Adjusting the Projected Image H series Acer H7850

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How to optimize image size and distance

Consult the table below to find the optimal image sizes achievable when the 
projector is positioned at a desired distance from the screen.
If the projector is 2.0 m from the screen, good image quality is possible for 
image sizes between 41" and 65".

Note: Remind as below figure, the space of 81 cm height is 
required when located at 2 m distance.

Desired

Distance 

(m)

<A>

Screen size

Top

Screen size

Top

(Min zoom)

(Max zoom)

Diagonal 

(inch)

<B>

W (cm) x H 

(cm)

 From base to 

top of image 

(cm)

<C>

Diagonal 

(inch)

<B>

W (cm) x H 

(cm)

From base to top 

of image (cm)

<C>

1.0

20.00

45 x 25

25

33

72 x 40

40

1.3

26

59 x 33

33

42

94 x 53

53

2.0

41

90 x 51

51

65

144 x 81

81

2.5

51

113 x 63

63

81

181 x 101

101

3.0

61

135 x 76

76

97

216 x 121

121

3.5

71

158 x 89

89

114

252 x 142

142

4.0

81

180 x 101

101

130

288 x 162

162

5.0

102

225 x 127

127

162

360 x 202

202

6.0

122

270 x 152

152

195

432 x 243

243

7.0

142

315 x 177

177

227

504 x 283

283

8.0

163

360 x 203

203

260

576 x 324

324

9.0

183

405 x 228

228

292

647 x 364

364

9.3

189

419 x 236

236

302

669 x 376

376

Zoom Ratio: 1.6x

65"

41"

1""

41"

41"

1

41"

A

C

B

Height: 81 cm
from base to top 
of image

Height: 
51 cm

2.0 m
Desired Distance

Max scr

een siz

e

Min scr

een siz

e