Digital Zoom vs Optical Zoom

How many times have you looked through a binocular and felt the urge to capture the splendid view forever? This has been made possible with digital cameras with optical zoom feature. Of late, even mobile phones have incorporated cameras having somewhat the same technology. The market is brimming with camera mobile phones of various brands offering latest and innovative features. One of the most important thing to be taken into consideration while buying a camera mobile phone is the zoom feature and the range capability of the camera that decides the quality of the images. Many a times you would have felt like zooming an image that appeals to you. Magnifying an image is zoom. There are two types of zoom – Optical Zoom and Digital Zoom.

Digital Zoom is a cropping tool that allows you to zero in on a part of the image that you need to expand. The lens does this by way of magnifying what is left inside the frame. Whatever is outside the frame is totally discarded. Then the cropped image goes through a process, whereby new pixels are added to the existing pixels. If you need to expand too much, more pixels needs to be added and thus the image loses clarity and looks flatter.

In the case of digital zoom a portion of the image is expanded to full size and the total image does not come closer and the image quality is also reduced. Usually the image that you see on screen is of better quality than the final image. The area around the portion of the image to be zoomed is cropped and then the rest of the portion is zoomed. This portion will have fewer pixels and since the camera cannot enlarge the pixels to make up for the missing ones, the images taken this way would not have the same clarity as the original one.

Optical zoom is the true form of zoom. With this the clarity and quality of the image remains intact and the full resolution of the camera is used on the zoomed image. The image is brought forward using the optics of the camera. Optical zoom does not reduce the number of pixels used and hence retains the quality of the image. Optical zoom always give sharper images with more resolution than the digital zoom. It physically moves the camera’s lenses and changes the focal length. When the focal length is changed the image appears magnified and fits the full photo frame. Once the zoom position is adjusted you can just click the button and capture the image. Instead of zooming in on an image and blowing it up, optical lens focus on it and magnifies it maintaining the original clarity.

Some of the latest mobile phones are incorporating optical zoom in their cameras, like Nokia N93 and Samsung G800. Finally, if you need not take a print of your photo and just want to send it across via email, digital zoom will do. But if your purpose is to take prints of you images then you should definitely go for a camera with optical zoom. Whatever said and done optical zoom always has an upper hand over the digital zoom.

Toshiba unveiled TG01 Touchscreen Smartphone

You all have already had a peep at the Toshiba TG01 Touchscreen Mobile Phone a few days back. Now it has been officially launched by Toshiba at the Mobile World Congress that was held in Barcelona during 16th and 19th of February. Now the complete specification of this Smartphone is out. The outstanding feature of this phone is its 1GHz Qualcomm QSD8250, which is believed to be two times faster than the standard processors found in windows mobiles. It comes with 256 MB RAM.

This Smartphone has a large high resolution touchscreen display of 4.1” with a resolution of 480 x 800 pixels supporting 262k colours. Toshiba has incorporated its REGZA technology to enhance the display. This technology has been used in Toshiba’s popular TVs. It is a slim phone measuring 129 x 70 x 9.9mm. This mobile phone runs on Windows Mobile 6.1.

The back side of the Toshiba TG01 Windows Smartphone sports a 3.2 megapixel auto focus camera. It also comes equipped with GPS along with support for A-GPS. It has numerous add-on applications. This quad band phone is loaded with HSDPA 7.2 Mbps that enables high speed downloads. Wifi and Bluetooth connectivity enhances the the mobiles usability. Its battery offers a talk time of 5 hours and standby time of 11 days.

This Bluetooth mobile phone is equipped with a multimedia player, web browser and supports push email, that enables you to receive emails as soon they come into your inbox. It has slot for memory cards. The phone is available in two exciting colours – ‘Deep Black’ and ‘Vivid White’. It is quite a handy phone that can easily slide in to your pocket. To make a call and answer a call you just need to shake it. The future of this iPhone contender seems to be bright. Let us wait and watch.

