|Camera industry in Berlin|
|Agfa | Amigo | Astro Berlin | Bermpohl | B W | Foth | Goerz | Grass & Worff | Plasmat | Rudolph | Rüdersdorf | Schulze & Billerbeck|
B+W filter manufacturing company (B+W Filterfabrik) is a producer of filters.
The company was founded in 1947 in Berlin by partners Biermann and Joh. Weber. It merged, in 1985, with Schneider-Kreuznach (Jos. Schneider Optische Werke GmbH) and still continues as a business line.