Elmo TNC4604 instruction manual HOW to USE, Iris terminal

Focusing dial

HOW TO USE

1. Adjust the iris and focus of the lens so that optimum image			CS-mount
may be obtained.
* Usable lenses	Lens		4mm or less
CS-mount lenses, whose length "L" (in the illustration)		L
from the bearing surface of the mount is 4mm or less if
protruded, should be used.
* Using the zoom lens (adjustment of the back focus)	Camera			Lens
The camera is set at the standard back focus position when
shipped from factory. Depending on types of zoom lenses,
however, slight readjustment may be necessary.

Adjust the lens back-focus by turning the focusing dial in

either direction as per the illustration, referring to the following instructions.

1Place an object at any fixed distance and set the focus ring of the zoom lens accordingly.

2Set the zoom lens to full TELE position and obtain the best focus position by turning the focus ring or the zoom lens.

3Set the zoom lens to full WIDE position and obtain the best focus position by turning the

focusing dial located on the side of the camera.

4Repeat procedures 2 and 3 until focus remains constant throughout the zooming range. Note: When weight of the lens is more than 1kg (2.2lbs), the camera should be supported by the

lens rather than relying on camera mounting screw. Adjust the back-focus only when necessary.

* Using an auto iris lens

When a DC driven type auto iris lens is used, set the AUTO IRIS switch at DC, and connect the plug of the lens (for iris terminal) to the IRIS terminal on the right side of the camera.

When a video feedback type auto iris lens is used, set the AUTO IRIS switch at VIDEO, and connect the plug of the lens (for iris terminal) to the IRIS terminal on the right side of the camera. (Refer to Lens manual for the level adjustment.)

Plug for IRIS terminal

(CHUOMUSEN E4-191J-150) Soldering side

IRIS terminal

	DC position	VIDEO position
1	Control -	+9V iris power (50mA Max.)
2	Control +	GND
3	Drive +	0.8Vp-p auto iris video signal
4	Drive - (GND)	GND

*When a video feedback type auto iris lens (peak/average selectable type) is used at peak mode, BLC may not function well. In such a case, select the average mode.

2.Before your use of the camera at AES (Automatic Electronic Shutter) mode.

*When using an auto-iris lens, set the AES switch at OFF. (The AES switch is set at OFF when shipped from factory.)

*The AES mode may increase smears on monitors, which is caused by characteristics of CCD and is not defect.

Set the AES switch at OFF in case smears appear excessively.

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