Definitions of hyperfocus on the Web:

* Hyperfocus has been suggested to be a mental state often associated with attention deficit hyperactivity disorder (ADHD), a human psychiatric disorder often diagnosed in childhood which is thought to continue into adulthood for about 30% of individuals, and is then commonly known as adult attention-deficit disorder (AADD).
en.wikipedia.org/wiki/Hyperfocus



My suggestion is use a tripod and bracket your shots with huge margins, or shoot in RAW, even if you dont have photomatix, you may want to HDR them later.