Buhl Optical 671-060 8.5" EFL F/3.9 Carousel Slide Projector Lens Ektagraphic

Buhl Optical 671-060 8.5" EFL F/3.9 Carousel Slide Projector Lens Ektagraphic

The Buhl Optical 671-060 is an 8.5-inch EFL (effective focal length) F/3.9 projection lens designed specifically for Kodak Ektagraphic and Carousel slide projectors. Buhl Optical Company, based in Pittsburgh, PA, was a well-known manufacturer of precision optics and projection lenses for the education and AV markets. This lens features a black anodized cylindrical barrel with a ribbed focus-adjustment grip ring and houses multi-element glass optics suited to 35mm slide projection at longer throw distances.

Specifications & What's Included

• Manufacturer: Buhl Optical Company, Pittsburgh, PA 15233
• Catalog / Part Number: 671-060
• Effective Focal Length: 8.5" (approximately 215.9 mm)
• Aperture: F/3.9
• Compatible Projectors: Kodak Ektagraphic, Kodak Carousel series slide projectors
• Barrel finish: Black anodized aluminum with ribbed focus grip ring
• Front glass element visible and intact in photos
• Includes: original Buhl Optical Company cardboard box

Applications

Carousel and Ektagraphic-mount projection lenses like the Buhl 671-060 were standard accessories for Kodak's widely used 35mm slide projector platform, which was ubiquitous in classrooms, lecture halls, corporate presentations, and AV production from the 1960s through the 1990s. An 8.5-inch EFL lens is a long-throw optic, suited for large rooms where the projector must be placed at a substantial distance from the screen to fill a wide image area. Buhl Optical supplied a range of focal lengths for the Carousel mount, from wide-angle lenses for small spaces to telephoto lenses like this one for auditoriums and large venues. Today these lenses are sought by collectors of vintage AV equipment, owners of still-functioning Kodak Carousel projectors, and photographers who adapt large-aperture projection lenses to camera bodies for their distinctive optical character.