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.
There are several benefits to being a PGA Tour caddy in addition to the salary. Caddies often get paid to travel to exotic locations and stay in five-star resorts. Some caddies get disability and health benefits, although this is not standard.here are several benefits to being a PGA Tour caddy in addition to the salary. Caddies often get paid to travel to exotic locations and stay in five-star resorts. Some caddies get disability and health benefits, although this is not standard.