D300 is recommended for amateur photographers, because the ergonomic design and easy interface. While D300 is directed to the use of pro photographers, given the material body made
Nikon D90 is very physically identical to the Nikon D80, but with the advantages of smaller size and lighter compared to the Nikon D300. Being physically lighter and
Nikon D40 was introduced in 2006, precisely 16 November 2006 As the camera has 8 years old, the D40 is already ancient because of developments in technology including