Nikon just gave its entry-level DSLR a pretty obvious spec bump, but along with the new camera, Nikon's introducing a new version of the standard kit lens that ships with the product and will probably be used by tons of beginners on this and other cheaper Nikon DSLRs
The D3300 inherits many of its new guts from the recently upgraded D5300. The most significant improvement is a newly redesigned 24.2-megapixel APS-C image sensor that doesn't have an optical low-pass filter. On older sensors, OLPFs were used to help prevent aliasing distortions in photographs; however, this safeguard came at the expense of some very fine detail in images. Nikon says its sensors have improved to the point that they don't need to use the filter any more.