Toa CT-0420SG User Manual
Note
The design and specifications are subject to change without
notice for improvement.
4 mm
1 : 2.0
1/ 3 type CCD Opposite angle: 86.1
°
Horizontal: 68.4
°
Vertical: 51.2
°
1/ 4 type CCD Opposite angle: 64.1
°
Horizontal: 51.2
°
Vertical: 38.3
°
F2.0 – F64
0.3 m (11.81")
8.55 mm
12.5 mm
CS mount
– 20°Cto +50
°C (no condensation)
(– 4°F to +122°F)
Black
36.5 (W) x 42.3 (H) x 65.9 (D) mm
(1.44" x 1.67" x 2.59")
79 g (0.17 lb)
Focal Length
Maximum Aperture Ratio
Angle of View
Aperture Range
Minimum Object Distance
Back Focus Length
Flange Back Length
Lens Mount
Operating Temperature
Finish
Dimensions
Weight
PINHOLE LENS
CT-0420SG
Please follow the instructions in this manual to obtain the
optimum results from this unit.
We also recommend that you keep this manual handy for future
reference.
2. GENERAL DESCRIPTION
The TOA Pinhole Lens is a DC controlled automatic iris lens. The
automatic iris close system protects the imager and filter from
extremely bright lights when power is switched off.
3. HANDLING PRECAUTIONS
• Because the lens features a CS mount with its flange back (the
distance between the mount surface and the focal point) of 12.5
mm long, make sure that the camera you use has the same
flange back length.
• Use the lens under only DC control.
• Do not give a great shock nor vibration to the lens.
• Avoid using the lens (camera) in dusty area or being splashed
by water.
• Do not touch directly or rub the lens surface firmly. When dust
is on the lens, blow off with a blower or brush it off. When soiled
with oil or dirt, gently wipe down the lens spirally and outwardly
from the center with a lens cleaning paper damped slightly with
a liquid cleaner sold in the market.
• Unnecessarily rotating the iris control may make the video
signal level too high or too low, causing the lens to malfunction.
5. MOUNTING TO CAMERA
(1) Fix the lens in position by turning it clockwise as far as it will
go.
(2) Adjust the mount position.
Loosen the lens by turning it one counterclockwise rotation
from the fixed position. Pushing the lens strongly toward the
camera, turn it until it reaches the desired new position. Turn
the lens clockwise once more to fix it in position again, then
check to confirm that this position is correct. (The position of
the camera mount remains adjustable as long as the lens is
pushed strongly in the direction of the camera.)
Note
If the mount position does not change, repeat Step 2 to adjust
the position by pushing the lens toward the camera a little
more strongly.
6. FOCUS ADJUSTMENT
Loosen the focus ring knob, then focus the camera on the object
by turning the focus ring. The object that was brought into focus
in bright locations could be out of focus in dark conditions. It is
recommended to focus the camera on the object in dark
conditions or using a commercially available ND filter. For the
camera equipped with the adjustment switch, set it to "ON"
position before focusing.
• Ensure that the lens is securely tightened. If it is not tightened
or firmly secured after installation, it could fall down, possibly
resulting in personal injury.
1. SAFETY PRECAUTIONS
• Before installation or use, be sure to carefully read all the
instructions in this section for correct and safe operation.
• Make sure to observe the instructions in this manual as the
conventions of safety symbols and messages regarded as very
important precautions are included.
• We also recommend you keep this instruction manual handy for
future reference.
• Don't look through the lens directly at the sunshine this could
cause blindness.
INSTRUCTION
MANUAL
4. NOMENCLATURE AND FUNCTIONS
7. SPECIFICATIONS
Indicates a potentially hazardous situation which, if
mishandled, could result in death or serious personal injury.
WARNING
Indicates a potentially hazardous situation which, if
mishandled, could result in moderate or minor personal
injury, and/or property damage.
CAUTION
Lens cable
Connects to the camera output
connector for lens after the lens
is mounted to the camera.
CS mount
Screw the lens into the CS mount of
the camera.
Focus ring knob
Use this knob to adjust focus ring.
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