LG KT770 Mobile Phone

The rain played havoc that day. It poured down with all might, unmindful of mankind’s loud protests. It was confused, for some welcomed it with both arms wide, while some shut it out with their black, rude umbrellas. But, it poured down nevertheless, nonchalant. Duncan parked his car at a deserted garage and ran with his hood over his head, to a tiny pub that stood strong amidst the storm. Once inside, the warmth from the many cups of drinks hugged him tight and he made for a table at the far corner. After ordering a drink, he sat looking out the window, when a rather harried woman took the seat opposite him.

He was glancing at her now and then, but after 20 minutes or so, he couldn’t hold his tongue back. ‘Excuse me, do you want help with anything? You look rather worried.’ She ignored him, and Duncan felt mightily snubbed. He cursed himself under his breath and collected his coat and started to get up. ‘I lost my purse. And it had my mobile phone in it.’ said the woman. Duncan, moved on wanting to save himself from further embarrassment. ‘I’m sorry.’ said the woman again. ‘I didn’t mean to be rude.’

‘Listen’ said Duncan taking his seat. ‘If your mobile phone is that dear to you, why don’t you try tracing it back? For instance, where did you last use it?’ ‘It fell down a gutter.’ at this Duncan smothered a chuckle and fell silent. ‘Hey, what’s so funny, Huh?’ asked the woman, now smiling tentatively. Duncan noticed that she had sapphire-blue eyes. ‘Looks like I’ll have to buy a new one.’ ‘Now, THAT is where I’ll pitch in.’ thought Duncan. ‘I can help you an that.’ ‘Really? Okay then. Go on. Lets see what you got.’ said the woman with a trace of sarcasm.

‘The LG KT770 slide mobile phone is what I propose to you to buy. ‘It’s to be launched pretty soon. I’ll give you an account of it’s features. It is a stylish sliding phone with a 2.8 inch display with a 240 x 400 pixel resolution. It measures about 111 x 52 x 16mm which is quite a medium size.’ ‘I can gather that.’ said the woman and Duncan rejoiced at her tone of annoyance. ‘You can use it for browsing and navigating with ease’ went on Duncan.

‘The LG KT770 5 megapixel Camera mobile phone has Wi-Fi, GPS, and also supports 3.5G. The 5 megapixel camera comes with various features. It has smile shot, panoramic function and also facial recognition.’ ‘Did your old phone have such an impressive camera?’ asked Duncan. ‘I suppose not. And do you know the downloading speed?’ questioned the woman twirling a strand of her locks with a finger. ‘Yes I do.’ began Duncan. ‘It is about 7.2Mbps. It has HSDPA and quad-band GSM. The memory of the KT770 is about 1GB or 2GB and you can further expand it to about 16GB with the aid of the microSD card.

The rain outside seemed to have trickled down to an unending drizzle. But neither Duncan nor the woman ventured outside. So engrossed were they, in their conversation. ‘Does the KT770 have infrared?’ inquired the woman. ‘No, there isn’t. But it has Facebook installed in it. And then, there is a Fring client instant messaging and VOIP. There in no FM tuner, but it has a multimedia player though. And, oh, there’s QuickOffice too. Now for the interesting part. This mobile phone features Navigons MobileNavigator 7 software.’ ‘And, what is that?’ questioned the woman who now nursed a new found respect for Duncan. ‘Using this, you can navigate your way if you find yourself lost in a maze of mysterious roads.’

‘Now that looks like quite a good phone to buy.’ commented the woman. ‘Oh, my God!’ she exclaimed. ‘I’m late. Well, thank you sir, for all that information. It was a pleasure talking to you.’ saying this, she gathered her things, put on her mackintosh and rushed out without turning back. Duncan was rather taken aback, for she left him abruptly.

