Panasonic Projector PT-RZ31K User Manual

Chapter 2 Getting Started — Setting up
ENGLISH - 41
Projection distance of each projection lens
A ±5 % error in listed projection distances may occur.
When [GEOMETR Y] is used, distance is corrected to become smaller than the specified image size.
For PT
-

RZ31K
 rWhen the image aspect ratio is 16:10
(Unit: m)
Lens type Zoom Lens
Projection lens Model No. ET-
D75LE6 ET- D75LE10 ET- D75LE20 ET- D75LE30 ET- D75LE40 ET- D75LE8
Throw ratio
*10.9-1.1:1 1.3 - 1.7:1 1.7 - 2.4:1 2.4 - 4.7:1 4.6 - 7.4:1 7.3 -...

Chapter 2 Getting Started — Setting up
42 - ENGLISH
 rWhen the image aspect ratio is 16:9
(Unit: m)
Lens type Zoom Lens
Projection lens Model No. ET-
D75LE6 ET- D75LE10 ET- D75LE20 ET- D75LE30 ET- D75LE40 ET- D75LE8
Throw ratio
*10.9-1.1:1 1.3 - 1.7:1 1.7 - 2.4:1 2.4 - 4.7:1 4.6 - 7.4:1 7.3 - 13.8:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width (SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.78...

Chapter 2 Getting Started — Setting up
ENGLISH - 43
 rWhen the image aspect ratio is 4:3
(Unit: m)
Lens type Zoom Lens
Projection lens Model No. ET-
D75LE6 ET- D75LE10 ET- D75LE20 ET- D75LE30 ET- D75LE40 ET- D75LE8
Throw ratio
*11.1-1.3:1 1.6 - 2.0:1 2.0 - 2.9:1 2.9 - 5.6:1 5.5 - 8.9:1 8.8 - 16.5:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width (SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.78...

Chapter 2 Getting Started — Setting up
44 - ENGLISH
For PT-RS30K
 rWhen the image aspect ratio is 4:3
(Unit: m)
Lens type Zoom Lens
Projection lens Model No. ET-
D75LE6 ET- D75LE10 ET- D75LE20 ET- D75LE30 ET- D75LE40 ET- D75LE8
Throw ratio
*11.0-1.2:1 1.4 - 1.8:1 1.8 - 2.6:1 2.6 - 5.1:1 5.0 - 8.0:1 7.9 - 15.0:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width (SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW)...

Chapter 2 Getting Started — Setting up
ENGLISH - 45
 rWhen the image aspect ratio is 16:9
(Unit: m)
Lens type Zoom Lens
Projection lens Model No. ET-
D75LE6 ET- D75LE10 ET- D75LE20 ET- D75LE30 ET- D75LE40 ET- D75LE8
Throw ratio
*11.0-1.2:1 1.4 - 1.8:1 1.8 - 2.6:1 2.6 - 5.1:1 5.0 - 8.0:1 8.0 - 15.0:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width (SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.78...

Chapter 2 Getting Started — Setting up
46 - ENGLISH
Formula for calculating the projection distance per projection lens
To use a projected image size not listed in this manual, check the projected image size SD (m) and use the 
respective formula to calculate projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
When calculating a projection distance using image size designation (value in inches), multiply the value in...

Chapter 2 Getting Started — Setting up
ENGLISH - 47
For PT-RS30K
 rZoom Lens
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
Min. (LW) Max. (LT)
ET
-

D75LE6 1.0 - 1.2:1
4:3= 0.8150 x SD 
- 0.0566  = 0.9764 x SD - 0.0736
1.0 - 1.2:1 16:9 = 0.8976 x SD 
- 0.0566= 1.0748 x SD - 0.0736
ET
-

D75LE10 1.4 - 1.8:1
4:3 =1.1425 x SD 
- 0.0857 = 1.4767 x SD - 0.1085
1.4 - 1.8:1 16:9 = 1.2446 x SD 
- 0.0857= 1.6086 x SD - 0.1085
ET
-

D75LE20 1.8 - 2.6:1
4:3= 1.4618 x SD 
-...

Chapter 2 Getting Started — Attaching/removing the projection lens (optional)
48 - ENGLISH
Attaching/removing the projection lens (optional)
Move the lens position to the home position before replacing or removing the projection lens. (x   page   72)
Attention
 f Replace the projection lens after turning of f the power of the projector. fDo not touch the electric contacts of the projection lens. Dust or dirt \
may cause poor contact. fDo not touch the surface of the projection lens with your bare hands....

Chapter 2 Getting Started — Attaching/removing the projection lens (optional)
ENGLISH - 49
2) Remove the lens hole cover. (Fig. 2)
 fWhile pressing the lens release button, turn the lens hole cover counter\
clockwise until the mark on the lens 
hole cover ( E

) aligns with the mark on the projector ( E on the left side of LOCK).
3)
 
Insert the projection lens by aligning the mark on the projection lens (\
orange) with the mark on the 
projector (

E on the left side of LOCK) and turn clockwise until it...

Chapter 2 Getting Started — Attaching/removing the projection lens (optional)
50 - ENGLISH
3) Attach the supplied lens hole cover. (Fig. 2)
 fInsert the lens hole cover by aligning the mark on the lens hole cover ( E

) with the mark on the projector (E 
on the left side of LOCK) and turn clockwise until it clicks.
4)
 
Secure the lens hole cover
 . (Fig. 3)
 fUse a Phillips screwdriver to tighten the screw fixing the lens hole cover .
Note
 f Some lenses may not have a screw hole to use to secure the...