Elf — Senses of the First World
Elves have keener vision than other mortals, and things which are hidden to others are revealed to them. Elves gain a +2 racial bonus to Perception checks, have Low-Light Vision, and have Detect Magic as a constant SLA.
The effects of concealment are reduced by a flat 20% (so blur is negated, and displacement imposes only a 30% miss chance). The maximum distance at which they can notice things is doubled, and the distance penalty is halved.