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POWER ACOUSTIK LP-3CSB License Plate Camera with Night Vision, Proximity Collision Avoidance Sensors, Black Color
List Price:  |
Description2 backup sensors ccd camera night vision grid in meters license plate mounting vertical angle adjustment water sealed cables chrome |
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Waterproof Car Rear view video Camera CMOS 135 Degree Built in Night Sensor
Sale Price: $12.99 |
DescriptionSpecifications: Image Sensor: CMOS/CCD |
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7 inch TFT LCD Digital Car Rear View Monitor with Waterproof Car Rear View Camera combo
Sale Price: $59.99 |
DescriptionMonitor Specifications: |
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ATC Premium Sony NP-BG1 NP-FG1 NP-FS10 NP-FS11 NP-FS12 NP-FS21 NP-FS22 NP-FS31 NP-FS32 Digital Camera Battery Rapid Charger with Car Adapter for Sony AC-VQ11 CCD-CR1 CCD-CR1E DCR-PC1 DCR-PC1E DCR-PC2 DCR-PC2E DSC-N1 DSC-N2 DSC-T100 DSC-T20 DSC-W100 DSC-W110 DSC-W120 DSC-W130 DSC-W150
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DescriptionSpecification: Battery Charger: Input: DC 12V¡À0.05V Max. 600mA Output: DC 4.2V¡À0.1V Max. 600mA AC Adapter: Input: AC 100V-240V 150mA 50/60Hz Output: DC 12V 600mA Input: 12V-24V Output: 12V-24V Compatible With Battery P/N... |
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ATC Replacement Quick Battery Charger for the Sony NP-BG1 NP-FG1 NP-FS10 NP-FS11 NP-FS12 NP-FS21 NP-FS22 NP-FS31 NP-FS32 Battery compatible with Sony AC-VQ11 CCD-CR1 CCD-CR1E DCR-PC1 DCR-PC1E DCR-PC2 DCR-PC2E DSC-N1 DSC-N2 DSC-T100 DSC-T20 DSC-W100 DSC-W110 DSC-W120 DSC-W130 DSC-W150
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DescriptionSpecification: Battery Charger: Input: DC 12V¡À0.05V Max. 600mA Output: DC 4.2V¡À0.1V Max. 600mA AC Adapter: Input: AC 100V-240V 150mA 50/60Hz Output: DC 12V 600mA Input: 12V-24V Output: 12V-24V Compatible With Battery P/N... |
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ATC Digital Camera Sony Sony NP-BG1 NP-FG1 NP-FS10 NP-FS11 NP-FS12 NP-FS21 NP-FS22 NP-FS31 NP-FS32 Compact Battery Charger
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DescriptionSpecification: Battery Charger: Input: DC 12V¡À0.05V Max. 600mA Output: DC 4.2V¡À0.1V Max. 600mA AC Adapter: Input: AC 100V-240V 150mA 50/60Hz Output: DC 12V 600mA Input: 12V-24V Output: 12V-24V Compatible With Battery P/N... |
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Fujitsu ScanPartner FI-4120C Color Duplex Scanner
Sale Price: $349.99 |
DescriptionThe ScanPartner FI-4120C color duplex workgroup scanner offers substantially faster speeds than its predecessors, possessing duplex and color capabilities of up to 25 pages per minute, boosting efficiency for your business's decentralized and low-volume scanning efforts... |
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Fujitsu ScanSnap S510 Sheet-fed Scanner
Sale Price: $1,099.99 |
DescriptionThe Fujitsu ScanSnap S510 scanner has all the advanced yet easy-to-use one-touch features that made its predecessor the perfect scanning companion for home and office professionals. Now, with the addition of Adobe Acrobat 8... |
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HP Officejet Pro L7780 Color All-in-One Printer/Fax/Scanner/Copier (C8192A#ABA)
Sale Price: $1,299.99 |
DescriptionAmazon.com Product Description The HP Officejet Pro L7780 Wireless Multifunction Color Inkjet Printer is designed to help your office reach new heights of efficiency and productivity by offering built-in wireless networking, color scanning, faxing, and outstanding copy and print quality speeds of up to 35 ppm... |
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Pentax K10D 10.2MP Digital SLR Camera with Shake Reduction (Body Only)
List Price: |
DescriptionThe PENTAX K10D digital SLR features an array of PENTAX innovations including 10.2 effective megapixels and a PENTAX-developed Shake Reduction (SR) system that effectively offers a 2.5 to 4 stop advantage for sharp, blur-free images even under difficult shooting conditions, such as macro and telephoto photography or low light settings without a flash... |
Battle of the video sensors â CMOS vs CCD
The image sensor is the camera component which captures light and begins the process of turning it into a digital image. There are two types of security camera sensors: CCD (charge coupled device) and CMOS (complementary metal oxide semiconductor). Which of the two you choose depends on your application.
First a little background on each technology.
Wtih a CCD sensor, every individual pixel’s charge is transferred through an output node, which is then converted into an electrical signal. The signal is then buffered and sent as an analog signal. Because of the pixels can be devoted to light capture, and the image quality is usually pretty high.
With a CMOS sensor, every individual pixel performs its own charge-to-voltage conversion, and the sensor also performs amplification and noise-correction. The sensor also includes digitization circuits which allow the chip to output information in a digital format. Because of the complexity of this design, the area devoted to light capture is reduced. And because each pixel must perform its own conversion, uniformity (thus image quality) is lower.
The production cost for both types of sensors are similar, but CMOS sensors sometimes require additional support chips to optimize image quality. CMOS sensors are great for devices that require speed and low power consumption, while CCD sensors excel in image quality and low light performance.
While both CMOS and CCD sensors have matured a great deal in recent years, when it comes to security cameras, I prefer CCD for outdoor applications and CMOS for indoor IP camera functions. Let me explain why.
In the still camera world, CCD and CMOS are almost at par in terms of performance. In fact, CMOS sensors are attractive in this space because of their much lower power requirements - an important feature for devices which run on batteries. In the security camera world, I find that CCD sensors outperform their CMOS counterparts in several key metrics.
The first and most important is light sensitivity. If you need a security camera with superior night vision capabilities, CCD is the way to go. The CMOS cameras I have tested, with or without IR illumination, were almost completely blind in the dark. Cameras with CCD sensors are very capable in low light applications, and are terrific when coupled with infrared illumination. If you need to record in low light situations, CCD is the way to go – do not even consider CMOS.
The second factor to consider is image quality. In the security camera world, while both technologies are getting closer, CCD still has the edge when it comes to image quality. This is because CCD sensors exhibit less image noise than their CMOS counterparts.
So why would one consider purchasing a security camera with a CMOS sensor? Mainly because these sensors are more prevalent in IP Security Cameras - that is, cameras that are equipped with built in web servers and communicate using the IP protocol over CAT5 cabling. These cameras tend to be very affordable and are great for indoor applications that require web based video streaming.
In conclusion, CCD sensors are the way to go for outdoor applications, low light scenarios or when a higher quality image is required. CMOS sensor based cameras should only be considered for indoor applications with decent lighting conditions.
About the Author
Andy J Thompson is a freelance CCTV specialist from Canada.
His blog can be found at http://www.securitycameratutor.com
Button/Screw/Pinhole Camera Set