June 2005, Nikon Kenkyukai Tokyo, Meeting Report
June 2005, Nikon Kenkyukai Tokyo, Meeting Report

SAPPORO 300mm F2.8 and MONTREAL 300mm F2.8

June 19, 2005
S 5cm F1.5
Ultra Micro Nikkor
SAPPORO 300mm F2.8
Nikon 16658mm F18

S Nikkor 5cm F1.5 Special

The main theme of the meeting was the special research of Nikkor 5cm F1.5 for the rangefinder Nikon. Several members brought their beautiful lenses and cameras.
And then, second theme of the meeting was the SAPPORO 300mm F2.8 and the MONTREAL 300mm F2.8 special show.
Also the rare industrial Nikkor lenses, Ultra Micro Nikkor lenses were walking on the table.
A special guest joined the Tokyo meeting of this month.
His name is Mr. Shigeki Terada, an astronomer. He lectured about the DODAIRA observatory to us.
The meeting was held in Haccho-bori in Tokyo near Ginza.
We enjoyed the meeting in Japanese early summer of good day afternoon.

Collection of beautiful lenses and filters

Long-awaited super sharp high speed Nikkor 5cm F1.5

Nikkor S C 5cm F1.5 No. 905163

Nikkor S C 5cm F1.5 No. 905285

Nikon M and Nikkor S C 5cm F1.5 No. 907314

Nikkor S C 5cm F1.5 No. 907354

L-mount of Nikkor S C 5cm F1.5 No. 907683

Nikkor S C 5cm F1.5 No. 905163 and No. 905285

The 40.5mm filter collection for Nikkor S C 5cm F1.5

W-Nikkor 3.5cm F2.5

Please look at a beautiful W-Nikkor 3.5cm F2.5 lenses.
The engraving of the shade is also wonderful.
Very good 43mm filter collection also displayed on the table.

W-Nikkor 3.5cm F2.5 lenses and the beautiful hoods

The 43mm filter collection for W-Nikkor 3.5cm F2.5

The beautiful lenses and cameras on parade on the table

Ultra Micro Nikkor Special

We researched the Ultra Micro Nikkor lenses following last time.
The short focus lens lined up on the table this time.
Michio Akiyama, a specialist of industrial Nikkor lenses, showed us his collection.
He put Ultra Micro Nikkor 28mm F1.7e, Ultra Micro Nikkor 28mm 1.8e, Ultra Micro Nikkor 50mm F1.8h, and Ultra Micro Nikkor 55mm F2 on the table.
The small filter is engraved as "for Ultra-Micro-NIKKOR" by red character. This filter is only for the Ultra Micro Nikkor lens, and it is stored in the nice wooden box.

Ultra Micro Nikkor 50mm F1.8h and 28mm F1.7e

Ultra Micro Nikkor 28mm F1.8e with special e-line filter

Ultra Micro Nikkor 55mm F2 and 28mm F17e

The SAPPORO 300mm F2.8 Super First Telephoto Lens

Japan's first Winter Olympic Games held at the city of Sapporo, in Hokkaido, in February 1972.
Nippon Kogaku developed an efficient telephoto lens for the professional press photographer.
This lens was released in January 1972 exclusively for the professional press field.
Yes, it was "NIKKOR-H 300mm F2.8" as you know.
This lens has been called "SAPPORO 300mm F2.8" among people interested in a photography.
At that time, "ED" engraving was not able to be found to the rim of the lens.
The glass of Germany, SCHOTT GLAS, was used for the early production models.
Later, it was applied with the multi-layer coating, and then, improved to the one adopted Nikon's new glass named the ED(Extra-low Dispersion) glass.
The MONTREAL 300mm F2.8 has the ED glass.
You can find the "ED" engraving to the rim of the lens.

