Panasonic PT-EW540

 Getting Started — Setting up

Formula to calculate projection distance per Projection Lens

The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)

value.

Lens type
Projection Lens
Model No.
Aspect ratio Projection distance (L) formula
 —
16:10
 
- 
 
- 0.0482

 
- 
 
- 0.0482
4:3
 
- 
 
- 0.0482
 ET-ELW21
16:10 — 
- 
 — 
- 
4:3 — 
- 
 ET-ELW20
16:10
 
- 
 
- 

 
- 
 
- 
4:3
 
- 
 
- 
Long focus zoom lens ET-ELT20
16:10
 
- 0.1140
 
- 

 
- 0.1140
 
- 
4:3
 
- 0.1140
 
- 
 ET-ELT21
16:10
 
- 0.2123
 
- 0.2108

 
- 0.2123
 
- 0.2108
4:3
 
- 0.2123
 
- 0.2108

Lens type
Projection Lens
Model No.
Aspect ratio Projection distance (L) formula
 —
16:10
 
- 
 
- 

 
- 
 
- 
4:3
 
- 
 
- 
 ET-ELW21
16:10 — 
- 
 — 
- 
4:3 — 
- 
 ET-ELW20
16:10
 
- 
 
- 

 
- 
  - 
4:3
 
- 
 
- 