360icon | FotoGear | Stereo Adapters

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FotoGear | Lens

Stereo Adapters

FotoGear Lens Stereo | Adapters -

Adapters • Asahi Pentax Stereo + Viewer

Stitz Stereo SA-1

• Asahi Pentax Stereo Lens Adapter + Viewer II

The Asahi Pentax Stereo Viewer II is a vintage, handheld optical device designed specifically to view 3D, side-by-side images produced by the Asahi Pentax Stereo Adapter. It works by presenting two separate, slightly different images to each eye, allowing the brain to merge them into a single 3D image with enhanced depth.The viewer works in conjunction with the adapter, which uses a series of mirrors to divide a 35mm frame into left and right images. The viewer provides the necessary optical separation and magnification to see these images in 3D

• Design: A compact, handheld viewer, usually made of durable, high-quality plastic.
• Optics: Contains multiple lenses that focus the stereo image.
• Compatibility (52mm or 49mm, typically for 50mm/55mm lenses).

• Stitz SA-1 Stereo Lens Adapter • Japan

Overview The SA-1 is a beam-splitting device that mounts to the front of a standard camera lens. It uses internal mirrors or prisms to divide the 35mm film frame into two vertical "half-frame" images—one for the left eye and one for the right. It is highly regarded by collectors and vintage photography enthusiasts for its ability to produce 3D effects without requiring a specialized stereo camera.

• For the Stitz SA-1 stereo adapter, you typically need a standard prime lens with a focal length of at least 55mm to 60mm on a 35mm SLR or full-frame camera. Using a focal length shorter than 55mm often results in vignetting (darkening of the corners), as the internal mirrors of the beam splitter will begin to appear in the frame.

• Made in Japan by the Itzuki Instrument Company
• Estimated Era: Produced between 1950 and 1960.
• Focal Lengths: 55mm to 60mm for a standard "natural" perspective.
• Telephoto: It can be used with longer focal lengths, reportedly up to 300mm
• It is generally recommended to use apertures between f/5.6 and f/8.
• Small apertures (higher f-numbers) help keep the vertical center partition line sharp
• Manual Focus: Since the adapter sits in front of your glass, you must use manual focus.
• Portrait Orientation
• Distance: 1.5 to 4 meters from your subject