Pre-Holiday Basketball. Basketball is a sport played by two teams of five players. The game consists of two (2) twenty minute halves. Pre-holiday basketball is a single elimination tournament and a fun way to prepare for Regular Season of Basketball in the spring semester. We at KU know a little something about good baskeball.
1 Bokeh, a source of circles around out-of-focus bright points, also due in part to the internals of the lens. 2  Diffraction spike, a type of lens flare seen in some telescopes.  Anti-reflective coating, used to reduce lens flare and produces the red and green colors common in lens flare.
A lens hood also acts as an umbrella for your lens. To some extent it can keep rain drops or dust from landing on the front element. This is especially true for longer lenses, like an 80-200 zoom, that have deeper lens hoods. So, start looking for situations where lens flare can hurt you.