ملف:Lens triplet.svgDescriptionLens triplet.svg A lens triplet, vectorised from png Date 21 November 2006 Source Image:Lens triplet.png Author Panther, Antilived Other versions
ملف:Lens triplet.pngFile:Lens triplet.svg is a vector version of this file. It should be used in place of this PNG file. File:Lens triplet.png → File:Lens triplet.svg For
ملف:CookeTriplet-text.svg(paul1513); self created; a block diagram of the Cooke Triplet, the standard economy photographic camera lens of the twentieth century. English determination