September 2025, Nikon Kenkyukai 2
September 2025, Nikon Kenkyukai     2

Ai Fisheye-Nikkor 6mm F2.8

Aluminum Trunk Case

Do you know what this big box is for? This box is an aluminum trunk case specifically designed to store the Ai Fisheye-Nikkor 6mm F2.8 lens.

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye Nikkor 6mm F2.8

This lens has a 220° angle of view and weighs a whopping 5.2 kg. This lens is extremely large and heavy compared to the other Fisheye Nikkor lenses on the table.

The types and release dates of the Fisheye-Nikkor 6mm F2.8 are as follows:

Fisheye Nikkor Auto 6mm F2.8     June 1972
Ai Fisheye Nikkor 6mm F2.8         May 1977
Ai Fisheye Nikkor 6mm F2.8S       May 1982

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

Ai Fisheye-Nikkor 6mm F2.8

OP Fisheye-Nikkor 10mm F5.6

The OP Fisheye-Nikkor 10mm F5.6 was released in 1968 as the fourth fisheye lens from Nikon, following the 7.5mm F5.6. The outstanding feature of the OP Fisheye was its orthographic projection design, the first interchangeable lens of its type in the world.

The lens was originally developed for scientific research applications such as brightness measurement and architectural illumination. It is extremely difficult to implement this type of orthographic projection fisheye as a spherical lens, so the OP Fisheye makes the front lens aspherical to provide accurate projections. The OP Fisheye was not only the world's first orthographic projection fisheye lens, but also the first aspherical SLR lens in the world.

OP Fisheye-NIKKOR 10mm F5.6   1968

OP Fisheye-NIKKOR 10mm F5.6

Fisheye Nikkor 8mm F8 and 7.5mm F5.6

The Fisheye-Nikkor 8mm F8 was released in 1962 as the first fisheye lens for the Nikon F. Then, four years later in 1966, the Fisheye-Nikkor 7.5mm F5.6 was released as an improved version of the Fisheye-Nikkor 8mm F8, which was one stop brighter.

Fish-eye-NIKKOR 8mm F8   1962

Fish-eye-NIKKOR 8mm F8

Fish-eye-NIKKOR 7.5mm F5.6   1966

Fish-eye-NIKKOR 7.5mm F5.6

Ai Fisheye Nikkor 8mm F2.8

The Fisheye Nikkor 8mm F2.8 is two stops brighter than the Fisheye Nikkor 7.5mm F5.6. What's more, you can now attach it to your Nikon SLR camera without mirror up. You can see the circular fisheye image through the lens directly in the viewfinder.

The types and release dates of the Fisheye-Nikkor 8mm F2.8 are as follows:

Fisheye Nikkor Auto 8mm F2.8      August 1970
Ai Fisheye Nikkor 8mm F2.8          June 1977
Ai Fisheye Nikkor 8mm F2.8S        March 1982

Ai Fisheye-NIKKOR 8mm F2.8

Ai Fisheye-NIKKOR 8mm F2.8

Fisheye Nikkor 16mm F3.5 and 16mm F2.8

Fisheye-NIKKOR Auto 16mm F3.5

Ai Fisheye-NIKKOR 16mm F2.8

Ai AF Fisheye-Nikkor 16mm f/2.8D

Fisheye-NIKKOR 16mm F3.5 and 16mm F2.8

Fisheye-NIKKOR 16mm F3.5 and 16mm F2.8

DX Fisheye-Nikkor

The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED is a compact fisheye lens exclusively for the DX format (APS-C size). The angle of view is 180° (DX format). In FX format (35mm equivalent), this is equivalent to the angle of view of a 16mm diagonal fisheye lens.

Fisheye-NIKKOR Lenses

Nikon DX ED Fisheye

AF DX Fisheye-Nikkor 10.5mm f/2.8G ED

AF DX FISHEYE NIKKOR 10.5mm F2.8G ED

Fisheye Zoom Lens

The AF-S FISHEYE NIKKOR 8-15mm f/3.5-4.5E ED lens is the first NIKKOR fisheye lens with zoom capability and the first NIKKOR zoom to capture epic 180° circular images.

The AF-S FISHEYE NIKKOR 8-15mm f/3.5-4.5E ED lens brings a new level of versatility and sharpness to extreme wide-angle lenses, freeing you to choose the right fisheye perspective for the shot; to create frame-filling images from as close as 15cm from your subject or to follow your passion into challenging, heavily backlit, even wet and dirty situations.

AF-S Fisheye NIKKOR 8-15mm f/3.5-4.5E ED

AF-S FISHEYE NIKKOR 8-15mm F3.5-4.5E ED

Fisheye-NIKKOR Lenses
Nippon Kogaku
LENS MADE IN JAPAN

Shu Akayama Channel

A professional photographer Shu Akayama introduced the Nikon Kenkyukai Tokyo on his YouTube show.
Released on September 21, 2025
https://www.youtube.com/watch?v=_bsezbeaYvE&t=139s

The Nikon Kenkyukai Tokyo Meeting
All about Fisheye Nikkor Lenses

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Copyright Michio Akiyama, Tokyo Japan 2025