • · Nikon F (1959)

Abbreviations

AI-S A manual focus lens with automatic maximum aperture indexing and automatic aperture control. Learn more

Model history (5)

■Nippon Kogaku Nikkor-P Auto 105mm F/2.5A5 - 31.20m⌀52 1959 ●
■Nikon Nikkor-P[·C] Auto 105mm F/2.5A5 - 41.00m⌀52 1971 ●
■Nikon Nikkor 105mm F/2.5A5 - 41.00m⌀52 1974 ●
■Nikon AI Nikkor 105mm F/2.5A5 - 41.00m⌀52 1977 ●
■Nikon AI-S Nikkor 105mm F/2.5A5 - 41.00m⌀52 1981 ●

Specification

Optical design:
35mm full frame
105mm
F/2.5
5 elements in 4 groups
Nikon F [46.5mm]
23.3° (35mm full frame)
On Nikon D APS-C [1.53x] cameras:
35mm equivalent focal length:
160.7mm (in terms of field of view)
35mm equivalent speed:
F/3.8 (in terms of depth of field)
Diagonal angle of view:
15.3°
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings + Auto Exposure setting)
7 (seven)
Focusing:
1m
<No data>
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
435g
⌀64×69.5mm
Accessories:
Screw-type 52mm
Built-in telescopic round
Nikon Teleconverter TC-14 → 147mm F/3.5
Nikon Teleconverter TC-14A → 147mm F/3.5
Nikon Teleconverter TC-200 → 210mm F/5
Nikon Teleconverter TC-201 → 210mm F/5

Sources of data

  • Manufacturer's technical data.
  • Nikkor lenses booklet (1984).
  • Nikon dealer notebook pages.
  • Nikon dealer catalogue.
  • Nikon Full Line Product Guide (1996-1997) (August 1996).

Manufacturer description

Considered the classic portrait lens with picture coverage of 23°. Relatively large maximum aperture is convenient for pinpoint focusing and shooting in available light. Focuses down to 42". 52mm filter size. Built-in lens hood.

From the editor

A classic old Nikon lens design that, with the AI-S version, is in its highly-refined fourth incarnation using the same super sharp optical formula. The reasonable if slightly unusual f/2.5 maximum aperture keeps size and weight (435g) down for a prime lens that is still quite fast. The big brother of this lens is the AI-S 105/1.8, which also has wonderful performance, but is much larger and heavier (580g).

The AI-S Nikkor 105/2.5 lens is an exquisitely manufactured and refined lens, with great optical performance, silky smooth manual focusing and aperture adjustment, and robust long-lasting construction.

Of course, these days, many photographers have moved from small prime lenses to standard autofocus zooms for many applications, either consumer grade or the professional f/2.8 trinity. A fast prime like the AF 105/2D is no doubt wonderful for portraiture, but among all the 105mm prime lens choices for travel photography, this AI-S 105/2.5 is one of the best.

Notes

  • This AI-S lens was designed for Nikon FA, FG, N2000, N6000 AI-S cameras and Nikon F3, EL2, EM, FE, FE2, FE10, FG-20, FM, FM2, FM10, FM3A, Nikkormat FT3 AI cameras. The automatic aperture control will only be available on AI-S cameras.
  • AI and AI-S lenses are backward compatible with Nikon F, F2, Nikkormat FS, FT, FT2, FTN, EL, ELW cameras.
  • On Nikon digital SLR cameras, the automatic exposure metering with AI and AI-S lenses will not be available on D40, D40X, D60, D70, D70s, D80, D3000-D3500, D5000-D5600 series.

Other short telephoto prime lenses in the Nikon F system

■Nikon F mount (12)
Nikon AI Nikkor 85mm F/2A5 - 50.85m⌀52 1977 ●
Nikon AI-S Nikkor 85mm F/2A5 - 50.85m⌀52 1981 ●
Nippon Kogaku / Nikon Nikkor-H[·C] Auto 85mm F/1.8A6 - 41.00m⌀52 1964 ●
Nikon Nikkor 85mm F/1.8A6 - 40.85m⌀52 1975 ●
Nikon AI-S Nikkor 85mm F/1.4A7 - 50.85m⌀72 1981 ●
Nikon Series E 100mm F/2.8A4 - 41.00m⌀52 1979 ●
Nippon Kogaku Nikkor-T 105mm F/4P3 - 30.80m⌀34.5 1960 ●
Nippon Kogaku Nikkor-P Auto 105mm F/2.5A5 - 31.20m⌀52 1959 ●
Nikon Nikkor-P[·C] Auto 105mm F/2.5A5 - 41.00m⌀52 1971 ●
Nikon Nikkor 105mm F/2.5A5 - 41.00m⌀52 1974 ●
Nikon AI Nikkor 105mm F/2.5A5 - 41.00m⌀52 1977 ●
Nikon AI-S Nikkor 105mm F/1.8A5 - 51.00m⌀62 1981 ●

Lenses with similar focal length

■Nikon F mount (6)
Venus Optics Laowa 105mm F/2 [T3.2] Smooth Trans Focus SLRM11 - 80.90m⌀67 2016 ●
Sankyo Kohki Komura 105mm F/2P5 - 41.50m⌀58 ●
Sankyo Kohki Komura 105mm F/2.5P5 - 41.50m⌀48 ●
Soligor Auto 100mm F/2 MC (s/n 2xxxxxx)
akaSpiratone Minitel 100mm F/2 Pluracoat		A6 - 41.50m⌀58 ●
Kaleinar-5N 100mm F/2.8 MC
akaArsat H 100mm F/2.8
akaКАЛЕЙНАР-5Н 100mm F/2.8 МС		A5 - 40.80m⌀52 1983 ●
ZEISS Otus Apo Sonnar T* 100mm F/1.4 ZE / ZF.2A14 - 111.00mE86 2019 ●
■Interchangeable mount (11)
Sankyo Kohki Komura 105mm F/2 [Unidapter]P5 - 41.50m⌀58 1965 ●
Sankyo Kohki Komura 100mm F/1.8 [Unidapter]P5 - 41.40m⌀62 ●
Sankyo Kohki Komura 105mm F/2.5 [Unidapter]P5 - ?1.00m⌀48 ●
Sankyo Kohki Super-Komura 100mm F/2.5 [Unidapter Auto]A5 - ?0.90m⌀55 ●
Komuranon 100mm F/2.5 K·M·CA5 - 40.90m⌀58 1974 ●
Soligor Tele-Auto 105mm F/2.8 (s/n 1xxxxxxx) [T-4]A4 - 41.50m⌀49 ●
Soligor Telephoto 105mm F/2.8 [T]P4 - 44 ft.⌀46 ●
Vega-13A 100mm F/2.8 [T]
akaВЕГА-13А 100mm F/2.8		P5 - 50.80m⌀58 ●
Tamron 105mm F/2.5 CT-105 [Adaptall]A4 - 41.30m⌀52 1976 ●
Tamron Auto 105mm F/2.5 [Adapt-A-Matic]A4 - 41.00m⌀52 1972 ●
Vivitar Auto 105mm F/2.8 (s/n 37xxxxxxx) [T-4]A4 - 41.50m⌀49 ●

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