The Bausch & Lomb Metrogon is a titan of mid-century cartography and aerial reconnaissance, famously derived from the ultra-wide Zeiss Topogon design. Originally engineered for the Fairchild 9×9 mapping cameras, this lens was designed to capture vast expanses of terrain with minimal distortion from high altitudes. Today, it represents a “functional history” prize for large-format photographers; its massive image circle not only covers 8×10 inch film but provides room for movements, offering a unique, clinical sharpness that is highly prized for architectural and landscape work.The Technicals (The “Specs”)Model: Bausch & Lomb Optical Co. Metrogon (U.S. Pat 2,032,492).Focal Length: 154.45mm (6 inch).Maximum Aperture: f/6.3.Coverage: Designed for 9×9″ aerial film; provides full coverage for 8×10″ large format.Optical Condition: Glass is clean and clear. Features some minor cleaning marks on the surface, typical for a lens of this era, which do not affect image quality.Mechanicals: The integrated aerial shutter mechanism has been tested and successfully opens and shuts.Conversion Potential: The front and rear lens cells can be unscrewed from the original Fairchild housing, making this an ideal candidate for rehousing into a modern shutter or a custom large-format mount.Shipping: Professionally packed and shipped from the Netherlands.Keywords: Bausch & Lomb, Metrogon, Aerial Lens, 8×10 large format, Fairchild camera, vintage glass, wide angle lens.Like this:Like Loading… Related
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