Wide-angle digital camera refers to the camera product which lens covers a focal length of 28mm wide-angle.
When purchase a wide-angle digital camera in addition to attention to the camera's overall performance, we also need to focus on the performance of inspection of its lens. Lens distortion is the first factor need us to considered. Generally speaking, wide-angle shooting more prone to distortion, photos taken by different cameras have different degrees of deformation, in general, the more slight distortion the better.
Secondly, we also pay attention to the screen resolution, due to cost constraints, the quality of digital camera's lens often can not be compared with professional SLR lenses, especially the photo-resolution of the edge of may be a significant decrease, but good wide-angle digital camera able control this excellent relatively, the picture looks more sharp.
Then is the ability of anti-glare, due to the large visual angle under 28mm wide-angle, the situation of acklighting or side is vulnerable, if the ability of anti-glare of the camera lens is poor, the ugly spot
will appeared on the photo, there may even be blunt optical phenomena. Of course, purple fringe, dispersion, etc. are also the focus of our study objects.
Related Links: Protax Wide Angle Digital Video Camera DC500T
Monday, January 11, 2010
Thursday, December 24, 2009
Baby Monitor Buying Guider
There are dozens of styles of baby monitors available for purchase at baby products stores. When you're buying a baby monitor, you should look for one that fits your lifestyle and the home in which it will be used. The following suggestions will help you find the perfect baby monitor so that you can keep a closer eye on your baby for safety and peace of mind.
Baby Monitor Range
If you only want to monitor your baby from a few rooms away, or in a small house, almost any baby monitor will do. If you have a large or multi-story home, or you'd like to be able to take the receiver outside to a large yard or detached garage, look for a baby monitor with a longer range, so you can be sure you'll hear baby from far away.
Multi-Room Monitoring
Most baby monitors have one transmitter for the nursery and one or two receivers that let parents listen to baby. If you want transmitters in more than one room, or for more than one child, there are fewer choices. Some parents buy two or more baby monitor systems to monitor different children, but with this option you must choose systems that don't interfere, or you'll only hear annoying electronics screeches. A few baby monitors today have multi-room monitoring options, though.
Baby Monitor Portability
The majority of baby monitor receivers today have at least a belt clip that allows parents to carry the receiver with them around the house. If you want to move the receiver around a lot, check the belt clip or attachment method to be sure it's sturdy enough to withstand daily use. Also check the power source and battery life. Will you need to plug it in constantly? Some new baby monitors have ultra-small receivers on a lanyard or belt-clip for great portability, too.
Interference
If you have close neighbors with children, keep in mind that other families may have baby monitors that use the same channels, meaning that you may hear what happens in other homes, and they may hear you. Cordless phones may also pick up baby monitor sounds. If interference is a concern for you, look for a baby monitor that has added security features or no-interference technology.
Monitoring Sounds, Sights and More
Basic baby monitors let you hear what's happening in baby's room. Modern baby monitors also let you watch baby on video, and even to monitor baby's breathing and movement. video baby monitors are helpful, but you won't want to watch the screen constantly, so be sure the monitor also has good sound. Movement sensors add peace of mind, but the AAP warns that parents may gain a false sense of security from movement monitors. Checking your baby personally is still the safest option.
They are many types of baby monitor on the net, like baby sound monitor, video baby monitor, toy baby monitor, wireless baby monitor, multi-camera baby monitor, 2.4gHz baby monitor, multi-channel baby moniotr.
Baby Monitor Range
If you only want to monitor your baby from a few rooms away, or in a small house, almost any baby monitor will do. If you have a large or multi-story home, or you'd like to be able to take the receiver outside to a large yard or detached garage, look for a baby monitor with a longer range, so you can be sure you'll hear baby from far away.
Multi-Room Monitoring
Most baby monitors have one transmitter for the nursery and one or two receivers that let parents listen to baby. If you want transmitters in more than one room, or for more than one child, there are fewer choices. Some parents buy two or more baby monitor systems to monitor different children, but with this option you must choose systems that don't interfere, or you'll only hear annoying electronics screeches. A few baby monitors today have multi-room monitoring options, though.