Left, MONTREAL 300mm F2.8 and Right, SAPPORO 300mm F2.8

Left, SAPPORO 300mm F2.8 and Right, MONTREAL 300mm F2.8

SAPPORO and MONTREAL are the same externals

Telescope Special

First of all, please look at an old telescope.
The mark of old Nippon Kogaku is engraved to this telescope.
The body made of brass is beautiful. This is a new 2-inch telescope.
It seems that this telescope was improved by the German engineer in 1921.
Please look at the mark of Nippon Kogaku in an old age.

Very early 2-inch telescope of Nippon Kogak

Very early Nippon Kogaku marking

Dodaira Observatory and Nikon 91cm Cassegrain Reflector

If you talk about the history of the Nikon astronomical telescope, never forget the Dodaira observatory.
The Dodaira observatory is located in the Mt. Dodaira above sea level 876m in Saitama Prefecture near Tokyo.
It was established as a University of Tokyo Tokyo observatory Dodaira observation place in 1962. It became the National Observatory Dodaira observation place afterward, and it had left the good result of the research in a lot of astronomy.
It was a merit that Dodaira was near from Tokyo.
However, the house began to be constructed in the town, and the astronomer was annoyed by the light of the house.
Furthermore, the space observation was shifted to the research used the super-large telescope, like the SUBARU observatory in Hawaii.
Finally, the Dodaira observatory was closed in March 2000.
It was regrettable for astronomical fan.

Beautiful dome of Dodaira Observatory
Photo: Copyright (c) 2005, Shigeki Terada, All Rights Reserved.

However, a great telescope, Nikon 91cm F18 Cassegrain Reflector did not die.
The National Observatory transferred a 91cm Reflector and equipment including dome to Tokigawa village.
Tokigawa village renewed the observatory for not the astronomer but the citizens.
The telescope needed the expert to restore for a good observation.

Mr. Shigeki Terada, a main member who supports Dodaira observatory, joined in the Tokyo Meeting to talk about "How to save the DODAIRA".
Terada-san explained the problem of the Dodaira observatory to member of Nikon Kenkyukai by the PowerPoint slide show.
A 91cm main mirror, mount and driving mechanism need the maintenance by the expert.

Nikon 91cm F18 Cassegrain Reflector
Photo: Copyright (c) 2005, Shigeki Terada, All Rights Reserved.

Big 91cm reflector and 20cm and 15cm telescopes
Photo: Copyright (c) 2005, Shigeki Terada, All Rights Reserved.

Dodaira Collection

After his lecture, Terada-san introduced the Dodaira collection to us.
They were great astronomical equipment which Nippon Kogaku had manufactured.
We researched the eye piece complete set and the Nikon spectrum prism outfit.
Please look at big eye piece sets and fantastic lenses.

Eye piece complete set from observatory establishment

K-60mm and H-40mm eye piece

Nikon mark engraved O-13mm eye piece

Please see the photos continuously.
Yes, you can see photo of the guide eye piece for the sky camera, Nikon spectrum prism outfit, big heavy weight K-80mm eye piece and beautiful K-25mm eye piece.
The K-80mm eye piece has 4 kg weight!!

Guide eye piece for the sky camera

Nikon spectrum prism outfit

Big heavy weight K-80mm eye piece

Big K-80mm and small K-25mm eye piece

Save the DODAIRA

Dodaira Dome and Sky
Photo: Copyright (c) 2005, Tokigawa Village, All Rights Reserved.

The Dodaira observation place established in 1962.
At that time, a beautiful big telescope, Nikon 91cm F18 Cassegrain Reflector was there.
We hope to restore the telescope as beautiful as the day first light.

The person who designed this beautiful telescope is Mr. Shoichiro Yoshida, former Chief Executive Officer and Chairman of the Board of NIKON CORPORATION.
He was 28 years old when he designed Dodaira big telescope!!

The Nikon Kenkyukai will assist the 91cm telescope restoration of DODAIRA.

Photo: (c) 2005, Tokigawa Village

Photo: (c) 2005, Tokigawa Village

Photo: (c) 2005, Shigeki Terada

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Copyright Michio Akiyama, Tokyo Japan 2005, 2019