Additional
information on
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RF-Nikkor-H
1:2.5 f=18cm (180mm f/2.5)
fast speed Telephoto lens for Nikon S-Mount Rangefinder cameras
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HTML File Size: 60K Loading ...3rd DRAFT- 06.04.2011
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The Sonnar design
was was an artful optical invention by Dr. Ludwig
Bertele which
was still remained as a benchmark design in optical history. The first Sonnar lens
for 35mm photography was believed to be specifically designed for the Zeiss Ikon
Contax I* back in 1932. The name "Olympia
Sonnar" was deprived from a telephoto lens with a classic Sonnar design, introduced
for photographers covering the Berlin
Olympic Games** during Hitler reigned
Germany in 1936. The fast speed telephoto lens has a rather colorful background which
was fueled by the speculative relation with the controversial German lady video/photographer
LENI RIEFENSTAHL (1902~2003). All these stuffs had many people
affectionately referred it as "Olympia Sonnar" and it has been officially
renamed in such a way by respective creator(s) at later stages.
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Credit: Image at this very
old chrome version of the 180mm
Olympia Sonnar
courtesy of Mr. Kelvin Li from his popular gokelvincameras
@ Ebay Store
which retails for many hard-to-find Nikon, canon, Contax oldies. Image Copyright
© 2003. All rights reserved. * Some termed the
Kine-Exakta, 1936. ** This source said
it was for the Winter Olympic at Garmisch-Partenkirchen. *** Zeiss Jena version
180mm f/2.8 Sonnar for Exakta. **** Picture profile
on Carl Zeiss JENA Tele-Tessar 180mm f/6.3, courtesy of Leica
Shop. |
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Ref. extracted
from Alexander Lee's article on the SONNAR 1930 / Dr. Ludwig Bertele:- Zeiss:- Ernemann Company was taken
over by the Zeiss-Ikon combine, and shortly in 1930, Ludwig Bertele started the design
of the Sonnar type lens based on the second (f/1.8) Ernostar type. It was completed
in 1931, and was a f/2 Sonnar. The Sonnar negative triplet consisted of a high-index
outside and a lower-index element between. In 1932, he released a f/1.5 version with
a strong cemented interface on the rear component. This allowed correction on the
higher-order spherical aberration which was needed in a lens of the high aperture.
The name Sonnar had been used previously by the Contessa Company for a camera with
a Tessar type lens, but as Zeiss-Ikon absorbed Contessa, they acquired rights to
the name. The design uses less elements than Planar, so when coating tech was primitive,
the lens had much less flare due to less surfaces in design. Simpler than Planar,
smaller and comparatively inexpensive ... " Credit: -Alexander Lee - . |
I have presented
a brief account of the Carl Zeiss
18cm f/2.8 Olympia Sonnar
as well as some basic info on the Leica options earlier as introductory
on this Nikkor page because German equivalent had one way of another, a close relationship
with the Nikon version - both optically#
as well
as event/happening occurred in the market place. First of all, introduction of the
Nikon Reflex Housing back in the early '50 had actually opened up a new chapter for
the Nikon rangefinder system. It was no secret that during the early days, the mighty
German optical industry which were so dominant in the market was the Japanese imitating
target. As a whole, basic system architecture and road map for further development
in the budding Japanese optical industry had the established German framework to
replicate. So when Carl Zeiss JENA introduced two killer long telephoto lenses 180mm
f/2.8 Olympia Sonnar (& the 300/f4) in 1952, Nikon just had to counter-react
the German initiative with a slightly faster f/2.5 maximum aperture equivalent spec
lens to safeguard their interest as the S-mount Rangefinder system was still largely
at its infancy. The RF
Nikkor-H 1:2.5 f=18cm (180mm f/2.5) telephoto lens was released just barely a year after the Olympia
Sonnar 180/2.8's debut. At the time of its introduction, it was once regarded as
world's fastest telephoto lens and this "new" inclusion in the RF Nikkor
lens family had been used throughout for Nikon marketing campaign in rebranding a
new image for the Nikon bayonet mount S-series system. In fact, other than the 1951's
RF Nikkor 8.5cm f/1.5 - for the first time, the RF Nikkor telephoto lens group finally
had another fast lens speed telephoto lens to serve professional photographers. Along
with another two exotic super telephoto/Mirror lens (RF 50cm f/5.0 (1955) / RF Reflex
Nikkor 100cm f/6.3 (06.1959); the Japanese maker was beginning to emerge as a respectable
force to begin attacking the professional users market. The entire event was further
aided with a excellently crafted, pro-calibre Nikon
SP rangefinder camera in 1957.
