Brief information on

Nikon / Nippon Kogaku Japan Ultra-Micro-NIKKOR 1:1.2 f=29.5mm, 30mm f/1.2, 50mm f/1.8, 55mm f/2 lenses

Nippon Kogaku Japan Ultra-Micro-NIKKOR 1:1.2 f=29.5mm e-line; Ultra-Micro-NIKKOR 1:1.2 f=30mm e-line, h-line
Year introduced: - 1964 29.5mm, 1969, 30mm; Discontinued: no info

Nippon Kogaku KK, Japan Ultra-Micro-NIKKOR 1:2 f=29.5mm (29.5mm f/1.2) was developed by Nikon in 1964, it can actually be treated as the same as the 30mm /f1.2 introduced in 1969 because in quite a number of Nikon Sales Manual actually used 30mm f/1.2 even if the actual focal length was quoted as 29.5mm. Anyway, to be more appropriate, you can treat the 29.5mm /f1.2 as 30mm f/1.2 Type 1 or Mk I if you like to differentiate the two. The lens offers ultra-high resolution which reaches the maximum theoretical limit* of 1,250 lines/mm throughout its entire 2mm diamter image area. * This probably was apply to during that period as other selective UMN introduced at later stage possesed even higher resolving power to reach 1,650 lines/mm later. Anyway, at the time of its introduction the design and manufaturing standards had set a new milestone and had won high acclaim thoughout the world.
If you purely relate to the focal length of 29.5mm/30mm to possible dimension of the Ultra-Micro-NIKKOR 1:2 f=29.5mm, you will be damn surprise how it looks like. It wasn't pin-szied like the MACRO-NIKKOR, instead the entire lens setup was more like a huge telephoto lens with a picture angle of merely 3.8° -well, at least this particular area has all the element like a telephoto, huh ?

Focal Length: 29.5mm/30mm
maximum Aperture: f/1.2
Lens Construction: 9 elements in 6 groups
Standard Magnification: 1/25X
Picture Angle: 3.8
°
Overall working distance: 810mm
Object area:- 50mm
image area:- 2mm
Standard wavelength: 546nm(
e-line)
Aperture efficiency at image corner: 100% @ f/1.2 with 0% vignetting score
Distortion: -1.3%
Aerial resolving power: 1,250 lines/mm
e-line model, 1,600 lines h-line model
Aperture scale: f/1.2, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8
Lens Mount: Screw d=50mm p=0.75mm
Dimension (D) X (L):- 60mm x 230mm
Filter thread size:
40.5mm screw-in type
Weight:- 800g/1.76Ibs

<<<--- Unlike normal Nikkor lenses being arranged in group where the tallest lenses are usually the super telephotos or super-zoom; this photo shown the tallest two lenses are actually the UMN 29.5mm/30mm f/1.2 with almost the shortest focal length in the Ultra-Micro-NIKKOR lens family.


<<<--- Not a very good picture source of this Ultra-Micro-NIKKOR 1;1.2 f=30mm but at least you cna take a good look of how it looks like in side view.

Request
: Anyone has better info or pictures of these related optics ? Please mail my buddy: rick-oleson@yahoo.com

NOTE:- The specification usually mentioned the accessory filter thread size, mostly in 40.5mm or 50.3mm nad/or 62mm/72mm. The Ultra-Micro-NIKKOR also uses filters. These special filters have been specifically designed to develop the performance of UMN lenses to fullest extent.

They actually consist of two separate filter glasses, each with differing wavelength transmission factors, but bonded together and responsive to the wavelengths of the photo-sentitizer. In addition, they are light-discriminatory, transmitting only the e-line. The planes feature perfect flatness and parallelism and will detract in no way from the ultimate excellent resolving power of any Ultra-Micro-NIKKOR lens to which they are attached. A general guide to
e-line filters, filter sizes the relative UMN lenses:-

attachment size

applicable lens

40.5mm

UMN 28mm f/1.8; 29.5/30mm f/1.2, 55mm f/2

62mm

UMN 135mm f/4

72mm

UMN 125mm f/2.8, 155mm f/4

     
 
Nippon Kogaku Japan Ultra-Micro-NIKKOR 1:1.8e f=50mm & Ultra-Micro-NIKKOR 1:1.8h f=50mm Year introduced: 1969, Discontinued: No info

The Ultra-Micro-NIKKOR 1:1.8 f=50mm e-line was believed an upgrade from the UMN f/2 @55mm focal length and developed for photorepeaters. The image size has been increased from 12mm as found in the UMN 55mm 1:2 to 14mm in diameter, thus even at the reduction of 1/5X and it was still capable of covering the picture plance of a 10mm square. In addition, with its 600 lines/mm resolving power within the 12mm in diameter, it would deliver a higher quality performance exceeding the predeccessor, Ultra-Micro-NIKKOR 1:2 f=55mm e-line model.

