International projectionist (Oct 1931-Sept 1933)
Reading and Downloading:
Record Details:
Something wrong or inaccurate about this page? Let us Know!
Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.
Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.
View OCR Text
We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
Showing Size of Screen Images at Different Distances with PROJECTION TABLE : Lenses of Different Focal Length
Size of Picture Aperture: 0.825 " x 0.600"
B.7. In.
Uo
ft.
50 ft.
60 ft.
70
ft.
do ft.
90 ft.
100
ft.
110
ft.
120 ft.
130 ft.
lUO ft.
190 ft.
160 ft.
170 ft.
180 ft.
190 ft.
?00 ft.
2.00"
16. »^ 11.9
20.5 ih.s
2^.6 17.9
28.6 20.9
32.9 23.9
37.0 26.9
»H.l 29.9
•V5.3 32.9
2.25"
l»^.6 10.6
IS. 3 13.3
22.0 16.0
25.6
ie.6
29.2 21.2
32.9 23.9
36.6 26.6
U0.2 29.2
»*3.9 31.9
3U.6
2.5.0"
13.1 9.6
16.1* 11.9
\u
23.0
16.8
26.3 19.1
29.6 21.5
32.9 23.9
36.2 26.3
39.5 28.7
«+2.8 31.1
U5.6
33.5
2.75''
12.0 8.7
15.0 10.9
17.9 13.0
20.9 15.2
23.9
26.9 19.6
29.9 21.8
32.9 23.9
36.0 26.1
39.0 28.3
h?.0
30.5
"^5.0 32.7
M.l
31^.9
3.00"
10.9 g.O
13.7 10.0
16. U 11.9
19.2
it.o
22.0 16.0
2I1.6 17.9
27. '^ 20.0
■^0.2 22.0
■<2.9
23.9
35.7 2«S.9
38. U 27.9
Ul.i
29.9
U6.7 -h.O
3.25"
10.1
7.3
12.7
9.2
15.? 11.0
^7-7 12.8
20.2
l»+.7
22.8 16.6
25.3 18. U
27.8 20.3
30. U 22.1
32.9 23.9
35.5 25.8
38.0 27.6
UO.*^ 20.5
''3.0 11.3
h^.6
3.50"
9.U 6.g
^•7 g.5
lu.l 10.3
16. u
11.9
18.8 13.7
21.1 15.»^
23-5 17.1
25.9 18.8
28.3 20.5
30.5 22.2
32.9 23.9
■^5.2 25. S
27.-^
39.9
29.0
1^2.3
■?o.g
U11.7 "^2.5
117.0 ■^li.2
3.75"
10.9 7.9
13.1
9.6
15.3 11.1
17.5 12.8
\l:l
22.0 16.0
2U.0 17.6
26.3 19.1
28.6 20.7
30.7 22.-^
■^2.9 2"^. 9
■^«S.2 2^.6
17.1 ?7.2
19.'^ 28.8
U7.9 ■^1.9
J+.OO"
10.2
l.h
12.3
«.9
l'+.3 10. i^
I6.«i 11.9
li:l
20.5 ih.S
22.6 16. »i
2U.6 17.9
26.7 19. IJ^
28.8 20. <5
30.8 22. U
•^2.9 2->1.9
■^t^.O 25. li
'6.9
■^9.1
28. U
l^l.l 29.9
U.?R"
9.7 7.1
11.7 «.5
13.5 9.8
15.5 11.2
n.h 12.7
19.3 1*^.0
21.2
15."+
23.2 16,8
2S.2 18.-^
27.1 19.7
29.1 21,1
10.9 22. S
■^2.9 23.9
26,8
•^8.8 ?8.'^
U,50''
10.9 g.o
12.8 9.3
IU.6 10.6
16.'+ 11.9
18. 3 13.3
20.1 II+.6
22.0 16.0
?3.7 17.2
2R.6 18.6
27.'+ 20.0
29.2 21.2
■^1.0
22.6
32.9 23.9
Vi.it,
T<.6 26.6
'+.75"
10.14.
