推荐回答（1个）
F光圈大小 1 1.2 1.4 2 2.5 2.8 3.2 3.5 4 5.6 6.3 8 11 16 22 32 45 64（蔡司镜头也有0.95的光圈）S快门速度 B 30" 15" 10" 8" 5" 4" 3" 2" 1" 2 4 8 15 30 45 60 80 125 160 200 250 500 800 1200 1500 2000 2500 4000 8000ISO感光度50 64 80 100 125 160 200 250 320 400 500 640 800 1000 1250 1600 2000 2500 3200 4000 5000 6400 12800 （胶片有6 8 10 12 16 20 25 32 40的感光度）佳能的体育机1D马克思也有102400的高感
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