Nikon just announced on August 23rd, 2007 the upcoming release of their prosumer DSLR Nikon D300, the big brother of the Nikon D200. The D300 has a 12.3 MP DX format CMOS sensor measuring 24mm x 16mm. It features a very large 3" LCD with 920,000 pixels. The D300 offers upgrades over the D200, however, also announced was the upcoming Nikon D3 that boasts superior specifications over the D300.