七麦数据

Projector Lens Calculator is a quick reference tool for video technicians and projectionists.
 
Features:
- Calculate lens throw ratio.
- Calculate screen size.
- Calculate projector distance.
- Calculate projector lens.
- Choose between multiple ratio : 4:3 / 16:9 / 16:10 or custom.
- Choose between imperial and metric system.
- Get the pixels count per inch/cm.
- Get the lumens per ft2/m2.