HDR or High Dynamic Range photos use multiple exposures combined to get the perfect lighting on

a subject. The effect can be overdone but with the right amount of work can lead to really professional and beautiful looking images. 

How TO

To create an HDR image you need multiple pictures at different exposures and a program that can put them together.

When Shooting:

AV MODE (HIGH AV 16+) + ISO 100 + Tripod + Remote

Under menu find the "Exposure comp./ AEB Setting" space the exposures -/+ 2 (-2 0 +2) make sure to press set.