Nikon has announced a new addition to its entry-level DSLR lineup: the 16.2-megapixel Nikon D5100.

Canon has designed a completely new digital single lens reflector camera called the Multipurpose 4k, which is so named because it produces video at a resolution that is four times that of full high definition 1080p.

Sony is said to be working on a new DSLR camera, code named Alpha A77. The new DSLR would most likely feature a 24-megapixel sensor, but deliver low noise images like the 14- and 16-megapixel cameras.

Priced at $1,500, the Sigma DS1 DSLR might be launched in February 2011

Soon after the Pentax-K-r’s launch last week, LensTip has leaked a photo of the next Pentax gadget, the K-5 DSLR, being developed by Hoya Corporation.

Pentax has launched a new digital SLR, the Pentax K-r. An entry level DSLR, the Pentax K-r is priced at $ 850 with an 18-55mm lens.

Olympus is likely to announce a replacement for its old E-3 DSLR camera at the Photokina visual art technology exhibition in Germany, according to rumors.

Nikon’s D90 will very likely be replaced by the Nikon D7000, photography websites and blogs report.

Sony Alpha 3D digital cameras may be on way. Letsgodigital reported that Sony, which already has plans to make 3D TVs soon, is also planning to make the Alpha 3D DSLR camera.

Nikon has announced its new FX-format Nikon D3S FX-format DSLR camera, that is currently available for pre-order on Amazon.