Baby Monitor Portability
The majority of baby monitor receivers today have at least a belt clip that allows parents to carry the receiver with them around the house. If you want to move the receiver around a lot, check the belt clip or attachment method to be sure it's sturdy enough to withstand daily use. Also check the power source and battery life. Will you need to plug it in constantly? Some new baby monitors have ultra-small receivers on a lanyard or belt-clip for great portability, too.
Interference
If you have close neighbors with children, keep in mind that other families may have baby monitors that use the same channels, meaning that you may hear what happens in other homes, and they may hear you. Cordless phones may also pick up baby monitor sounds. If interference is a concern for you, look for a baby monitor that has added security features or no-interference technology.
Monitoring Sounds, Sights and More
Basic baby monitors let you hear what's happening in baby's room. Modern baby monitors also let you watch baby on video, and even to monitor baby's breathing and movement. video baby monitors are helpful, but you won't want to watch the screen constantly, so be sure the monitor also has good sound. Movement sensors add peace of mind, but the AAP warns that parents may gain a false sense of security from movement monitors. Checking your baby personally is still the safest option.
They are many types of baby monitor on the net, like baby sound monitor, video baby monitor, toy baby monitor, wireless baby monitor, multi-camera baby monitor, 2.4gHz baby monitor, multi-channel baby moniotr.
Wednesday, December 23, 2009
"World War II" Of Cell Phones
For a long time, IT companies have been trying to enter this market, with the mobile communications development, the current global mobile-PC ratio is approximately 3 to 1, while China mobile phone to the PC ratio is 5 to 1. Huge market for mobile phones, as well as high-speed growth of content industries, master of the mobile phone, is to seize a larger leading to the user's window, "So from the IT industry, breakthrough from the plight, you must enter the mobile phone industry." Communications industry experts, "Communication World" editor Li Gang said.
Traditional IT companies which represents of Apple, Microsoft, have already turned its attention to the handset industry, and has made big success, they become the represents of "new phone" in Beijing. And more "new mobile phone" manufacturers is also determined to break into this market. the "new phone" manufacturers which represented by Google, Intel, which jointly formed the jointly formed the "Open Mobile Alliance" with operators and chip manufacturers, which aims to build a an against base between phone operating system and the "old phone", then at the bottom eroded away the "old phone" territory gradually.
from the scene of IPhone hot-listed , the impact is enormous. If Gpone is not yet available, we can not consider their market, then another non-traditional cell phone manufacturers RIM's BlackBerry can prove all. At present, there were already more than 300 operators, 500 application partners and R IM companies to push BlackBerry service. The number of users of the BlackBerry is still maintained rapid growth momentum, its existing 60000 enterprises with nearly 900 million users, 1 / 3 in the last 12 months are new customers.
If the traditional cell phone manufacturers such as Nokia, Motorola, Sony Ericsson cell phone industry, competition between the First World War, then Apple, Microsoft, Goo gle, RIM and other IT companies represented by mobile phone to launch new force will be the phone's "World War II . " The future of mobile phone companies in the chip, operating systems, application software, mobile phone design and other fields started fighting, but the impact of this war is not only the mobile phone industry, but the entire IT industry.
The 3G era will provide a broader war battlefield for this war. According to market research firm In-Stat recently released study said, with the demise of the second-generation technology, 3G mobile phone sales in the next five years will continue to be strong growth. 2012 global handset sales will reach 165 billion U.S. dollars.
In fact, the traditional cell phone manufacturers have clearly felt the aggressive forces in the momentum of a new cell phone, and also host a roundtable to meet the challenge. Nokia has announced its OVI strategy to enter the mobile online gaming and Internet advertising market. Nokia said that later this year, major markets in Europe will launch its own music store. In addition, Nokia's own gaming service is also available. Motorola will also take 11 billion U.S. dollars in cash reserves as part of the acquisition and development for new products.
"We bet, all things happen on PC will occur in smart phones." Motorola CEO Ed Zander said.
In the speech of Software2007 keynote, Motorola CEO Ed Zander said that a similar feature with the PC would be soon transplanted to cell phones, cell phones will be like the PC into the home and office.
