1) скорость
2) светочувствительность
3) светосила (объектива)
4) относительное отверстие объектива
- speed of photographic material
- angular speed
- backgage speed
- copying speed
- crawl speed
- cutting speed
- design speed
- drying speed
- effective speed
- electrophotographic speed
- emulsion speed
- engraving speed
- film speed
- inch speed
- leading-in speed
- lens speed
- microfilm speed
- photographic speed
- plate speed
- press speed
- printing speed
- production speed
- recording speed
- relative speed
- roll speed
- running speed
- shutter speed
- slitting speed
- shutter speed
- top speed
- total speed
- washing-up speed
- winding-off speed