7.6
12.2 8.9
13-9 10.1
15.7
11.4
17.3 12.6
19.0
13.0
20.7 15.1
22.5 16. i
?4.2 17.6
26.0 18.9
27.6 20,1
29. U21. U.
31.1
22.6
■^2.0 2-^,9
5.00"
11.6 &.h
13.1 9.6
11+.9 10. s
16. «^ 11.9
18.1 13.2
\l:l
21. U 15.6
23.0 16.8
17.9
26.3 19.1
27.9 20.3
29.6 21.5
22.8
■^2.9
2-^.9
5.25"
10.9 7.9
12.5 9.1
ii+.i 10.3
15.7 11. i^
17.2 12.5
18.8 13.7
20.3 lli.g
21.8 15.9
?3.5 17.1
25.1 18. 3
26.7 19. It
28.3 20.5
?1.7
22.8
5.50"
10.5 7.6
12.0
8.7
13.5 9.8
15.0 10.9
16. i+ 11.9
17.9 13.0
19.h lU.l
20.9 15.2
2?.k 16. -^
23.9 17.^
25. u
18.5
26.9 19.6
28.1; 20.6
?Q.Q 21.8
1
5-75"
8.3
12.8 9.3
Ih.? 10.3
15.7 11. u
17.1 12.1;
18.6 13. S
20.0 II+.5
21. U 15.6
22.9 16.6
ph.T, 17.7
25.8 18.7
27.2 19.8
28.6 20.8
6.00"
10.9
3.0
1?.3 8.9
13.7 10.0
15.1 10.9
16. U 11.9
17.8 13.0
19.2 lij-.O
20.5 lh.9
22.0 16.0
17.0
2U.6 17. '^
26,0
18.9
27. u
20.0
6.?5"
10.5 7.7
11.9 8.6
13.1
9.5
IU.7 10. u
15.9 11. li
17.0 12. U
18. U 13.3
19.7 1I+.3
21.0 15.-^
22.3 16.2
2-^.6
l7.2
25.0 18.1
26. -^ 19.1
6.50"
11. u 8.3
12.7 9.2
13.9
10.1
15.2 11.0
16. U 11. .9
17.7 12.8
18.9
13.7
20.2 l'+.7
21.5 15.6
22.8 16.6
2U,0 17.5
2^.3 18. U
6.75"
10.9
7.9
12. ? 8.8
13.^
9.8
1U.5
10.6
15.9 11.6
17.0 12. li
18. 3
19.5 1U.2
20.7 15.1
22.0 16.0
23.2 16.9
2U.U 17.8
7.00"
10.5 7.6
11.7
8.S
12.9 q.U
lU.i 10. -^
11.1
16. li
11. q
17. S 12.8
18.8 11.7
19.9 1'4.5
21.1
15. »+
22.3 16.2
23.5 17.1
7.50"
10.9 7.9
12.0 8.7
13.1
9.6
11. 2 10.3
15.3
11.1
16. U 11.9
17.5 12.8
18.7 1-^.6
19.7 ih.k
20.8 lf^.2
22.0 16.0
g.OO"
10.2
11.2
8.2
12.3 8.9
10. u.
IR.U 11.2
16. 1^ 11.9
17.'+ 12.7
18, «S 13.'+
19.5 l'i.2
20.5 14.9
g.50"
10.6 7.6
4-7 8.5
12.6 9.1
13.5
9.8
10.5
15.5 11.2
16. U 11.9
17. »+ 12.7
18.1; 13.'+
19.3 lli.O
9.00"
11.0 8.0
11.8 8.6
12.8 9.3
13.7 10.0
lli.6 10.6
15.5 11.3
16. »v 11.9
17.3 12.6
18.3 13.3
E.r.
r In.
ho ft.
50
ft.
60
ft.
70
ft.
80,
ft.
90 ft.
100
ft.
110
ft.
120
ft.
130 ft.
1^0 ft.
ITO ft.
160 ft.
170 ft.
ISO
ft.
190 ft.
200 ft.
SIZES GIVEN ARE TO THE NKAPE8T TENTH OF A FOOT
This table supersedes all previous screen image tables
[This table prepared exclusively for and copyrighted, 1932, by [Courtesy, Bausch & Lamb Optical Co.] International Projectionist]
— i