Earlier this year, Intel announced that its researchers have developed the world's first supercomputer-like performance with a programmable processor that delivers 80 cores in a single chip, its size not much larger than a fingernail, while using less electricity than most home appliances. what will happen when A 80-core chips into mobile phones, what the surging power It will bring to mobile phones? Under such a dynamic support, how the mobile phones functions beyond imagination?
Maybe one day you will have such a phone: It can be for watching movies, listening to music, access to the Internet, hanging QQ, MSN, can see PPT, WORD, be able to play CS, World of Warcraft; The phone also has BRAVIA screen, Du Sound and projection effects than the certification, as well as more than 10 million-pixel optical lens; the same time, it can remote control all your home appliances, can replace all of the bank card?? By that time, our lives would be ruled by cell phones, the whole world will be ruled by cell phones.
Traditional IT companies which represents of Apple, Microsoft, have already turned its attention to the handset industry, and has made big success, they become the represents of "new phone" in Beijing. And more "new mobile phone" manufacturers is also determined to break into this market. the "new phone" manufacturers which represented by Google, Intel, which jointly formed the jointly formed the "Open Mobile Alliance" with operators and chip manufacturers, which aims to build a an against base between phone operating system and the "old phone", then at the bottom eroded away the "old phone" territory gradually.
from the scene of IPhone hot-listed , the impact is enormous. If Gpone is not yet available, we can not consider their market, then another non-traditional cell phone manufacturers RIM's BlackBerry can prove all. At present, there were already more than 300 operators, 500 application partners and R IM companies to push BlackBerry service. The number of users of the BlackBerry is still maintained rapid growth momentum, its existing 60000 enterprises with nearly 900 million users, 1 / 3 in the last 12 months are new customers.
If the traditional cell phone manufacturers such as Nokia, Motorola, Sony Ericsson cell phone industry, competition between the First World War, then Apple, Microsoft, Goo gle, RIM and other IT companies represented by mobile phone to launch new force will be the phone's "World War II . " The future of mobile phone companies in the chip, operating systems, application software, mobile phone design and other fields started fighting, but the impact of this war is not only the mobile phone industry, but the entire IT industry.
The 3G era will provide a broader war battlefield for this war. According to market research firm In-Stat recently released study said, with the demise of the second-generation technology, 3G mobile phone sales in the next five years will continue to be strong growth. 2012 global handset sales will reach 165 billion U.S. dollars.
In fact, the traditional cell phone manufacturers have clearly felt the aggressive forces in the momentum of a new cell phone, and also host a roundtable to meet the challenge. Nokia has announced its OVI strategy to enter the mobile online gaming and Internet advertising market. Nokia said that later this year, major markets in Europe will launch its own music store. In addition, Nokia's own gaming service is also available. Motorola will also take 11 billion U.S. dollars in cash reserves as part of the acquisition and development for new products.
"We bet, all things happen on PC will occur in smart phones." Motorola CEO Ed Zander said.
In the speech of Software2007 keynote, Motorola CEO Ed Zander said that a similar feature with the PC would be soon transplanted to cell phones, cell phones will be like the PC into the home and office.
Earlier this year, Intel announced that its researchers have developed the world's first supercomputer-like performance with a programmable processor that delivers 80 cores in a single chip, its size not much larger than a fingernail, while using less electricity than most home appliances. what will happen when A 80-core chips into mobile phones, what the surging power It will bring to mobile phones? Under such a dynamic support, how the mobile phones functions beyond imagination?
Maybe one day you will have such a phone: It can be for watching movies, listening to music, access to the Internet, hanging QQ, MSN, can see PPT, WORD, be able to play CS, World of Warcraft; The phone also has BRAVIA screen, Du Sound and projection effects than the certification, as well as more than 10 million-pixel optical lens; the same time, it can remote control all your home appliances, can replace all of the bank card?? By that time, our lives would be ruled by cell phones, the whole world will be ruled by cell phones.
