Good quality IR camera

[bhosugope 0]

Hi everybody ,

 

Please suggest a good IR camera , with upto 25 mtr clear night vision and wide camera angle . The one i bought gives hazy image and captures lot of noise ( dust particles etc ) in low light and the outdoor picture quality is very low as compared to bare eyes.

 

Thank you.

[rory 0]

What camera do you have now?

[bhosugope 0]

Thats a locally assembled CCD IR camera .

Features:

•1/3" Sony CCD

•420 TV Lines

•48 infrared (IR) LEDs, infrared (IR) Cut Removable

•6.0mm Fixed Lens

•0.1 Lux @ F2.0 (0 Lux infrared (IR) On)

•IR Distance 100 - 130 ft. (30 - 40m)

•Weather Proof IP65 Rating

•90 - 110mA infrared (IR) Off; 390 - 470mA infrared (IR) On

 

Specifications:

Image Sensor

1/3" Sony CCD

Effective Pixels

NTSC: 768 (H) X 494 (V)

Synchronization Internal

DSP Sony

S/N Ratio More than 52dB

Resolution 420 TV Lines

Minimum Illumination 0.1 Lux @ F2.0 (0 Lux infrared (IR) On)

Electronic Shutter Speed 1/50 (1/60) - 1/100, 000 sec

White Balance Auto

Gain Control

Auto

 

IR LED 48 infrared (IR) LED

IR Wavelength

850nm

 

IR LED Life 20,000 Hours

View Angle 60°

IR Working Distance

100 ~ 130 ft / 30 ~ 40 m

 

Lens

6.0mm Fixed Lens with Infrared (IR) Cut

 

IP Rating Weatherproof IP65

Power Supply 12V DC (not included)

Power Consumption

90~110mA @ infrared (IR) Off, 390-470mA @ infrared (IR) On

 

Operating Temp -20oC to 50oC (-4oF to 122oF)

Humidity RH 95% Max.

Dimension 266(L) x 106.3(W) x 225.95(H) mm

Weight 2.8 lbs / 1270g (with bracket)

[Soundy 1]

Dust particle and such are a side effect of IR cameras - there's no way around it short of losing the IR. Moving to an external illuminator might help a bit, but you're still lighting up anything floating in front of the camera.

[bhosugope 0]

you mean to say there is no noise filtering mechanism .

Can the lack of clarity be due to a poor quality sensor or something

else ,like LED etc.

[bhosugope 0]

In non IR mode should the clarity and size be as seen by human eyes .

[tomcctv 187]

In non IR mode should the clarity and size be as seen by human eyes .

 

 

in night time No. i see you have listed a spec of a camera but to be honest it means nothing. you are best posting make and mod of your camera. and also your DVR can also play in a big factor to your camera problem. what make is your dvr and mod.

[Soundy 1]

you mean to say there is no noise filtering mechanism .

No; I mean, dust, snow, bugs, or anything else in front of the camera will reflect the IR light, and the camera will see it.

 

You're not dealing with a "thermal" camera here that picks up differences in temperature... the IR LEDs work just like a flashlight, shining light on your subject, except in this case it's a wavelength of light that's just outside the range of human vision, but within the range of the sensor. Thus, it will illuminate anything that's reflective to IR.

 

Can the lack of clarity be due to a poor quality sensor or something else ,like LED etc.

 

It could be due to a poor quality sensor, poor quality lens, out of focus lens, poor assembly leading to the lens being crooked or out of position, poor quality processing (electronics)... I've even seen instances where there were foreign objects (dust, oil, fingerprints, etc.) ON the sensor, or on the back end of the lens. If the lens and LEDs are both behind the same glass/plastic, and there's no gasket to isolate them, or the gasket is poorly fitted, the IR can reflect off the inside of the glass/plastic and cause a "hazy" picture as well.

 

Unfortunately, one of the downsides of these kind of cheap cameras is little or no QA in the manufacturing process, which can lead to these sorts of issues.

[bhosugope 0]

The make of my dvr is Avtech 791ZA .

The cameras performance in the day time is good ,

so probably there is a problem with the IR part or LEDs .

The question still stays , if i need to buy another one ;

which one should i buy ( ofcourse at a moderate price ).

 

Please reply .

 

Thank you.