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Sigma

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Sigma • 8mm Filtermatic Circular Fisheye

16mm Filtermatic Fisheye

Rare Khaki 600mm f8.0 Reflex

1 • Sigma Filtermatic Circular Fisheye 8mm f4.0 - Nikon F

The Sigma Filtermatic Circular Fisheye 8mm f/4.0 is a classic manual-focus circular fisheye lens originally released in the early 1980s. It is highly regarded by vintage lens collectors for its "Filtermatic" feature—a built-in turret system that allows users to switch between internal filters. Filtermatic System: The lens contains internal 22.5mm filters. Accessing or changing them requires separating the lens into two halves, which is a unique mechanical characteristic of this vintage series.

• Production Year: 1982 • FOV: 180° Circular • Mininum Focus:7.87" • Aperture Scale: f4.0 to f22.0 • Dimensions: 68.5mm x 55mm • Weight: 375g
• Lens Hood : N/A - 72mm Cap • Image Circle: 22mm diameter

2 • Sigma Filtermatic Fisheye 16mm f2.8 - Pentax K

The Sigma Filtermatic Fisheye 16mm f/2.8 for Pentax K-mount is a vintage, manual-focus prime lens known for its 180° diagonal field of view on full-frame cameras. It is distinct for its "Filtermatic" system, which features built-in filters—typically UV, blue, and orange—that can be toggled using a ring or wheel.

• Production Year: 1980 • FOV: 180° Full Frame • Mininum Focus:5.90" • Aperture Scale: f2.8 to f22.0 • Filters: N/A
• Dimensions: 66mm x 50mm • Weight: 305g • Lens Hood : Built In Petal

3 • Sigma Mirror Reflex 600mm f8.0 - Canon FD - Rare Khaki

The Sigma 600mm f/8.0 Mirror Reflex in "Khaki" (often referred to as military green or olive drab) is a rarer aesthetic variant of the standard black catadioptric lens produced during the film era. While most units found on the used market are black, the khaki version was released in limited quantities, often associated with wildlife or specialized outdoor use.

• Optical Design: 6 elements in 6 groups; utilizes mirrors to fold the light path, making it much more compact than traditional 600mm telephotos.

• Production Year: 1979 • FOV: 2.7° • Mininum Focus:6.0 ft. • Aperture Scale: f8.0 • Filters: Rear 32mm Drawer or 86mm Front
• Dimensions: 121.88mm x 90.0mm • Weight: 830g • Lens Hood : Sigma 86mm