Nikon d5100  The thing that really sells the Nikon D5100 is its
921k-dot, 3-inch, vari-angle LCD screen. Because this is mounted
on a side hinge, it's possible to turn it away from the camera
and rotate it through any angle. This provision is particularly
useful for video capture where a waist-level or high-up shooting
position may be desired.  It's worth noting that the D5100 was
released before the more budget Nikon D3100. However, the latter
release benefitted from live view improvements that translated
into faster movie autofocusing. When the D5100 was released,
these improvements hadn't been rolled out, so, as a benchmark,
the D3100 is actually a more capable video shooting machine in
terms of its autofocus ability.  Auto Focus  The D5100 offers
edge-to-edge focusing across the whole screen, and it's possible
to move the AF-Area focus point anywhere, using the D-pad. In
addition, there are Face-Priority AF and Subject Tracking AF
modes that do a good job of selecting subjects and recognising
their moveme