Tuesday, December 8, 2009
Hand-held Metal Detector and Folding Metal Detector
Folding Metal Detector is a Hand-Held Metal detector mainly for security. It is common use in important places like customs, airport and court. It can generate either an alarm or vibration mode
The application of the folding metal detector at the airport, railway stations, docks, prisons, customs, public security, border security departments, such as security checks, medicine, food, quality business systems; as well as the detection of precious metals (such as gold and silver jewelry factory), as well as important places such as Sports such as security checks.
Hand-held Metal Detector Specifications:
* Detection sensitivity: 70mm(1 yuan RMB detection range): 120mm(the distance of Iron pipe to detect )
* Operation temperature: -10℃ to 50℃
* Current: less than 5mA
* Power supply: 9V fold battery(6F22ND)
* Size: 395mm(operation) 260mm(storage)
* Probe size: Ф134mm
* Weight: 230g(Does not include battery)
The application of the folding metal detector at the airport, railway stations, docks, prisons, customs, public security, border security departments, such as security checks, medicine, food, quality business systems; as well as the detection of precious metals (such as gold and silver jewelry factory), as well as important places such as Sports such as security checks.
Hand-held Metal Detector Specifications:
* Detection sensitivity: 70mm(1 yuan RMB detection range): 120mm(the distance of Iron pipe to detect )
* Operation temperature: -10℃ to 50℃
* Current: less than 5mA
* Power supply: 9V fold battery(6F22ND)
* Size: 395mm(operation) 260mm(storage)
* Probe size: Ф134mm
* Weight: 230g(Does not include battery)
Thursday, May 7, 2009
CANON NB-3L Battery Pack Replacement
NB-3L battery, the long-running series rechargeable battery for CANON camera, have a wide applicability. CANON NB-3L battery could compatible with many models of CANON series cameras, suck as CANON POWERSHOT SD550 , NB-3L battery pack made from reliable and durable battery cells which could provide lasting and stable power, so CANON NB3L replacement battery is a reassuring and economical choice
Capacity 850mAh
Voltage 3.7V (compatible with 3.6V)
Dimension 44.90x32.00x9.00 mm
Net weight 21.50g
http://www.canon-digital-camera-battery.co.uk/batteries/canon-nb-3l.htm
http://www.digital-camera-batteries.org/canon/nb-3l-battery.html
http://digitalcamerabattery.ca/digital-camera-batteries/canon-nb-3l.htm
http://www.usa-batteries.com/digital-camera/canon-nb-3l-battery.htm
Capacity 850mAh
Voltage 3.7V (compatible with 3.6V)
Dimension 44.90x32.00x9.00 mm
Net weight 21.50g
http://www.canon-digital-camera-battery.co.uk/batteries/canon-nb-3l.htm
http://www.digital-camera-batteries.org/canon/nb-3l-battery.html
http://digitalcamerabattery.ca/digital-camera-batteries/canon-nb-3l.htm
http://www.usa-batteries.com/digital-camera/canon-nb-3l-battery.htm
CANON PowerShot SD750 & NB-4L
CANON PowerShot SD750Battery is high-quality replacement battery pack for CANON PowerShot SD750 battery OEM, guaranteed compatible with all cameras equipped with CANON PowerShot SD750 battery.