The h-line Ultra-Micro-NIKKOR 1:1.8 f=50mm even can deliver higher resolving power where 650 lines/mm for 14mm image circle and/or 10mm square diameter or 800 lines/mm in smaller 10mm image circle. The image size are depends on actual usage of imprinting. Both lenses has a very different appearance from the previous model, looks more modern with a sleek design, cased within an aluminium lens barrel but external has a black rotary lens tube, so only the front section of the lens was shown with aluminium while the UMN 55/2 was the other way round. But optical construction of both lenses share similar, a rather complex 12 elements in 9 groups design for a "50mm" lens.

<<<--- Dimensions, measurement of UMN 50/1.8e
 

Technical Specifications for Nippon Kogaku Japan, Micro-Nikkor-NIKKOR 1:1.8 f=50mm e-line, h-line

Ultra-Micro-NIKKOR 1:1.8 f=50mm e-line type Ultra-Micro-NIKKOR 1:1.8 f=50mm h-line type
Focal Length: 49.2mm
maximum Aperture: f/1.8; Minimum Aperture: f/1.8 FIXED
Lens Construction: 12 elements in 9 groups
Standard Magnification: 1/5 X
Picture Angle: 13.1
°
Overall working distance: 315mm
Object area:- 70mm
image area:- 14mm
Standard wavelength: 546.1 milli-micron (
e-line);
Aperture efficiency at image corner: 100% @ f/1.8 with 0% vignetting score
Distortion: -0.004%
Aerial resolving power:
500 lines/mm - 14mm image circle;
600 lines/mm - 12mm image circle
Aperture scale: f/1.8
Lens Mount: Screw d=52mm p=1mm
Dimension (D) X (L):- 58mm x 101mm
Filter thread size:
52mm screw-in type
Weight:- 642g

Focal Length: 49.2mm
maximum Aperture: f/1.8; Minimum Aperture: f/1.8 FIXED
Lens Construction: 12 elements in 9 groups
Standard Magnification: 1/5 X
Picture Angle: 7.6
°
Overall working distance: 315mm
Object area:- 70mm
image area:- 14mm
Standard wavelength:
435 milli-micron (
g-line); 404 milli-micron (h-line)
Aperture efficiency at image corner: 100% @ f/1.8 with 0% vignetting score
Distortion: -0.002%
Aerial resolving power:
650 lines/mm - 14mm image circle;
800 lines/mm - 10mm image circle
Aperture scale: f/1.8
Lens Mount: Screw d=39mm p=1/26"
Dimension (D) X (L):- 51mm x 70mm
Filter thread size:
40.5mm screw-in type
Weight:- 700g

Nippon Kogaku Japan Ultra-Micro-NIKKOR 1:2 f=55mm e-line & Ultra-Micro-NIKKOR 1:2 f=55mm h-line
Year introduced: 1965, Discontinued: No info

The Ultra-Micro-NIKKOR 1:2 f=55mm was the first lens offered between the 50~55mm focal length. Introduced in 1965, and it was designed for making photomasks under step & repeat method in manufacturing of IC and LSI for semiconductor companies. It offered production printing on a wide plance of 12mm in diameter with a magnification of 1/4X. The lens mount and working distance for this lens was actually similar with the Ultra-Micro-NIKKOR 1:1.8 f=28mm series. The standard wavelength is 546 milli-micro (e-line) with resolving power delivering 500 lines/mm on an image circle of 12mm. The lens has a chrome on brass lens barrel with front to mid section in black paint. Within, the lens construction consists of a 8 elements in 6 groups optical design.

