Additional Information on
NON-AI 18mm F/4.0 Nikkor Lens

File size: 30K HTML

Non-Ai Nikkor 18mm f/4.0 ultra-wideangle lens

Debuted during Photokina, 1974, this lens with its picture angle of 100° was after the
Nikkor 15mm f/5.6's sweeping view of 110°. But if you compared the lens with the older 15mm lens that was marketed at the same period of time, the 18mm f/4 ultra-wideangle lens is almost a f-stop brighter. It is also less bulky and much lighter in weight in comparison. With its f/4.0 speed, it is not the brightest lens you can find within the Nikkor ultrawide lens group, but this lens has been designed to achieve high image field flatness and to provide sufficient illumination for uniformly sharp, bright images over the entire picture field.

The original 18mm f/4 incorporates a lens construction of 13 elements in 9 groups and its retrofocus design ensures all reflex mirror functions for full aperture operational convenience in open aperture metering. It combines an exceptionally wide picture angle with a relatively compact and lightweight body, thus effectively bridging the gap between the large ultra-wideangle lenses and the more compact standard ultra-wideangle lenses of 20mm and 24mm.

18mmpreAI.jpg (25k) Loading....
Because of its extremely wide coverage, those days - this lens was a good solution to those photographers who might need such kind of optic for shooting architectural photography, scenery pictures, snapshots and for shooting in confined areas. The wide front lens barrel was designed to help cut down on unfavorable light reflections from outside the field, while at the same time it also served for mounting the slip-in Nikon Series 9 filters in combination with the lens hood. Thus, this lens is always recommended that the 86mm lens hood always be used while photographing.

The rubberized focusing ring may provide a little clue to its production period as very often, owners of these Non-Ai lenses may convert their optic to an Ai-Spec. Anyway, there is no significant disadvantage compared with the later series introduced as it employs similar optical construction with the later true-Ai version of this lens. Naturally, if ever it has, it is only confined to better compatibility with subsequent Ai Nikon SLR bodies introduced after 1977.

Nikon guide to compatible focusing screen(s) selection and Depth of Field calculation chart for this 18mm Ultra-wideangle lens. Download a file in a new browser window 72k.Gif

DOWNLOAD a copy of the layout of optical construction in PDF file (80k)


Focal Length: 18mm
Maximum Aperture: f/4.0; Lens Construction: 13 elements in 9 groups
Lens Coating: Multicoated with NIC; Picture Angle: 100
Exposure Measurement: via full aperture method; meter coupling prong provided
Distance Scale: Graduated in meters and feet from 0.3m (1ft.) to infinity (
OO); infrared index is provide.
Aperture scale: f/4 - f/22; Aperture diaphragm: Fully automatic
Lens Mount: Nikon bayonet mount; Meter coupling prong: Integrated (fully open exposure metering)
Attachment size: 86mm (P=1); Filter: Series 9 Slip-in Type
Hood: HN-15; Dimensions: 89mm dia. X 58.5mm length (3-1/2 in. X 2-5/6 in.)
Weight: 315g (11.1 oz);
Accessories Supplied: Rear protective cap LF-I (108-00-401); 86mm screw-in front lens cap; 86mm screw-in front lens hood HN-15; hard lens case CL-28 with strap (108-01-302), No.54 Lens Case; Optional Accessories: Seris 9 Slip-in filters

Nikon Product Code for this discontinued item is No.108-01-131
Content appeared in this section is largely extracted from Nikon Sales Manual, 1974/1976; Note: Starting serial number for this lens was believed to have started from: 173111 for this non-Ai version of the 18mm lens.

| NEXT | Pre-Ai data Sheet and Nikkor 18mm f/4.0 Non-Ai & Pre Ai | Nikkor Ai 18mm f/4.0 | Nikkor Ai & Ai-S f/3.5 |
| Message Board | for your Nikkor Optics in a shared environment
| Message Board | Specifically for Dispose or Looking for new/used Nikon/Nikkor photographic equipment

weblibrary.gif   Nippon Kogaku Rangefinder Resources | Nikon F | Nikon F2 | Nikon F3 | Nikon F4 | Nikon F5 | Nikon F6 | Nikkormat / Nikomat | Nikon FM Series | Nikon FE/ FA | Nikon EM/FG/FG20 | Nikon Digital SLRs | Nikon - Other models

