Sony Alpha 100

Sony α100 (DSLR-A100) is the first digital single-lens reflex camera (DSLR) marketed by Sony. It is successor to previous Konica Minolta DSLR models (primarily the Maxxum/Dynax 5D and 7D) through Sony's purchase of the Konica Minolta camera division. The α100 retains similar body design and claimed improvements on Konica Minolta's Anti-Shake sensor shifting image stabilization feature, renamed Super SteadyShot. It uses a 10.2 megapixels APS-C size CCD sensor. Another notable feature inherited from Konica Minolta is Eyestart, which provides for automatic autofocus activation by detecting the presence of the photographer's eye on the viewfinder, thus quickening camera response.

Another notable feature is an automatically vibrating CCD to remove dust each time the camera is shut off. The α100 shipped from Sony and resellers by the end of July 2006 with MSRP prices of US$1000 with the 18–70 mm f/3.5–f/5.6 kit lens and US$900 body only. The camera retains the same autofocus lens mount that was introduced with the Minolta Maxxum 7000 in 1985, allowing the continued use of the millions of existing Minolta AF lenses.

Digital single-lens reflex camera

A digital single-lens reflex camera (also called a digital SLR or DSLR) is a digital camera combining the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film. The reflex design scheme is the primary difference between a DSLR and other digital cameras. In the reflex design, light travels through the lens, then to a mirror that alternates to send the image to either the viewfinder or the image sensor. The alternative would be to have a viewfinder with its own lens, hence the term "single lens" for this design. By using only one lens, the viewfinder of a DSLR presents an image that will not perceptibly differ from what is captured by the camera's sensor.

DSLRs largely replaced film-based SLRs during the 2000s, and despite the rising popularity of mirrorless system cameras in the early 2010s, DSLRs remained the most common type of interchangeable lens camera in use as of 2014.

A100

A100, A.100 or A-100 may refer to: