CS-DN289

CS-DN289
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The CS-DN298 can be used to provide a dynamic field of view control between 2.9mm and 8.0mm focal lengths. It should be noted that the picture will have an "artifically" wide field of view with some curvarture of the video image for any focal length setting wider than roughly 5.0mm. Unfortunately, there is NO way to provide such a wide viewing angle without this type of distortion. The distortion disappears when the lens is adjusted to a more narrow field of view.

This lens has special IR-corrected optics built into the design. This makes the lens compatible with both visible AND infrared lighting without a shift in focus between lighting types. Use the CS-DN298 lens with black & white cameras or Day / Night color cameras (mechanical IR filter removal required) to get crisp, vivid detail under visible or IR lighting.

This is a varifocal zoom lens, and all lens adjustments must be made manually by hand. Once the desired focal length is acheived, the lens has thumb screws which tighten to maintain that specific focal length. We also carry fixed focus C-mount lenses for those applications where desired.

The CS-DN298 employs voltage from the camera's auto-iris port to automatically adjust the amount of light which passes through the lens optical glass and reaches the imager. This feature allows for brilliant lighting in many diverse and changing lighting conditions.

This lens has a security-industry standard CS-mount lens thread, making it compatible with the following Eyespyvideo.com models: TV-CSHRL, TV-CSHR, TV-CSHDN, and TV-BCSHR. The auto-iris port on these cameras provides seamlessly compatibilty with the CS-DN298. However, this lens is only intended for use with BOTH visible and infrared (IR) lighting. For proper compatibility, the camera CANNOT have an IR filter -- or must have a method for removing the IR filter for use with infrared lighting. Our TV-BCSHR is the best camera choice for this particular lens.

  • Please click here for more information regarding lens optics and choosing the right lens.


CS-DN298....................................Only $99.95

LENS-SVC......................Professional Shop Lens Installation/Back Flange Adjustment Service
is FREE when lens is ordered with compatible camera!

Lens Technical Specifications

Lens Focal Length
2.9 mm ∼ 8.0 mm varifocal (manually adjustable) zoom
Lens Aperture (iris)
F0.95 ∼ 360
Iris Control
automatic DC iris adjustment
Focus Control
manual
Input Voltage
12v DC from camera auto iris port
Thread Type
security standard CS-mount style
Approx. Field of View
94.4° H x 69.3° V (122° diagonal) ∼
35.0° H x 26.2° V (44° diagonal)
Flange Back Focal Length
12.5mm
Operating Temperature
-10° C ∼ +50° C
Dimensions
1.6" long x 1.25" diameter (1.9" @ widest point) /
40mm long x 32mm diameter (48mm @ widest point)
Weight
1.5oz. / 43.0g
Auto Iris Plug Cable Length
10.4" / 26.5cm
Warranty
one year
Compatible with the following camera models:
Details
SKU 2281000CSDN298
Weight 0.50 lbs
 
Price: $99.95
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10-13-2011
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  • The wide dynamic range (WDR) function of a camera is intended to provide clear images even under extreme light circumstances where intensity of illumination can vary excessively, namely when there are both very bright and very dark areas simultaneously in the field of view of the camera. WDR enables the capture and display of both bright and dark areas in the same frame, in a way that there are details in both areas, i.e. bright areas are not saturated, and dark areas are not too dark. It also offers amazing low light capability.
  • Digital Noise refers to the random dot pattern that is superimposed on the picture as a result of electronic noise; the 'snow' that is similar to what can be seen with poor (analog) television reception or on VHS tapes. The Digital Noise Reduction feature reduces that "noise" from the cctv camera image.
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  • Feel free to call us at 800-568-9291 for more information.


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