Chemistry:LI-ION
Voltage:3.7V
Capacity:730mAh
Dimension:40.40 x 35.40 x 5.90 mm
Replacement Battery for Canon PowerShot SD750 has passed strict quality assurance procedures to achieve international standards, it meets or exceeds the original quality of OEM Canon PowerShot SD750 Batteries. 730mAh / 3.7V / Brand New
Buy CANON PowerShot SD750 Battery in below site now enjoy a 30% discount. http://www.canon-digital-camera-battery.co.uk/batteries/canon-powershot-sd750.htm,http://www.digital-camera-batteries.org/canon/powershot-sd750-battery.html,http://digitalcamerabattery.ca/digital-camera-batteries/canon-powershot-sd750.htm,http://www.usa-batteries.com/digital-camera/canon-powershot-sd750-battery.htm
Chemistry:LI-ION
Voltage:3.7V
Capacity:730mAh
Dimension:40.40 x 35.40 x 5.90 mm
Replacement Battery for Canon PowerShot SD750 has passed strict quality assurance procedures to achieve international standards, it meets or exceeds the original quality of OEM Canon PowerShot SD750 Batteries. 730mAh / 3.7V / Brand New
Buy CANON PowerShot SD750 Battery in below site now enjoy a 30% discount. http://www.canon-digital-camera-battery.co.uk/batteries/canon-powershot-sd750.htm,http://www.digital-camera-batteries.org/canon/powershot-sd750-battery.html,http://digitalcamerabattery.ca/digital-camera-batteries/canon-powershot-sd750.htm,http://www.usa-batteries.com/digital-camera/canon-powershot-sd750-battery.htm
Wednesday, May 6, 2009
Olympus MJU 1010 Camera and Li-50B Battery
The latest addition to Olympus’ popular Mju series has it both: potency and style. Equipped with an impressive 7x optical zoom range, users can choose the power they want. The elegant Mju 1010 makes it easy to capture distant subjects in full detail, and incorporates an extra large 6.9cm / 2.7” HyperCrystal LCD. Topped off with features such as Dual Image Stabilisation and Face Detection Technology, this 10.1 Megapixel model delivers crystal-clear photos even when creating poster-size prints. The stylish Olympus Mju 1010, which comes in a sleek body in a choice of Starry Silver, Midnight Black and Royal Blue, is also sure to go as long as you need it to with an LI-50B rechargeable battery for an increased lifespan of up to 25%.
Olympus Mju 1010 - Features
• 7x optical zoom (37-260mm) for exciting close ups
• 10.1 Megapixels to make poster-size prints
• 6.9cm/2.7" HyperCrystal LCD with extra bright display even in brilliant sunlight
• 23 scene modes for the best results in different situations
• Sleek, metal body in a choice of three colours: Starry Silver, Midnight Black and Royal Blue
• Underwater shooting up to a water pressure equivalent of 40m possible in combination with optional underwater case PT-042
• Avoids blur thanks to Dual Image Stabilisation
• Face Detection Technology for perfectly focused and exposed faces
• Correct exposure of other image areas
• Better low light shooting thanks to BrightCapture Technology
• New in-camera panorama function
• Liven up your memories with movie recording with sound (VGA resolution 30fps)
• TruePic III image processor for faster image handling and higher image quality
• Olympus MJU 1010 battery use a rechargeable lithium battery li-50b
The OLYMPUS LI-50B is a replacement Li-ion rechargeable battery pack for OLYMPUS digital cameras. It has a power rating of 3.7V,770mAh. Our OLYMPUS LI-50B has a battery life of approximately 300-500 times (2-5 years) with no memory effect.
Chemistry Li-ion
Voltage 3.7V
Capacity 770mAh
Dimension 40.3*34.1*6.8 mm
Olympus Mju 1010 - Features
• 7x optical zoom (37-260mm) for exciting close ups
• 10.1 Megapixels to make poster-size prints
• 6.9cm/2.7" HyperCrystal LCD with extra bright display even in brilliant sunlight
• 23 scene modes for the best results in different situations
• Sleek, metal body in a choice of three colours: Starry Silver, Midnight Black and Royal Blue
• Underwater shooting up to a water pressure equivalent of 40m possible in combination with optional underwater case PT-042
• Avoids blur thanks to Dual Image Stabilisation
• Face Detection Technology for perfectly focused and exposed faces
• Correct exposure of other image areas
• Better low light shooting thanks to BrightCapture Technology
• New in-camera panorama function
• Liven up your memories with movie recording with sound (VGA resolution 30fps)
• TruePic III image processor for faster image handling and higher image quality
• Olympus MJU 1010 battery use a rechargeable lithium battery li-50b
The OLYMPUS LI-50B is a replacement Li-ion rechargeable battery pack for OLYMPUS digital cameras. It has a power rating of 3.7V,770mAh. Our OLYMPUS LI-50B has a battery life of approximately 300-500 times (2-5 years) with no memory effect.
Chemistry Li-ion
Voltage 3.7V
Capacity 770mAh
Dimension 40.3*34.1*6.8 mm
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