This website aims to convey the idea of how a Standard Plenoptic Camera, e.g. the Lytro camera, enables refocusing as well as the extraction of multiview images. For that purpose, the Standard Plenoptic Ray Tracing Model will be introduced which is based on geometrical optics. This model allows for a quick computation of the refocusing distance, depth of field just as the baseline of virtual cameras providing the multiviews. In order to follow the idea of the model, it is recommended to start looking at the Derivation section and continue looking at Sub-aperture or Refocusing sections afterwards.