After the mid '50, the expanded RF Nikkor long telephoto lens group was considered
good enough both optical and mechanically to cater for needs of professional sports,
news photographers as well as photojournalists worldwide. |
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<<<--- A rare combination in a Nikon F2 with N/F Tube setup, and mounted
on with an RF Nikkor 180mm f/2.5 telephoto lens w/ HN-10 metal lens hood.
Credit: Image of this
Nikkor-H
18cm F/2.5
lens Copyright © 2003. Simon Pulman-Jones® <spulma@sapient.com> All Rights
Reserved. Please respect the visual property of the photo contributor.
NOTE:
For a quick explanation
on PRESET
mechanism where it
relates.
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Nikon (Nippon
Kogaku K.K.) RF Nikkor-H 1:2.5 f=18cm
(180mm f/2.5) fast
speed telephoto lens for Nikon Bayonet S-Mount Rangefinder cameras Year Introduced:
Nov.1953 #; Discontinued:
probably in 1963
Personally, I think Nikon had two very interesting designing concept that related
to their development of long focal length lenses. For
the bayonet S-mount Rangefinder, it was an accessory called Nikon Reflex Housing
that had enabled many rangefinder version of the telephoto lenses beyond 135mm to
be realized. On the other hand, for the F-Mount reflex Nikon, the Nikon CU1 / AU-1 Focusing Unit which has a design that separates
Nikkor long telephoto lenses into two-parts component was another. I supposed basic
concept of the later (AU/CU1 Unit) more of less carried over with a trace of the
original idea deprived from the rangefinder Nikon RF Reflex Housing. Basically, the
restrictive / inaccuracy for focusing in Rangefinder system has long been a technological
barrier for development of long telephoto lenses. The Nikon Reflex Housing device
was a timely solution which indirectly had expanded capabilities of rangefinder cameras
beyond traditional short focal length usage. Although Nikon never had pioneered the
idea (Leica did) but they had perfected the concept for own system use. It was considered
as an important component for the development of the many long telephoto lenses during
the rangefinder photography days for Nikon.
* Ref:- Except for
Mr. R. Rotoloni as well as Nikon Japan Nikkor Club Article, who stated it was produced
in November, 1953, many other sources which include the Nikon Rangefinder Publication
suggested it was produced marketed in 1956. Peter Brackzo Nikon Handbook suggested
another, June, 1955. Confusing, but I choose R. Rotoloni / Japan Nikkor Club site
as reference date. Nikon Articles says ".. The origin of the lens having specifications
of 180 mm f/2.8 goes back to "NIKKOR Auto 180 mm f/2.8" that was released
to the press only for the Sapporo Pre-Olympics in 1970 and released to general users
in the next year 1971. The focal length of 180 mm further goes back to "NIKKOR-H
18 cm f/2.5" released for Nikon S in 1953 and this lens has a preset stop and
was too large and heavy for handheld shooting...". by OHSHITA, Kouichi for Nikkor Club
- # Nikon stated date
in their official web site. Other sources: Nikon RF illustrated History also suggested
11.1953; but it was mentioned as 06.1955 (Nikon hand book). |
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Basically the Reflex Housing
was just an accessory designed to fit between the camera and a short mount long focal
length lens. Like an extension tube, it adds distance between normal lenses in between.
It can be used in conjunction with a Bellow Unit as well as for macrophotography
with a Micro-Nikkor. It is equipped with a single mirror within housing, projecting
a reverse image for focusing - so it carries a single principle of a reflex camera.
The housing was also supplied with a Magnifier Finder for pinpoint focusing. Picture
taking is via a double cable release method (one raised the mirror, another trip
the shutter release). So far, Nikon had introduced two known models, Model 1/ Model 2 - with the latter has a better lens
handling/focusing properties. Besides, it has option for alternate angle finder to
choose from (Model 2). Go to |
NIKON
REFLEX HOUSING SECTION
| for
further info.
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The showcased
lens here can be considered has a very well kept condition for a 1953 product. The
HN-10 lens hood doesn't looks like an original hood for this lens (refer to the Lens
hoods section below).
