Sharp PG-C355W Standard Zoom Lens, Setting Up the Projector, 4:3 Signal Input (Normal Mode), F1.7-F1.9, f=28.0-33.6mm 16:10 Signal Input (Normal Mode)

Setting Up the Projector

Standard Zoom Lens

F1.7-F1.9,f=28.0-33.6 mm 16:10 Signal Input (Normal Mode)

Picture (Screen) size

Projection distance [L]

Distance from the lens center

Diag. [x]

Width

Height

Minimum [L1]

Maxmum [L2]

to the bottom of the image [H]

500''

(1270 cm)

1077 cm

(424'')

673 cm

(265'')

18.8 m

(61' 7")

22.5 m

(73' 11")

–16 cm

(–6 5/16")

400''

(1016 cm)

862 cm

(339'')

538 cm

(212'')

15.0 m

(49' 3")

18.0 m

(59' 2")

–13 cm

(–5 3/64")

300''

(762 cm)

646 cm

(254'')

404 cm

(159'')

11.3 m

(37' 0")

13.5 m

(44' 4")

–10 cm

(–3 51/64")

250''

(635 cm)

538 cm

(212'')

337 cm

(132'')

9.4 m

(30' 10")

11.3 m

(37' 0")

–8 cm

(–3 5/32")

200''

(508 cm)

431 cm

(170'')

269 cm

(106'')

7.5 m

(24' 8")

9.0 m

(29' 7")

–6 cm

(–2 17/32")

150''

(381 cm)

323 cm

(127'')

202 cm

(79'')

5.6 m

(18' 6")

6.8 m

(22' 2")

–5 cm

(–1 57/64")

120''

(305 cm)

258 cm

(102'')

162 cm

(64'')

4.5 m

(14' 9")

5.4 m

(17' 9")

–4 cm

(–1 33/64")

100''

(254 cm)

215 cm

(85'')

135 cm

(53'')

3.8 m

(12' 4")

4.5 m

(14' 9")

–3 cm

(–1 17/64")

80''

(203 cm)

172 cm

(68'')

108 cm

(42'')

3.0 m

(9' 10")

3.6 m

(11' 10")

–3 cm

(–1 1/64")

60''

(152 cm)

129 cm

(51'')

81 cm

(32'')

2.3 m

(7' 5")

2.7 m

(8' 10")

–2 cm

(–49/64")

40''

(102 cm)

86 cm

(34'')

54 cm

(21'')

1.5 m

(4' 11")

1.8 m

(5' 11")

–1 cm

(–1/2")

χ:	Picture size (diag.) (in/cm)	The formula for picture size and projection distance
L:	Projection distance(m/ft)	[m/cm]
L1:	Minimum projection distance (m/ft)	L1	(m) = 0.03755χ
L2:	Maximum projection distance (m/ft)	L2	(m) = 0.04507χ
H:	Distance from the lens center to the bottom of the image (cm/in)	H (cm) = –0.03209χ
		[Feet/inches]
		L1	(ft) = 0.03755χ / 0.3048
		L2	(ft) = 0.04507χ / 0.3048
		H (in) = –0.03209χ / 2.54

4:3 Signal Input (Normal Mode)

Picture (Screen) size

Projection distance [L]

Distance from the lens center

Diag. [x]

Width

Height

Minimum [L1]

Maxmum [L2]

to the bottom of the image [H]

400''

(1016 cm)

813 cm

(320'')

610 cm

(240'')

17.0 m

(55' 9")

20.4 m

(66' 11")

–15 cm

(–5 23/32")

300''

(762 cm)

610 cm

(240'')

457 cm

(180'')

12.8 m

(41' 10")

15.3 m

(50' 3")

–11 cm

(–4 19/64")

250''

(635 cm)

508 cm

(200'')

381 cm

(150'')

10.6 m

(34' 10")

12.8 m

(41' 10")

–9 cm

(–3 37/64")

200''

(508 cm)

406 cm

(160'')

305 cm

(120'')

8.5 m

(27' 11")

10.2 m

(33' 6")

–7 cm

(–2 55/64")

150''

(381 cm)

305 cm

(120'')

229 cm

(90'')

6.4 m

(20' 11")

7.7 m

(25' 1")

–5 cm

(–2 9/64")

120''

(305 cm)

244 cm

(96'')

183 cm

(72'')

5.1 m

(16' 9")

6.1 m

(20' 1")

–4 cm

(–1 23/32")

100''

(254 cm)

203 cm

(80'')

152 cm

(60'')

4.3 m

(13' 11")

5.1 m

(16' 9")

–4 cm

(–1 7/16")

80''

(203 cm)

163 cm

(64'')

122 cm

(48'')

3.4 m

(11' 2")

4.1 m

(13' 5")

–3 cm

(–1 9/64")

70''

(178 cm)

142 cm

(56'')

107 cm

(42'')

3.0 m

(9' 9")

3.6 m

(11' 9")

–3 cm

(–1")

60''

(152 cm)

122 cm

(48'')

91 cm

(36'')

2.6 m

(8' 4")

3.1 m

(10' 1")

–2 cm

(–55/64")

40''

(102 cm)

81 cm

(32'')

61 cm

(24'')

1.7 m

(5' 7")

2.0 m

(6' 8")

–1 cm

(–37/64")

χ:	Picture size (diag.) (in/cm)	The formula for picture size and projection distance
L:	Projection distance(m/ft)	[m/cm]
L1:	Minimum projection distance (m/ft)	L1	(m) = 0.04251χ
L2:	Maximum projection distance (m/ft)	L2	(m) = 0.05102χ
H:	Distance from the lens center to the bottom of the image (cm/in)	H (cm) = –0.03633χ
		[Feet/inches]
		L1	(ft) = 0.04251χ / 0.3048
		L2	(ft) = 0.05102χ / 0.3048
		H (in) = –0.03633χ / 2.54

Note

•Allow a margin of error in the value in the diagrams above.

•When the distance from the lens center to the bottom of the image [H] is a negative number, this indicates that the bottom of the image is below the lens center.

•See page 18 about projection distance [L] and distance from the lens center to the bottom of the image [H].

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