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PENTAX smc BIRDS-EYE 1:2.8 8.4 mm

Pentax prototype, 1982.

Pentax | 1982 | Circular Fisheye | 8.4 mm | Format: Full Frame 35 mm
Lens Mount: Pentax K

Prototype, Pentax K mount, presented in Photokina 1982. No focus ring, manual diafragm. Seems 2 prototypes are known to exist, one named Bird’s eye and one fish-eye.
The only image available is coming from some magazine, all the information are coming from pentaxians.eu and aohc.it.

an abstract from a coastal optical system pdf analyzing all interesting fisheye patents. This should be the Pentax 8.4mm

Lens info

Manufacturer:

Pentax

Focal Length:

8.4 mm

Camera Format:

Full Frame 35 mm

Lens Type:

Circular Fisheye

Lens FOV:

Lens Mount:

Pentax K

Lens Hood:

None

Filter Type:

None

Lens Elements / Groups:

10 / 7

Image Circle:

Dimensions:

Weight:

Years Manufactered:

TBD - TBD

Minolta MD Fish-eye 1:4 f=7.5mm

Nikon Fisheye-Nikkor 16mm 1:2.8 AI-s

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