The subsequent Ultra-Micro-NIKKOR 1:2 f=55mm h-line model shares most of the basic lens features with the e-line model, except for picture angle was narrower @ 8.2° as compared to 9.8° on the e-line model and relates to object/image area differs from 48mm/12mm to 40mm/10mm on the h-line model; it has a higher resoluton at 650 lines/mm @ 10mm image circle and standard wavelngth at 404.7 milli-micro h-line and 435 milli-micron on g-line. This model shares similar 39mm screw lens mount.

<<<--- A rough picture showing the difference in form and design from 1965's 55mm f/2 to the 1969's 50mm f/1.8 model. Note: comparison among the few are not to scale.

Request: Anyone has better info or pictures of these related optics ? Please mail my buddy: rick-oleson@yahoo.com
   
Ultra-Micro-NIKKOR 1:2 f=55mm e-line type Ultra-Micro-NIKKOR 1:2 f=55mm h-line type
Focal Length: 55.8mm
maximum Aperture: f/2
Lens Construction: 8 elements in 6 groups
Standard Magnification: 1/4X
Picture Angle: 9.8
°
Overall working distance: 315mm
Object area:- 48mm
image area:- 12mm
Standard wavelength: 546.1 milli-micron (
e-line);
Aperture efficiency at image corner: 100% @ f/2 with 0% vignetting score
Distortion: -0.00%
Aerial resolving power: 500 lines/mm - 12mm image circle;
Aperture scale: f/2, f/2.8, f/4, f/5.6, f/8
Lens Mount: Screw d=39mm p=1/26"
Dimension (D) X (L):- 51mm x 65mm
Filter thread size:
40.5mm screw-in type
Weight:- 325g/11.5oz
Focal Length: 55.8mm
maximum Aperture: f/2
Lens Construction: 8 elements in 6 groups
Standard Magnification: 1/4X
Picture Angle: 8.2
°
Overall working distance: 315mm
Object area:- 40mm
image area:- 10mm
Standard wavelength:
404.7 milli-micron (
h-line); 435 milli-micron (g-line);
Aperture efficiency at image corner: 100% @ f/2 with 0% vignetting score
Distortion: -0.01%
Aerial resolving power: 650 lines/mm - 10mm image circle;
Aperture scale: f/2, f/2.8, f/4, f/5.6, f/8
Lens Mount: Screw d=39mm p=1/26"
Dimension (D) X (L):- 51mm x 65mm
Filter thread size:
40.5mm screw-in type
Weight:- 325g/11.5oz
 

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IIndex Page: Nippon Kogaku K.K. S-Mount rangefinder version Micro-NIKKOR.C 1:3.5 f=5cm (50mm f/3.5)
Page 1:- Micro-NIKKOR 70mm f/5 / Micro-NIKKOR 150mm/5.6 / Macro-NIKKOR Series :- 19/2.8, 35mm f/4.5, 65mm/4.5, 120mm f/6.3
Page 2:-
Ultra-Micro-NIKKOR Series -28mm focal length models
Page 3:- Ultra-Micro-NIKKOR Series - 29.5/30mm, 50 & 55mm focal length models
Page 4:-
Ultra-Micro-NIKKOR Series - 105, 125, 135mm & 150mm focal length models
Page 5:-
Ultra-Micro-NIKKOR Series - 155, 165, 225, 250 & 300mm focal length models
Page 6:-
General information on other special purpose NIKKOR lenses for industrial. technical and science applications

Nikon RF-Nikkor lenses:- Main Index Page

W-Nikkor-O 1:4 f=2.1cm | W-Nikkor.C 1:4 f=2.5cm | W-Nikkor.C 1:3.5 f= 2.8cm | W-Nikkor.C 3.5cm lens Group (3.5/2.5/1.8) | Stereo-Nikkor 1:3.5 f=3.5cm | 5cm (50mm) lens group | RF Micro-Nikkor 1:3.5 f=5cm (in progress) | Nikkor-P.C 1:2 f=8.5cm lens group / Nikkor-S.C 1:1.5 f=8.5cm lens group | Nikkor-P.C 1:2.5 f=10.5cm lens group / Nikkor-T 1:4 f=10.5cm | Nikkor-Q.C 13.5cm lens group: 135/4, 135/3.5 Early / Last Version, 135/4 Bellow lens | Nikkor-H 1:2.5 f=18cm | Nikkor-Q 1:4 f=25cm | Nikkor-T 1:4.5 f=35cm | Nikkor-T.C 1:5 f=50cm | Reflex-Nikkor 100cm f/6.3

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