![]() Astroimagers prefer to produce color images using a monochrome sensor and RGB filters, but many of the new CCDs were color sensors with built-in RGB filters required by the consumer camera market. Over time, CCD sensor prices came down and affordable sensors for amateurs got larger with higher resolution until finally CCDs became available that were the same size as a 35mm film frame with relatively small pixels and good sensitivity. With the advent of electronic imaging, affordable CCD sensors for amateurs were initially much smaller than 35mm film and this sparked debates over whether it was better to have the higher sensitivity of the electronic sensor or the superior filed of view and resolution of film. Early SCT telescopes produced a useable image circle slightly smaller than the 35mm frame, so images were typically cropped but the wide range of types and availability of 35mm film made this size a "standard" for amateurs. ![]() A single 35mm film frame measures 24mm x 36mm with a diagonal of about 43mm. View All Adapters & Imaging AccessoriesĪ technical comparison between the two monochrome 35mm full format sensors CCD Kodak KAI 11002 and Sony CMOS IMX 455 (Industry-Grade) - CCD versus CMOS Why is a monochrome full frame sensor so popular in astrophotography?įor many years before electronic imaging became commonplace, the standard method of taking astro-photos by amateurs was to use a 35mm film camera. ![]() Collimation Tools, Cleaning and Maintenance Products.Barlow lenses, Coma- and Glaspathcorrectors.Special eyepieces (Guiding, Diascope etc.).
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