Credit: Image of this Nikkor-H
18cm F/2.5
lens Copyright © 2003. Simon Pulman-Jones® <spulma@ sapient.com> All Rights
Reserved. Please respect the visual property of the contributor.
|
With the exception such as Nikkor
1:1.8 f=3.5cm, Nikkor-N 1:1.1 f=5cm (50mm f/1.1), 8cm lens group (esp. the Nikkor-S
1:1.5 f=8.5cm (85mm f/1.5); the lack of larger aperture lenses in the RF lens group
probably had made the Nikkor f=2.5 f=18cm lens stood up among the rangefinder telephoto
lens group. But I would regard most of the telephoto RF lenses can easily fit into
same category of exotic lenses too. Just imagine the likes of a RF Nikkor 50cm f/5.0
super-telephoto or even the Mirror-Nikkor 100cm f/6.3 - omitting the optical performance,
in terms of basic lens spec, don't you think they came close with series of large
aperture super-telephoto lenses Nikon offers today ? So, A 180mm focal length with
a fast f/2.5 maximum aperture during those days for the rangefinder was just like
an equivalent 300mm
f/2.8 Nikkor super
telephoto magnifies today. The main differences are just the affordability factor
which would otherwise restricted them as mass market product. For an example, for
most ordinary photographer who may not be a full time professional, the featured
Nikkor 180mm f/2.5 here was has a listed price tag of approx. 87,000 yen, excluding
Reflex Housing. This was considered as not a cheap lens at all back in 1956. Probably
this was one of the reason, there were only 1,200 units of this lens were being produced
so far.
Due to its extraordinary light gathering power which has resulted the 18cm Nikkor-H
tele lens with quite a sizable dimension. No known chrome version had surfaced so
far and thus, we can safely conclude there was only the basic black paint version
is available. The lens uses a mix of brass, aluminum alloy in kits basic body construction
and was coated in black satin gross finish. This mainly has contributed to its weight
factor (it weighs a hefty 1.695kg !). Overall, the lens resembles most of the rigid
and rugged physical appearance that found on many of those early lenses. The lens
was offered with only a preset diaphragm which stops down to a minimum aperture of
f/32 - this is useful to mix the extended depth of field control with the compressed
perspective optical nature. When the lens is coupled to a companion reflex housing,
I wouldn't suggest the combination is very friendly for handheld shooting. I would
think lens handing and shooting convenience using the lens with a Nikon F will make
it a easier lens to work with for general photography - even for handheld. It can
close focus down to approx. 7ft. and maximum magnification is approx. 3.6X - impressive
indeed for such an old design optic which can be good enough for close-focus or frame-filling
portraiture and/or other similar usage. |
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The two
versions:-
Earlier ones has the distance scales in feet ONLY but the 2nd version with BOTH scales
in feet and Metres (Take note on the serial number of the two displayed models here).
This is NOT a big issue, it was just a update but there was nothing involved with
optically so, you may just use this as a quick visual guide to differentiate the
earlier and later version, that is all.
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Credit: All images courtesy
of Mr. Kelvin Li from his popular gokelvincameras
@ Ebay Store
which retails for many hard-to-find Nikon, canon, Contax oldies. Image Copyright
© 2008. All rights reserved. Please respect the visual property of the contributing
photographer. |
Both the exposed
front and a slightly recessed rear lens element was quite a large piece of optical
glass. Generally it was accepted by most people that the lenses introduced during
this era was singularly-coated. Typically, the external reflective lens surface projects
a light purple tint/color. In terms of lens handling, the lens has an excellent display
of depth of field scales. But as it is a telephoto, these scales are compressed tightly,
making visual references quite difficult to refer. The DOF scales provide for f/32,
f/16, f/80 and f/2.5 with the last almost not practical as a form of quick visual
guide. I would think depth of field preview on the camera section can be more effective
as well as faster for such purpose during shooting sequence. All the control rings
appear on the lens barrel had been thoughtfully designed in such a way that each
has a different grip-pattern to facilitate easy feel during shooting without diverting
attention to check the right grip of each function. As mentioned earlier, there were
two known variation. Early units only has distance scales printed in Feet only
while subsequent model produced have been added / improved with dual-reading scales
in feet as well as metric scales. It was also interesting to note the lens actually
was provided with a built-in tripod collar. As you may aware the reflex Housing also
has one of this place; so, probably Nikon had already anticipated the lens can also
be used on the reflex cameras via the N-F introduced later and the on lens built-in
collar should comes in handy. I do noticed most of the used units that surface over
the years usually show very heavy signs of use. Typically, the coated black paint
worn off on the barrel (see an illustrative model above). Well, this may also depends
on individual use, the sample that shows at the bottom was probably an early '60
produce was very well maintained.
Unlike the later versions of the 180mm tele-lenses; this rangefinder version does
not has a built-in lens hood. It was a metal hood and was supplied as optional accessory.
The correct
filter size should be 82mm (P=0.75) which is not easily accessible in the market.
