PHOTO SEMINAR -- The McLean Community Center and the Eastman Kodak Co. will offer an all-day course on photography September 8, a Saturday, from 9 to 5. The cost of $16.50 includes all materials, lunch at the Joshua Tree and admission to an exhibit of photographs by John Francis McCarthy. Advance ticket sales only. For details call 790-9248.

County fair season is almost upon us, offering a wealth of picture materials; exhibits of flownrs, food and animals, contests of all kinds and candids of the spectators.

With some many things to choose from it's easy to overlook some sections. One of these is the poultry exhibit, which I almost skipped at a fair in Iowa.

It was only toward the end of the day that I got around to the poultry listing on the program -- after I'd covered the 4-H contests, the baby animal nurseries and the show animals in the rings. Plus the shots of people in the crowd enjoying themselves. I was tired and tempted to skip the chickens, especially since they were in a far corner of the fairground. After all, if there was anything to see the organizers would have put the poultry closer to the people.

But the thought of shots I might be missing drove me out there, and was I glad

I'd never dreamt that there were so many varieties of chickens: City boy that I am, I'd thought that hens and roosters came in white, gray and black, and I wasn't even sure of the last two.

A Big Red, a Plymouth Rock rooster, was my best model, and I got repeated closeups of him with the sun blacklighting his red wattles. The exotic Japanese chickens also took my fancy: They looked like balls of white fur, rather than feathers, with only the tips of their beaks and the dots of their eyes for accent. But my favorite was a Polish chicken who looked like a mad Hussar, with a plume of feathers for a helmet.

The exhibitors were delighted to be discovered and I was delighted at getting pictures where I didn't think I had a chance. In fact, Big Red became a lead shot in a National Geographic book.

BASEBALLS SHOTS -- This is also the season when a lot of team sports, especially baseball. Here are a few tips: For starters, with a normal lens you'll have to be close to the action. so check with coaches and umpires to be sure you won't be in the way. Your best bets as places to stand are first and third bases and home plate. Stand or -- so as not to block other's view -- squat 10 or 15 feet from the baseline and focus on the base. Then wait for the action to arrive. After a while, switch to another location.