There are two types of photoreceptors, the cones and the rods. The cones function in bright light and there are three types that are maximally sensitive to different colours, which allows the ratio of their responses to code colour.
Medioimages/Photodisc/Photodisc/Getty Images. Most PGA Tour caddies make a salary of between $1,000 and $1,500 a week, plus a percentage of the playerâs winnings each week. A common rate is 5 percent for finishes outside the top 10, 7 percent for non-winning top-10 finishes and 10 percent if the golfer wins.
Caddies are traditionally paid 5% of the prize money for making a cut, 7% for finishing in the top 10, and 10% for winning a tournament according to Golf Digest's undercover pro.. If Spieth is using the same structure, his success on the golf course this season translates to a share of $866,534 for Greller. That would be enough for Greller to rank 93rd on the PGA Tour money list this season, ahead of 159 PGA Tour members.