Phone Cameras

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<< Cameras Index - Phone Cameras

Introduction

Phone cameras are mobile phones with integrated mini-digital photo cameras. These can take still images or
mini video clips which are stored in the phone's internal memory or into a detachable memory card. The first phone cameras was capable of capturing images at very low resolutions, even under 320x240 pixels, today, the minimum resolution can be 640x480 VGA, and can go up till the fabulous resolution of 10 megapixels,
as the end of 2006.

Construction

Because the relatively small sizes of mobile phones, these cameras are usually very small and have limited features and low image quality. They usually have a tiny fixed lens for capturing the image recorded by the
tiny imaging sensor, a small number of camera phones incorporates optical zoom lenses, such the 3x optical
on the Samsung SCH-B600 lens.

A mobile phone still must be light and slim for someone to buy it, because construction reasons, the built-in lenses usually doesn't feature an optical zoom. However, in many phone cameras is implemented a software-based zoom function called digital zoom, though, this digital zoom will fake close-up the subject through interpolation enlargement, resulting a closer subject image but with downgraded quality.

Features

Some phone cameras have the option to record mini video clips, but the recording time is very short, usually
a few seconds or maximum of one minute, the frames per seconds are far under 30 and also the video resolution is usually under 640x480.

The quality and resolution of still images and video clips can be changed through the phone menu. Lowering these resolution and quality settings, the camera will capture a higher number of images and longer video,
but not without a quality sacrifice. The best option is to capture at maximum quality and resolution, and if the camera affords memory upgrade, you can attach a bigger memory card.

Advantages

The advantage of phone cameras is obvious: Almost every person today has its own mobile phone.
Why bother transporting another standalone digital photo camera, when this can already be in a device
you already carry with you every time and everywhere? You can also save the money needed for another camera, and another important advantage is that you can take pictures and clips in almost any circumstances, without being noticed. Cool isn't ? Well, let's look at the drawbacks next...

Disadvantages

Because of the sensor's small size there is always a high level of noise, resulting image artifacts and
therefore lose of detail. They have a reduced dynamic range, and because of its basic optics the image
output is usually incorrect, with many aberrations and unnatural colors, highlight blow-ups, etcetera.

Long time responses make phone cameras improper for using in action shots. Most phone cameras lacks
a flash and frequently many shots are blurred when hand-holding the camera indoors and in low light conditions, this is due to the long exposure which is also automated.

Conclusion

Because it's integrated in the mobile phones which are anyway in our pockets anywhere we go, makes
many persons to adopt this camera because they escape the worry of buying and carrying another separate camera. Phone cameras are adequate for those who wants to record memories inside family group or on
small trips and who will finally view their pictures on computer display. If the camera has a minimum resolution of one megapixels, the pictures can be printed on a maximum 4x6 inch photo paper, still without photographic quality.

Phone cameras are not an option for amateurs photographers who need at least a minimal range of camera options and manual settings, so can express their ideas in a creative way, without technical limits.
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			<< Cameras Index - Phone Cameras Introduction Phone cameras are mobile phones with integrated mini-digital photo cameras. These can take still images or mini video clips which are stored in the phone's internal memory or into a detachable memory card. The first phone cameras was capable of capturing images at very low resolutions, even under 320x240 pixels, today, the minimum resolution can be 640x480 VGA, and can go up till the fabulous resolution of 10 megapixels, as the end of 2006. Construction Because the relatively small sizes of mobile phones, these cameras are usually very small and have limited features and low image quality. They usually have a tiny fixed lens for capturing the image recorded by the tiny imaging sensor, a small number of camera phones incorporates optical zoom lenses, such the 3x optical on the Samsung SCH-B600 lens. A mobile phone still must be light and slim for someone to buy it, because construction reasons, the built-in lenses usually doesn't feature an optical zoom. However, in many phone cameras is implemented a software-based zoom function called digital zoom, though, this digital zoom will fake close-up the subject through interpolation enlargement, resulting a closer subject image but with downgraded quality. Features Some phone cameras have the option to record mini video clips, but the recording time is very short, usually a few seconds or maximum of one minute, the frames per seconds are far under 30 and also the video resolution is usually under 640x480. The quality and resolution of still images and video clips can be changed through the phone menu. Lowering these resolution and quality settings, the camera will capture a higher number of images and longer video, but not without a quality sacrifice. The best option is to capture at maximum quality and resolution, and if the camera affords memory upgrade, you can attach a bigger memory card. Advantages The advantage of phone cameras is obvious: Almost every person today has its own mobile phone. Why bother transporting another standalone digital photo camera, when this can already be in a device you already carry with you every time and everywhere? You can also save the money needed for another camera, and another important advantage is that you can take pictures and clips in almost any circumstances, without being noticed. Cool isn't ? Well, let's look at the drawbacks next... Disadvantages Because of the sensor's small size there is always a high level of noise, resulting image artifacts and therefore lose of detail. They have a reduced dynamic range, and because of its basic optics the image output is usually incorrect, with many aberrations and unnatural colors, highlight blow-ups, etcetera. Long time responses make phone cameras improper for using in action shots. Most phone cameras lacks a flash and frequently many shots are blurred when hand-holding the camera indoors and in low light conditions, this is due to the long exposure which is also automated. Conclusion Because it's integrated in the mobile phones which are anyway in our pockets anywhere we go, makes many persons to adopt this camera because they escape the worry of buying and carrying another separate camera. Phone cameras are adequate for those who wants to record memories inside family group or on small trips and who will finally view their pictures on computer display. If the camera has a minimum resolution of one megapixels, the pictures can be printed on a maximum 4x6 inch photo paper, still without photographic quality. Phone cameras are not an option for amateurs photographers who need at least a minimal range of camera options and manual settings, so can express their ideas in a creative way, without technical limits. _ _



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