He signaled the waiter and ordered another drink. ‘Who do you suppose that woman was?’ asked Duncan as the waiter returned with his drink. ‘What woman?’ asked the waiter with his brows furrowed. ‘Didn’t you notice? She was sitting right next to me for the last half-an-hour. Tall, brown hair.’ The waiter stared at him, shook his head sideways and said, ‘I don’t know what you are talking about, mister. As far as I could see, you were sitting alone at the table.’ Duncan stared at him, dumb-struck, wondering if he was trying to make a fool of him. ‘You were actually talking to the empty seat in front of you.’

Logic Wireless Logic Bolt Mobile Phone

Mobile world is witnessing enormous changes in technology and with it comes handsets with newer and awe-inspiring features. Initially, touchscreen, WiFi, 3G, GPS, HSDPA, etc seemed to be breathtaking inventions in mobile communications. However, in the present scenario these have become the basic requirements. Now how about a mobile phone with a projector? Logic Wireless has unveiled Logic Wireless Logic Bolt Projector Mobile Phone, that boasts to be the first projector handset.

This Bluetooth projector mobile phone is a GSM device and operates on quad band network. It is loaded with a 3MP camera that enables you to take quality pictures. To connect to other devices you have the built-in Bluetooth technology. This mobile phone uses liquid crystal on silicon and LEDs for illumination. Its unique selling point is its projector that can project a display ranging from 36 inches to 64 inches depending on lighting conditions with a resolution of 640 x 480 pixels.

Logic Wireless Logic Bolt Touchscreen Mobile Phone has an on board storage of 4GB, which is expandable up to 20GB. This seems to be quite useful for business users who can store hours of Power Point presentations and videos to show off in important meetings. It also comes with GPS and internet connection. Its 1800mAH battery supports a talk time of 2 to 3 hrs and standby time of up to 200 to 250 hrs.

This mobile phone is a bar design handset with a 2.4” touchscreen with a resolution of 240 x 320 pixels and measuring 115.6 x 48.6 x 23.3 mm. To interface with PC it has dual USB input. It has a phone book that can store up to 500 entries. The messaging services offered include SMS, MMS and email.

HTC Touch Cruise 09 Mobile Phone

HTC manufactures powerful and innovative handsets that provide you true mobile freedom. The Taiwanese manufacturer is famous for its touch mobile phones. Now they have unveiled yet another sleek and elegant handset - HTC Touch Cruise 09 Touchscreen Mobile Phone. This handset, during its development stage was codenamed ‘Lolita’. It comes with a 2.8” touch sensitive screen with a resolution of 240 x 320 pixels, supporting 65k colours and features handwriting recognition.

This mobile phone is equipped with Windows Mobile 6.1 Professional that enables you to edit files in Excel, Word and Power Point. With this mobile you can carry your office with you. It has all the usual software plus HTC’s unique TouchFLO interface. The USP of the handset is its advanced GPS, you can access navigation on a turn by turn basis. It comes with geo-tagging feature, also called HTC Footprints, that lets you take pictures and then tag your location, add some notes or add a voice memo.

HTC Touch Cruise 09 Camera Mobile Phone is a light weight handset weighing 103 grams and its dimensions are 102 x 54 x 15 mm (H x W x D). You can store your pictures and music tracks with its 256 MB RAM and microSD cards. Inside it has 528 MHz Qualcomm MSM7225 processor and a battery that supports talk time of 6 hrs and standby time of 14 days. This mobile phone is loaded with 3.2 mega pixel auto focus camera. The entertainment features include music player, polyphonic ring tones and games.

This quad band phone comes with GPRS class 10, HSDPA 7.2, HTML & WAP browser and WiFi, all of which together gives you high speed internet access. To connect to other devices you can make use of its Bluetooth 2.0 plus A2DP. The messaging services offered by the phone are push email, MMS, SMS and email. HTC Touch Cruise 09 GPS Mobile Phone is a cool device that will never let you get lost.

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