Elmo 16-CL Optical - Wide-Angle Projection Lens F1.4 20 mm; Conversion Lens; Zoom Converter

!
• Wide-angle projection lens F1.4 20mm
•
Conversion lens
•
Zoom converter
This wide -angle lens is designed for
projection in a small room.
This attachment lens converts the
focal length
of the projection lens
to either xO.8 or x1.25, i.e., the
standard 50mm lens plus this
accessory serves as a 40mm wide-
angle lens or by reversing it a
63mm telep hoto lens. You can
make use of it when the projected
image
is too small or large .
When
this converter is used with
the projection lens, the focal
length
is converted cont in' uously
from xO .8 to x 1. 25. Using it ,
you can vary the size of the pro-
jected image wi thou t c ha nging th e
projector-to-screen distance.
PROJECTION DISTANCE AND IMAGE SIZE
The projection distance refer s to the dist a nce between the film pla ne and the sc reen .
In meter . In feet . (L: Length, W: Width)
3
5
10
15
20 ~
30
40 50
60
10
15 20
30
50
70
90
110 130
160
1
90
---~-
e---
~~-
Standard le ns
L
0.4
0.7
1. 0
1.4
2~ I 2.9
3.6
4 ~ 3
5.B
1.4
2~ I
2.9
4.3
7.2
10. 1 13 .0
15.B
I B.7
(F I. 2,50 mm)
IV
0.6 0 .9
1.3
1.9 2.9
3.B
4.B
5.B
7 ~ 7
1.9
2.9
3.B
5.B 9.6
13~5
17.4
2
1. 2
25.1
Sta nd a rd le ns
L
0.5 0.9
1.2
I.B
2.7 3.6
4
.5
5.4
I.B
2.7
3.6
5.4 9.0
12.6
16.2
19.5
with Co nv. lens
(x 0.8)
IV
0~ 7 1.2 1.7
2.4
3.6
4 .B 6.0
7 .2
2.4
3.6
4.S 7.2
12.0
16.9
2
1. 7 26.5
Sta nd ;;u d lens
L 0.3
0~ 6
O .B
1. 1 1. 7
2.3 2.9
3.4
4.6
5 ~6
1.1 1.7
2.3
3.4
5.B
B.I
IDA
12.7 15.0
IS.4
with Co ny . lens
(x
1. 25)
IV 0.4
0. 8
1.1 1.5
2.3
3.1
3.B
4.6 6 ~ 2
7.5
1. 5 2~3
3. 1
4.6
7.7 10.8
13.9
17 .0
20 ~ I
24.7
Standard le ns
L 0.4
0 ~ 7 9~9
1.4
2. 1 2.9
3.6
4.3
5.S
1 .4
2~ I
2.9
4.3
7.2
10.0
13~0
15~S
I B. 7
with Elmo
scope lens
IV 1.1
1. 9
2~7 3~B
5.B
7.7 9.6
11 .5
15.4
3.S
5~B
7.7
11.5 19.3
27.0
3 4 ~7
42.4
50 .1
Telep hoto lens
L
0.3 0 .5
0 ~7 0 ~9
1 .4 1.9
2
.4
2.9
3~B
4.B
5~B 0.9
1 .4 1.9
2.9
4.B
6.7 B~6
1O~6
12.5
15 .4 I B.3
(F I. B,75 mm)
IV 0 .4
0 ~ 6
0~9 1.3
1.9
2.6
3.2
3.B
5.1 6.4
7.7
1.3
1. 9
2.6
3.B
6.4
9~0
II ~6
1 4~ 1
16.7
20.6
24 .4
Wide·angle lens
L
1.1 I.B 2.5
3.6 5.4
~
5. ~
7.2 10.B
I
B. O
t--
(F I .4,20mm )
IV 1. 5 2.4
3.4
4 .B
7.2
4.B 7 ~2
19.3
14.5
24.1
23