You can use either Screw-in type or Series IX front attaching accessories. Generally, other
than truly using the lens for the purpose of photography, from another perspective
as collectible mechanize optic, usually an enthusiast will seek from the used equipment
market for Nikon system accessories to retain original flavor as a oldie collection. |
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Top:-
Rotational Views of a typical earlier model, shown unit carries lens S/N 473811
Credit: 3 Images above
courtesy of Mr. Simon Pulman-Jones® <spulma@sapient.com> |
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<<<
---This is another
version which has dual color scales on metric as well as in feet. Next, even the
tripod socket was in black paint coated. Compare this with the earlier model with
only the scales printed in feet as well as the different chrome tripod socket base
plate above. I would think the dua; scales model should be the late release.
|
# NOTE:- While I was trying to seek some
references, I did observed many online discussions often relate the Nikkor telephoto
as a form of "copycat-effort" to the equivalent of the Zeiss 18cm
f/2.8 Sonnar telephoto lens. Below, it has taken me a while to gather information
from a few sources to present the different formulation used in their respective
optical design between the two major brand names. Figures/illustrations (E=Elements used; G=Groups)
below should present and/or help to revert wrongful impression all along and hereby
recognizing Nikon original effort in enabling this fast speed rangefinder telephoto
lens to be possible. In general, the lens uses a rather unusual maximum aperture
of f/2.5 and this has a direct influence on the resulting optical design. In many
ways, Nikon had their own opinion that correction of residual aberrations this far
out from the axis in a long tele-focal length such as this 180mm was still considered
as an achievement in optical design back in those days, I agreed. |
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Nikon
Rangefinder S-mount
Nikkor-H 18cm f/2.5 1953 6E/4G
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Zeiss JENA Olympia Sonnar
1:2.8 f:18cm 1952 5E/3G
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Carl
Zeiss** Olympia Sonnar
Contarex 1966 4E/4G
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Carl
Zeiss (W. Germany) Olympia Sonnar
180mm f/2.8 1978 6E/5G
|
* Ref:- Reconstructed
images from info/data acquired from Frank Mechelhoff's GREAT
ARTICLES
on the Zeiss lenses. **: W. Germany |
Lastly, this fast speed Nikkor-H
telephoto presents a different kind of attraction to any serious Nikon collectors
as it was used to be one of the rare breed of large aperture Nikkor telephoto lens
made available for the Nikon rangefinder system. Further, as it has not been produced
in large quantity by Nikon during its entire product cycle which indirectly has helped
to spike its premium gradually over the years. It looks good and very eye-appealing
when mounted on a typical setup in a Nikon S-body with a Reflex Housing attached.
Today, even a well "conditioned" lens may easily fetch between USD1,500~1,900
range a unit. This reflects its high in-demanding current state as a worthy collectible.

How this
dual platforms Nikkor-H telephoto lens evolved itself after from here:- This short mount Nikkor-H telephoto
lens requires a Nikon reflex Housing in order for it to be used on a Rangefinder
Nikon for flexible full-range focusing. With the Nikon N-F Tube, it will work on a reflex
Nikon body as any normal preset Nikkor lens WITHOUT the need of the reflex housing.
It took Nikon quite
a while to introduce the reflex version. The first Nikkor 180mm f/2.8 with a non-Ai
nor ED glass configuration was introduced quite late in June, 1970 as a Nikkor-P
180mm f/2.8 AUTO
lens. The last of the Nikkor-P.C version was believed to have been updated as
an Ai-Nikkor in 1977/78 too along with, subsequently Nikon had dropped the old ways
of marked lens data at the front with a more uniform data printed. The lens did went
through a round of face-lift during this general lens updating program to all Ai-period. In 1980, this popular Nikkor tele-lens
again had gone through a major / radical update as Nikkor 180mm f/2.8ED was official
introduced. It was the first Nikon medium telephoto lens that uses an ED glass in
its optical design. The same lens was probably updated with Ai-S spec after some
of the manual focus Nikon SLR were beginning to offer Multi-programmed/Shutter Priority
AE shooting modes, this could have happened between 1982/84. The early AUTOFOCUS
(AF
Nikkor 180mm f/2.8S ED-IF)
