New to DSLR?Updated February 2020
Interchangeable high quality lenses is the key to high quality pictures.
Although digital cameras are easy to handle, composition rules has not changed. A search for photography composition rules list several links.
Most cameras produced today (2010) are capable of producing high quality pictures, user error and low quality lenses might be the cause for low quality pictures. High quality lenses does not need to be expensive, an example from Nikon: Nikkor 50mm f/1.8Af-D (Approx 135 US Dollar) is a very sharp and perfect lens for portraits and landscape photo on a Nikon DX camerabody. Camera bodys without internal focus motor must use a AF-G or AF-S type lens for autofocus and metering. On a FX body this lens is perfect as a normal lens. Nikon Dx camera sensor dimensions are about 2/3 those of the 35mm film format (29mm vs 43mm diagonal, approx.). Read more her: http://en.wikipedia.org/wiki/Nikon_DX_format. Nikon FX has same sensor size as 35 mm film. : http://en.wikipedia.org/wiki/Nikon_FX_format. DX camera bodys and lenses are generally lighter and less expensive than FX. A crop factor of 1.5 gives a 300mm lens the same view angle as a 450mm lens.