LEITZ PRADOVIT-N - Projection Distance and Image Size

Projection Distance and Image Size
The following table indicates the width of a square screen necessary for various projection
distances and focal lengths of projection lenses.
Focal Length
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Projection Distances and Screen Image Sizes for 24 x 36 mm Frame (in feet)
of Lens
10 ft.
I
13 ft.
I
16 ft.
I
20 ft.
I
23 ft.
I
26 ft.
90 mm (3'12") 2'6" x 3'9" 3'3" x 5'0"
4'0" x 6'2"
5'1"x7'8" i 5'10"x8'11" I 67" x 10'0"
100 mm (4")
2'3" x 3'5" 2'9" x 4'6" 3'8" x 5'6"
4'6" x 6'11" 15'3" x 7'11" 5'11" x 9'
120 mm (5") 2'5 x 3'8"
3'x47" 3'9"x5'9" 4'4"x67" I 4'11" x 7'6"
I
Projection Distances and Screen Image Sizes for 24 x 36 mm Frame (in feet)
30 ft.
I
33 ft.
I
36 ft.
I
40 ft.
43 ft.
90 mm
(3'1>")
177" x 117"
I
100 mm
(4")
6'10" x 10'4" 7'6"x11 '6" 8'2"x12'6"
I
120 mm
(5")
I 5'8" x 8'8"
6'3"x9'6" 6'10"x10'4" 77"x117"
8'2"x12'6"
This table applies to 24x36mm miniature transparencies. With l'hx1'h inch (38x38mm) superslides the
screen image is approximately 10 per cent larger at the same projection distance.
For larger projection distances and screen image sizes please ask for further details.
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