http://www.nikonchat.com/nikkor-200mm-f4-ai-lens/

my nikon n60 has a problem?
or not. So I tried my nikon n60 one day with a 200mm Nikkor AI-SF / 4 lens that sat in a room dark, but had accidentally opened the back and exposed the film. when I had the film developed, the images were too bright and blurry too! if picturescame too bright and blurry, which is due to exposing the film? or was it because of the camera: What I used at the time of opening: f4 Shutterspeed: 500 ISO200 film was a bright sunny day without clouds. California regular day
It's hard to tell because we do not know how "dark" was in the room or the time I had the camera back open, but obviously this is a good way of getting things wrong in his movie. If all the images were too bright and blurry, I would say they were overexposed. The "Sunny 16" guideline says to exhibit in the sunshine, in the inverse of the ISO at f/16. This means you should have used 1 / 200 yf/16. The equivalent of this value would be EV 1 / 400 at f/11. I'm going to guess that 1 / 500 would be f / 9. Therefore, the setting of f / 4 is left on the road too much light.