Stage Projector
BP 2,5 CT
Pani Projection and Lighting Vertriebs GmbH
9) Projection Diagram
for O= 17cm
calculating formulas
F ... focal length of projection lens
B ... width of the image
D ... projection distance (measured from the middle of the objective lens)
O ... object size (i.e. the used slide format)
used slide format (O)=
17cm for glass slides
15,5cm for filmholder
16
11cm
13,5
cm
18c
m
22
cm
25
cm
27
cm
33
cm
40
cm
50
cm
60
cm
80
cm
12
5c
m
pr
o
je
ct
io
n
d
is
ta
n
ce
M
E
T
E
R
1
00
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
width of projection
METER
30
25
20
15
10
5
fo
ca
l l
en
gt
h
F
Summary of Contents for BP2,5CT
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