Section 1— C-30B Camera
GENERAL INFORMATION
INTRODUCTION
The TEKTR O N IX C-30B is a compact, variable-
magnification, general-purpose camera designed primarily
fo r photographing TEKTR O N IX 400-series oscilloscope
traces and m onitor displays. Its lens magnification is
manually variable from 0.7 to 1.5 in 10 Steps. Three inter-
changeable camera backs can be accommodated by the
C-30B Camera: a Polaroid Pack-Film back, a Polaroid
Roll-Film back, and a 4- by 5-inch Graflok back. When the
camera is mounted on the test instrument, dual swing-away
hinges allow the camera to be swung out of the way, either
to the left or to the right, for direct viewing of the crt
display.
The C-30B Camera is delivered w ith two light seals, one
for the 8- by 10-division crt and the other for the 6- by
10-division crt. The 8- by 10-division light seal comes
inserted in the mounting adapter and is used w ith TEK
TR O N IX 422, 453A, 454A, 485, and 491 instruments. The
6- by 10-division light seal is used w ith TEKTR O N IX 453
and 454 instruments.
SPECIFICATION
The Standard C-30B Camera is shipped w ith an adapter
that can mount directly to a TEKTR O N IX 422, 450-series
(except 455), 485, or 491 instrument. A listing of other
camera adapters and the equipment fo r which they are used
is found in the tabbed Accessories page at the rear of this
manual.
The optical characteristics presented in Table 1-1 are
valid only if the camera has been operating at an ambient
temperature between 0° and +50° C (+32° to +122° F).
Electrical and mechanical, environmental, and physical
characteristics of the camera are listed in Tables 1-2, 1-3,
and 1-4 respectively.
Table 1-1
Optical Characteristics
Characteristics
Performance Requirements
Lens
Maximum Relative Aperture at In finity
f/1.9.
Focal Length
56 mm nominal.
Coverage at Maximum Relative Aperture
A t least 120 mm diameter in object plane.
Magnification (Object-to-lmage Ratio)
1:1.5, 1:1.4, 1:1.3, 1:1.2, 1:1.1, 1:1, 1:0.9, 1:0.85, 1:0.8, and
1:0.7 ±5%.
Geometrical Distortion
Not more than 0.2% as measured at 1:1.1 magnification.
Not more than 0.75% as measured at 1:1.4 magnification and at
1:0.8 magnification.
Relative Illum ination
20% at 120 mm diameter w ith a relative aperture of f/1.9.
Photographie Resolving Power at 1:1
Magnification
Center Pattern
A t least 25 lines/mm, w ith USAF target pattem 1951 on Plus X
pan film , developed in 1:1 DK 50 fo r 6 minutes at 20° C.
A t 120 mm Diameter
A t least 10 lines/mm, with USAF target pattern 1951 on Plus X
pan film , developed in 1:1 DK50 fo r 6 minutes at 20° C.
1-1
Summary of Contents for C-30B
Page 6: ...C 30B Camera The C 30B Camera IV ...
Page 10: ......
Page 12: ...Operating Instructions C 30B Camera Figure 2 1 Camera Controls and connectors 2 2 ...
Page 28: ......
Page 32: ......
Page 34: ......
Page 40: ......
Page 42: ......
Page 46: ...f f ...