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3.9 Selecting a Projection Lens
Projection Lenses come in the following five types. Select the one that
corresponds to the film being used.
Projection Lens Types
1
TYPE1: 7.5x, 7-7.5x
2
TYPE 2: 9-16x
3
TYPE 3: 13-27x
4
TYPE 4: 20-50x
Film
Scanning Size
11"×17" (A3)
35mm
16mm
Source
Document
COM
Half
Full
Half
Full
60
98
325
420
120
208
270
63
70
80
84
2or3
3or4
3or4
3or4
3or4
3or4
3or4
3or4
2or3
3or4
2
4
2
4
4 44
4
3
3
4
4
3
3
4 4
4
4
4
4 4
2 2
1
3
2
3
-
-
-
4
4
4
4 4
4
8-1/2"×11" (A4)
B4
3-2/3"×8-1/2"
1
3
2
3
-
-
3or4
3or4
3or4
3or4
3or4 3or4
3or4
3or4
This list shows the standard types of film and the recommended zoom
ratios of lenses to be used with the system printer.
The size and format of one frame of film may vary depending on the
shooting conditions.
Zoom the lens in and out to find the optimum ratio that will fit the scanning
size.