Dust long having settled on the carcass of the industry, it seems in hindsight that Leica treated the production of domestic slide projectors more seriously than the Zeiss / Zett / Voigtlander combine. Leica’s catalogue of projector lenses represents the acme of the craft, matched by none for breadth and few for depth: for image …
The Bender Optical Works in Strawberry House, Leazes Park (Newcastle Upon Tyne) is noted in the 1960 edition of ‘The Instrument Manual’* as the operating premises of the company formerly known as M. Bender (Northern) Ltd – makers of analytical instruments. Several 1963 catalogues show B.O.W (Bender Optical Works Ltd) as the manufacturer of at …
Most makers of 35mm slide projectors offered a bread-and-butter plastic-barrel 85/2.8 and an optically superior upgrade that could be specified at purchase or retro-fitted. These lenses typically (though not always) jumped to 90mm but were always a little faster: commonly f2.4 or f2.5. The glass wasn’t just longer, it was deeper: deluxe options eschewed triplets …