Conversion of film cameras to digital

When digital cameras became common, a question many photographers asked was whether their film cameras could be converted to digital. The answer was yes and no. For the majority of 35 mm film cameras the answer is no, the reworking and cost would be too great, especially as lenses have been evolving as well as cameras. For most a conversion to digital, to give enough space for the electronics and allow a liquid crystal display to preview, would require removing the back of the camera and replacing it with a custom built digital unit. Many early professional SLR cameras, such as the Kodak DCS series, were developed from 35 mm film cameras. The technology of the time, however, meant that rather than being digital "backs" the bodies of these cameras were mounted on large, bulky digital units, often bigger than the camera portion itself. These were factory built cameras, however, not aftermarket conversions. A notable exception is the Nikon E2, followed by Nikon E3, using additional optics to convert the 35mm format to a 2/3 CCD-sensor. A few 35 mm cameras have had digital camera backs made by their manufacturer, Leica being a notable example. Medium format and large format cameras (those using film stock greater than 35 mm), have a low unit production, and typical digital backs for them cost over $10,000. These cameras also tend to be highly modular, with handgrips, film backs, winders, and lenses available separately to fit various needs. The very large sensor these backs use leads to enormous image sizes. For example Phase One's P45 39 MP image back creates a single TIFF image of size up to 224.6 MB, and even greater pixel counts are available. Medium format digitals such as this are geared

more towards studio and portrait photography than their smaller DSLR counterparts; the ISO speed in particular tends to have a maximum of 400, versus 6400 for some DSLR cameras. (Canon EOS-1D Mark IV and Nikon D3S have ISO 12800 plus Hi-3 ISO 102400 with the Canon EOS-1Dx's ISO of 204800). The Nikon E3 and Nikon E3S, co-developed with Fujifilm and marketed also as the Fujix DS-560 and Fujix DS-565,[2] are autofocus 1.3 megapixel professional grade quasi-full frame (35mm) digital single lens reflex cameras (DSLR) announced by the Nikon Corporation on 15 June 1998[8] and released in December 1999. The E3S is identical to the E3 except triple frame rate and larger buffer. They are followers of the Nikon E2N/E2NS. A digital camera back is a device that attaches to the back of a camera in place of a film holder and contains an electronic image sensor. This lets cameras that were designed to use film take digital photographs. These backs are generally expensive by consumer standards (US$5000 and up) and are primarily built to be used on the medium- and large-format cameras favored by many professional photographers.Aftermarket (also after-market) refers to any market where the customers who purchase one product or service are likely to purchase a related, follow-on product. The existence of an after-market is often a persuasive argument for manufacturers to stay in direct contact with end users. Manufacturers will use postage-paid guarantee cards, for example, to keep track of the address of end-users. Aftermarket service includes product support for warranties, contracts, and parts sales.[1] Success of the razor and blades business model relies entirely on profits from aftermarket merchandise.