本帖最后由 andas 于 2012-12-16 21:01 編輯
A narrow field of view produces___________. 狹窄觀看條件會產生; a、higher magnification and a greater depth of field 目測對象的尺寸和深度會變得越大 b、higher magnification and a smaller depth of field 目測對象的尺寸變大和深度變小 c、less magnification and a greater depth of field 尺寸較小,深度較深 d、less magnification and a shorter depth of field 尺寸較小,深度較淺
請解釋什么是狹窄觀看條件。。 |