Sigma SD1
Encyclopedia
The Sigma SD1 is a digital
SLR camera
produced by the Sigma Corporation
of Japan
. The camera uses a Foveon X3 sensor, which comprises 3 layers of 4800 x 3200 pixels (46 megapixels), giving much higher spatial resolution than the equivalent Bayer array
. The SD1 was announced by Sigma at Photokina 2010 on September 21, 2010.
, making it one of the most expensive digital SLR cameras ever sold, and comparable to the Pentax 645D medium format
DSLR.
Digital photography
Digital photography is a form of photography that uses an array of light sensitive sensors to capture the image focused by the lens, as opposed to an exposure on light sensitive film...
SLR camera
Single-lens reflex camera
A single-lens reflex camera is a camera that typically uses a semi-automatic moving mirror system that permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to pre-SLR cameras where the view through the viewfinder could be significantly...
produced by the Sigma Corporation
Sigma Corporation
is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...
of Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
. The camera uses a Foveon X3 sensor, which comprises 3 layers of 4800 x 3200 pixels (46 megapixels), giving much higher spatial resolution than the equivalent Bayer array
Bayer filter
A Bayer filter mosaic is a color filter array for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensors used in digital cameras, camcorders, and scanners to create a color image...
. The SD1 was announced by Sigma at Photokina 2010 on September 21, 2010.
Pricing controversy
The SD1 was officially put on sale in May 2011 at a RRP of nearly US $10,000 ., making it one of the most expensive digital SLR cameras ever sold, and comparable to the Pentax 645D medium format
Medium format
Medium format has traditionally referred to a film format in still photography and the related cameras and equipment that use that film. Generally, the term applies to film and digital cameras that record images on media larger than 24 by 36 mm , but smaller than 4 by 5 inches .In digital...
DSLR.