單反攝影技巧word版-資料下載頁
2025-09-25 19:15本頁面
【正文】 ecially color negative, you39。re better off overexposing by one stop.快速閃光輸出法則。在使用沒有自動輸出控制的閃光燈時，將閃光燈的感光度設為膠卷的二倍，對主體測光，機身選光圈整檔，閃光燈設同樣光圈。這種設置下，照片的陰影區(qū)會比主體的亮度低一檔。8. Quick flashfill rule： When using an automatic flash unit that doesn39。t provide auto flashfill ratios, set the flash39。s ISO dial to twice the ISO you39。re using. Meter the scene, select an fstop, set the autoflash aperture to the same fstop, and shoot. The resulting 2:1 flashfill ratio will produce filled shadows one stop darker than the main subject.閃光距離法則。距離乘2，感光度乘4。比如，你的閃光燈在感光度100時的有效距離為20英尺。如果你需要閃光距離達到40英尺，則需要使用感光度400的膠卷。9. Flash range rule： Want to know how much extra flash range you get by going to a faster ISO? The rule is, Double the distance, four times the speed. For example: If your flash is good to 20 feet at ISO 100 (film or digital), it will be good to 40 feet at ISO 400.像素翻番法則。要使數(shù)碼相機分辨率增倍，像素數(shù)要翻兩番。10. Megapixel multiplier rule： To double the resolution in a digital camera, you must increase the number of megapixels by a factor of four—not two. Why? The number of pixels in both the vertical and horizontal dimensions must be doubled to double the pixel density across the image sensor.1動態(tài)捕捉法則：這是一個角度與速度的經(jīng)驗公式。如果物體沿鏡頭的軸線運動你能夠用(1/125)的快門捕抓下來，那么它垂直于鏡頭軸線的運動（從取景框的一邊到另外一邊的運動）能用比(1/125)高2檔的快門(1/500)捕抓下來，如果物體沿鏡頭軸線成45度運動的話，只需要提高一檔快門(1/250)就能捕抓下來。（此條為GDSGHJ翻譯，特此鳴謝。）11. Actionstopping rules： To stop action moving across the frame that39。s perpendicular to the lens axis, you need shutter speeds two stops faster than action moving toward or away from you. For action moving at a 45degree angle to the lens axis, you can use a shutter speed one stop slower. For example: If a person running toward you at moderate speed can be stopped at 1/125 sec, you39。ll need a shutter speed of 1/500 sec to stop the subject moving across the frame, and a shutter speed of 1/250 sec to stop him if moving obliquely with respect to the camera.1日落測光法則。拍攝落日時，要對落日上部測光，但取景器中不要取到太陽。如果想讓照片上的日落看上去比實際晚一小時，可在曝光補償中減1。12. Sunset rule： To get a properly exposed sunset, meter the area directly above the sun (without including the sun). If you want the scene to look like it39。s a halfhour later, stop down by one fstop, or set exposure pensation to minus one.美國《大眾攝影》雜志文，Victorinox譯。
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