Hello
http://www.ascendentgroup.com/ir.htm
If you want a good IR camera you want to use an analog CCTV based camera not a CMOS based IP camera.
And when you are using the internet to connect multiple sites together analog transmits over the internet faster with less latency using less bandwidth allowing you not only to view and monitor a situation real time but also effective control PTZ cameras, which cant be done with IP due to its amount of lag and latency on a LAN let alone a WAN connection.
IP cameras are based on CMOS
Analog cameras are based on CCD (usually)
CCD image sensors contain hundreds
of thousands picture elements, called pixels. Each pixel contains a light sensitive element and a capacitor each pixel can work independent for supurb image quality and the ability to handle bright light, lowlight, IR light and high contrast lighting environments unlike CMOS..
This means CMOS has some significant disadvantages compared to CCD, this means CMOS
have inferior ability to cope with ambient lighting such as back light, bright, deep shadows contrasts, low light and IR this is also known as the real word.
What is the Advantage of IP?
Many of the so called advantages of IP simply don't hold water in the real world, IP is mainly Hype and marketing and outside of a few niche applications such as 1 or 2 camera installs, where MP cameras are needed or large scale wireless projects which represent about 2% of the total CCTV market, IP has very few advantages compared to analog based on performance, cost and reliability. (yet all companies touting IP will often use MP cameras to demonstrate the advantages of IP)
And when you are using the internet to connect multiple sites together analog transmits over the internet faster with less latency using less bandwidth allowing you not only to view and monitor a situation real time but also effective control PTZ cameras.
when you go to a DVR you digitize all your video so it has all the capabilities of IP without the lag, image quality loss, failure points, and often network issues.
IF you have to do IP buy an analog IR camera and use an IP server to convert the analog camera into an IP addressable server.
Most IR cameras on the market are complete junk they take standard cameras and put 3$ LED illuminators on them.
There is only one company I use for Active IR night vision Ascendent Technology group.
Unlike traditional IR night vision cameras that use standard CCD, lens and LED’s that operate autonomously, Ascendent’s Active IR cameras have integrated AMC (Automatic Processor Control) and EPC (Electronic Photocell Control), MICF and a host of other technologies, to ensure the Optics, image sensor, lens, MICF and Super bright IR LED’s work in tandem to eliminate hotspots, washout, and under exposure usually associated with IR cameras. This renders flawless active IR performance up to 200m (650ft) Ascendent’s IR are optimally spaced and use different sized and angled LED’s to provide evenly distributed IR to offer both long rage and wide angle illumination. Ascendent's (MICF) mechanical IR cut filter blocks parasitic light before it reaches the sensor father enhancing the image clarity. Ascendent’s IR cameras are designed to offer absolute performance and use the highest quality components and unique manufacturing processes to increase performance and reliability, such as dual PC board design and hand welding of all the IR LED’s (Vista and Apex Series). All these components are integrated into Rugged IP 66-68 Nema 4X enclosures constructed of extruded aluminum and thick high impact optically pure polycarbonate to withstand the most brutal assaults and extreme climates for 24/7 surveillance in mission critical applications.
Ascendent's ZLID laser illuminators combine laser diode technology with
precision engineered optics and sophisticated electronics to provide extreme long
range Active IR illumination greatly exceeding both performance and distance over traditional IR LED illumination in application that require over 200m of illumination.
Advantanges Over Thermal Imaging
Active IR imaging has significant advantages over thermal imaging by producing images with up to 500% higher resolution. Active IR also has the ability to go through optically pure substances such as windshields. Since thermal relies on heat waves it works great for long range detection but does not have the ability to capture details making virtually useless for identification unlike optical systems.
http://www.ascendentgroup.com/ir.htm
Residential or Budget commercial
VIS-48IR-615
Mid-Range IR Camera
See 110 feet in pitch dark
6~15mm lens
Rugged outdoor housing
50~-50C IP 67
As with all the above cameras cameras high resolution, and great signal to noise ratio for detail rich colors while reducing file size on DVR's up to 50%