version of this highly affordable ED-glass powered Nikkor classic telephoto lens
was launched in 1986 as an original first series of
AF Nikkor lens package
for the mid price Nikon F501. It was not actually a very popular model due to some
weak designs on its exterior but for the first time, Nikon had included internal
focusing to this new autofocus telephoto lens version. It next update, probably
occurred between 1988/9 was updated as a MK II version. Nikon has
took the opportunity to gave the lens an all new appearance as well as improved its
lens handling property. It had also patched many of the weaknesses that found on
the predecessor where quite quickly, their effort had restored confidence of users
again. The last series (current as at 2008) of this evergreen Nikkor telephoto was
released in 1994 as a native AF-D Nikkor lens. The AF Nikkor 180mm f/2.8D IF-ED enables 3D
Matrix Metering with any capable Nikon SLRs for almost foolproof ambient/flash exposure
measurement. As at 04.2008, Nikon has not announced any update such as G-Spec nor
IS version. |

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Basic Technical Specification for Nikkor-H(C) 1:2.5 f=18cm telephoto
lens:-
Lens Mount: Nikon Bayonet S-mount for RF models (Short Mount)
Compatible Models: Nikon S-Series rangefinder models via Nikon Reflex Housing; Nikon F/Nikkormat
via N-F Tube
Focal Length: 180mm (18cm)
Angle of View: 13° 30' (Diagonal; 11° 30' (Horizontal);
7° 30' (Vertical)
Maximum / Minimum Aperture: f/2.5 / f/32
Optical Construction: 6 elements in 4 groups
Minimum Focusing Distance: 2.1m (approx. 7 ft) ~ OO
(Marked values: Feet only for early model:- OO 900, 300, 200, 100, 70, 50,
40, 35, 25, 21, 18, 15 ... ); Model 2: Feet: starts from 300,... Metres: 100,
50 ...
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Depth of Filed
Scales: f/32, f/16, f/8.0, f/2.5.
Infra Index: Provided
Magnification ratio: 3.6X; Filter Attachment Size**: 82mm (P=0.75) Screw-in type / Series IX
Dimension: no info / Weight (body only): 1,695g (approx. 60oz); Leica
Screw mount version (SM): approx. 59.8oz
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Standard Accessories:
Requires Nikon Reflex Housing; Front/Rear lens cap, Lens hood (HN-10) as standard
accessories. Optional: Optical filters etc. N-F tube/adapters for Nikon
SLR cameras
Other Information:
Focusing
recommendation for Nikon F (via N/F Tube): A, B, E, F, J, G2, G3, H2 & H3 (C,
D, G4 may be possible); ** Slip-on outer diameter:
85mm; M39
Screw Mount version was also available for Leica, Canon etc. via their respective
version of Reflex Housing. Serial Numbering References:- Early versions starts
from 373500 ~ 373877. Followed up model could had been started from 473500~474176.
Total Number: approx. 1,200 units. Ref: Mr. Robert Rotoloni, author of An
Illustrated History of Nikon Rangefinder Cameras.
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 | 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
System Accessories
for Nikon Rangefinder cameras
Optical Finders (4 parts):- Fixed Focal length Finders (index page): 2.1cm,
2.5cm, 2.8cm,
3.5cm, 35cm Stereo,
5cm, 8.5cm, 10.5cm,
13.5cm | Variframe / Varifocal / Sport-frames
| Nikon Reflex Housing
Nikon
S36/S72/S250 Motor Drives
/ S36 Manual |
light meters | Nikon RF Flash/Speedlights | Close-up
photography / Repro Copy Outfit / Nikon Bellow Focusing Device (in progress) | Cases/Compartments | Lens & body caps,
Lens Hoods/shades,
Original Price Lists |
packaging/boxes
Instruction
Manuals
Related info:- Main index page
for Leica/Leitz | Contax/Carl Zeiss | Seiki Kogaku (Canon)

Recommended
External Web Resources:-
A Gorgeous View of the RF Nikkor 18cm f/2.5 mounted
on a Nikon SP at SP5-World, Japan; Discussion of RF Nikkor 18cm at Photo.net; RF Nikkor extracted from Nikon Historical
Society Journal; Discussion Forum at 1) Nikon
Historical Society (NHS) Discussion Forum;
2) Rangefinderforum.com; Nikon Japan History
of lenses; Nikon Society (Kenkyukai), Tokyo, Japan; extracted link RF articles
by Stephen Gandy / Cameraquest; Excellent article of Nikon S3 by
Mr. Bjørn Rørslett-NN/Nærfoto with a shot using the 21mm f/4.0;
SP5-World, Japan - excellent source on many RF Nikon/Nikkor
(Japanese/English); Another lovely site with many info
on RF Nikon (in
Japanese); LASTLY before you click off, have you ever
heard or Seen of a (induarial) Nikkor
180mm f/1.5 (1942)
before ? |
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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 trade name of Nikon Corporation Inc., Japan. Site made with an Apple
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