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.
But they do get paid. A lot. At the top end, caddy pay days can be better than many players in the field. Since June 2006, Tony Navarro, Adam Scottâs caddy, has pulled in $442,548; Allistair Matheson, who walks with Geoff Ogilvy, made $337,888.one estimates caddies can make $1,000 a week at the top clubs. After all, golfers paying $350 to play TPC Sawgrass or $500 to play Shadow Creek can generally spare $50 or $100 for a tip.