| 摘要 |
A method for determining the depth of field for a specific distance by means of measuring optics comprises manual optical focussing of the measuring optics by means of the human eye without projection onto a focussing screen or intermediate projection surface, monitoring of the movement of the measuring optics mechanism during focussing, determining and indicating the adjusted distance from the movement, wherein, with consideration of focal distance, aperture, hyperfocal distance and circle of confusion, the range of the depth of field to the adjusted distance is arithmetically determined and indicated. |