Nikon MF RF-Nikkor lenses for Rangefinder cameras:- Main Index Page
Nikon Auto Focus Nikkor lenses:- Main Index Page
Nikon Manual Focus Nikkor lenses:-
Fisheye-Nikkor Lenses - Circular | Full Frame | Ultrawides Lenses - 13mm15mm18mm20mm | Wideangle Lenses - 24mm28mm35mm | Standard Lenses - 45mm 50mm 58mm | Telephoto Lenses - 85mm105mm135mm180mm & 200mm | Super-Telephoto Lenses - 300mm 400mm 500mm 600mm 800mm 1200mm |

Nikkor Link.jpg   Special Application lenses:
Micro-Nikkor Lenses - 50mm~55mm -60mm 85mm -105mm 200mm Micro-Zoom 70-180mm
Perspective Control (PC) - 28mm 35mm PC-Micro 85mm
Dedicated Lenses for Nikon F3AF: AF 80mm f/2.8 | AF 200mm f/3.5 EDIF
Depth of Field Control (DC): 105mm 135mm
Medical Nikkor: 120mm 200mm
Reflex-Nikkor Lenses - 500mm 1000mm 2000mm
Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
Nikon Series E Lenses: 28mm35mm50mm100mm135mm | E-Series Zoom lenses: 36~72mm75~150mm70~210mm

MF Zoom-Nikkor Lenses: 25~50mm | 28~45mm | 28~50mm | 28~85mm | 35~70mm | 36~72mm E | 35~85mm | 35~105mm | 35~135mm | 35~200mm | 43~86mm | 50~135mm | 50~300mm | 70~210mm E | 75~150mm E | 80~200mm | 85~250mm | 100~300mm | 180~600mm | 200~400mm | 200~600mm | 360~1200mm | 1200~1700mm

Tele-Converters: TC-1 | TC-2 | TC-200 | TC-201 | TC-300 | TC-301 | TC-14 | TC-14A | TC-14B | TC-14C | TC-14E | TC-16 | TC-16A | TC-20E

Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number: by: my friend, Rick Oleson by: Hansen, Lars Holst

Recommended Reading Reference on Nikon cameras and Nikkor lenses | about this photographic web site

Search.gif | Back | Main Index Page of Nikkor Resources | Back | Main Index Page of Pictorial History of Nikon SLRs

MIR Logo.gif   Home - Photography in Malaysia

leofoo.Gif Co-developed with my web buddy, Rick Oleson® & LARs.Gif Denmark, Creator of the Nikon Repair Group Mailing-List; A contributing effort to Michael Liu's Classic Nikon SLRs and Nikkor optic site.

Credit: MCLau®, who has helped to rewrite some of the content appeared this site. Chuck Hester® who has been helping me all along with the development of all these Nikon websites; Lars Holst Hansen, 'Hawkeye' who shares the same passion I have; Ms Rissa, Sales manager from Nikon Corporation Malaysia for granting permission to use some of the official content; Ted Wengelaar, Holland who has helped to provide many useful input relating to older Nikkor lenses; Some of the references on production serial numbers used in this site were extracted from Roland Vink's website; Hiura Shinsaku from Nikomat Club Japan. Lastly, to all the good people who has contributed their own expeience, resources or kind enough granted permission to use their images of their respective optic in this site. It is also a site to remember a long lost friend on the Net. Note:certain content and images appeared in this site were either scanned from official marketing leaflets & brochures published by Nikon and/or contribution from surfers who claimed originality of their work for educational purposes. The creator of the site will not be responsible for may discrepancies arise from such dispute except rectifying them after verification. "Nikon", "Nikkormat", "Nippon Kokagu KK" & "Nikkor" are registered tradename of Nikon Corporation Inc., Japan. Site made with an Apple IMac.