本程序可根据相机型号,拍摄照片时光圈,快门的参数,自动计算出景深范围,方便实用,是摄影爱好者必备的专业工具. This program is an easy and must-have tool for all photographers, which can automatically calculate the depth of field according to camera model, aperture and shutter speed. v1.5更新日志： 1.[优化]全新界面显示 2.[更新]相机型号库更新 3.[纠正]物距大于超焦距时,景深和后景深应为无穷远 更新内容： 修复了一些BUG。