An underwater “wet” fisheye lens (does not need a dome, and can’t work properly out of water) that fits Nikonos mount cameras.

Nauticam made in the 2010s an incredible adapter that let you use this beauty on a Sony A7 series camera underwater.(Nikonos Adapter for NA-A7II//A9/A7RIII/A7RIV/a2020/A7C-SKU # 37202 - NOT INCLUDED!)

WARNING: UNDERWATER USE ONLY. CANNOT be used on land!

No fogging, some scratches on front glass! The aperture and focus knobs work proper! Included soft pouch

The 12mm F3.5 Fisheye is a world-class lens in a class by itself. It is the first and only primary fisheye lens developed exclusively for the Nikonos V. It provides an unprecedented 167" of view, almost twice the angle of view of a the Nikonos 15mm lens and permits full-frame images of the sea's biggest subjects less than 10 inches from the film plane (at f/22), with unparallelled depth of field and laser-sharp image rendition. This first-class fisheye lens enables excellent color saturation and image resolution and in contrast to conventional "fisheye" lenses with their typical oprical issues (who create a circular image on film), the SWL delivers a "flat" and rectilinear image free of chromatic aberration and distortion. Underwater use only!

Lens info

Manufacturer: Sea&Sea

Use: UNDERWATER USE ONLY

Focal Length: Fixed 12 mm (rectangular fisheye)

Aperture range: F/3.5 ~ f/22

Focusing range: 30 cm - ∞ (11.8 inches ~ infinity)

Camera Format: Full Frame 35 mm

Lens Type: Diagonal Fisheye

Lens FOV: 167°

Focus Type: Manual focus (only)

Lens Mount: Nikonos

Lens Hood: Fixed

Filter Type: None

Construction: 9 elements in 6 groups

Image Circle: 44mm

Dimensions: 108 x 91 x 107 mm (D x L x W)

Weight: 570 gr

Max. depth: 60 m

Material: corrosion-resistant aluminum

Serial number: 93900183

Includes: lens pouch