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Tuesday 31 May 2011

Telephoto and wide-angle camera digital camera

Digital camera FUJIFILM NP-120 Battery angle from the application object can be divided into consumer digital cameras and SLR DC digital camera (DSLR).

Given the different characteristics of appearance and performance, consumer digital cameras have the card machine. Telephoto machines, wide-angle and other different types. APS digital SLR cameras FUJIFILM NP-140 Battery include two types of frame and full frame.

Refers to the telephoto digital camera FUJIFILM Digital Camera Battery with large optical zoom models, suitable for filming the scene more distant or the photographer does not want to be disturbed by the situation. The longer the focal length is more shallow depth of field, the better the imaginary background of the main highlights. But in terms of overall quality of the lens, the greater zoom range, the worse the image quality the lens; theoretically zoom lens, the more prone to deformation, and there are slow focusing telephoto end, shooting hand-held shake problems. Although most of the telephoto digital camera has image stabilization feature, but the anti-shake ability is limited, generally only 2 to 3 block.

Wide-angle camera FUJIFILM FinePix F480 Battery lens has a focal length is short, wide-angle perspective of the larger end. Wide-angle lens has near the far smaller perspective effect, wide-angle lens with near the far smaller perspective effect, you can make footage vision, produced the magnificent artistic effect, especially for landscape and architecture shooting subjects or in small space shooting.

Digital Image Format

The current storage format commonly used in digital cameras casio Exilim Zoom EX-Z150 charger have RAW format and JPEG format. Early digital cameras also TIFF format, although the image quality TIFF format images, but because of large amount of data stored for a long time, has been basically out of digital camera market.

RAW format is a RAW format digital camera CASIO Exilim EX-S600SR Charger imaging sensor image data is stored directly after the format, which stores the original image encoded data, not compressed, so the image is also referred to as digital film. RAW format required by the "digital darkroom" to the image exposure, gradation curves, white balance, sharpness and other parameters to adjust, to get high-quality photos. RAW favored by professionals, while in the non-compressed and non-destructive format, it is the advantage of small storage capacity, making the storage time and shorten the interval between single shot to improve shooting efficiency.

But the RAW need special software to deal with, in the shooting, digital camera's LCD screen can only be seen as a JPEG preview copy provided, in order to avoid wasting storage space, a copy of the compression ratio, image quality is rather poor. Currently, only very few SLR digital cameras CASIO Exilim EX-S770BE Charger and consumer digital cameras only support the RAW format.

JPEG format, JPEG format is a lossy compression format, that would be lost during the compression part of the original image data, and these data can not be restored.

JPEG is an excellent image quality can provide file compression format. The camera set to JPEG format, it photographs inside the camera through the image processor has finished processing, you can direct a film. JPEG compression ratio of 10:1 to 40:1, usually between the memory card can greatly reduce the space, increasing the number of pictures taken to speed up the rate of photo storage, but also accelerated the speed of continuous shooting, so widely used, is All digital cameras CASIO EX-Z75 Charger are equipped with the storage format.

Monday 30 May 2011

Shooting in low light you need any special equipment

You can use a standard camera canon nb-2l battery equipment when shooting in dim light, but may need some equipment normally not used.

The camera must have manual exposure mode, and allows the door B or T gate to reduce the shutter speed, so as to ensure the shutter open for a long time (usually a few minutes. Or even a few hours.)

Mirror lock feature is helpful, it can effectively place the camera canon hf10 battery shake. Manual or electronic shutter line is necessary. You may find a lot of electronic or automatic camera functions when shooting in dim light can not accurately work, auto exposure and auto focus at this point becomes redundant.

In addition to the camera, it also need a support camera canon bp-808 battery and lens weight of the tripod , a manual or electronic shutter release cable (if your cable release is not time function, then with a second hand of a watch or a stopwatch, which in the calculation of exposure time useful a), a flashlight lets you see the dials on the camera and settings, also need plenty of batteries. If you want to combine with natural light and artificial light to shoot, and that a suitable flash equipment is necessary, the ideal is that it can work away from the machine.

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Sunday 29 May 2011

Digital cameras

The camera Panasonic Lumix DMC-ZR1 Charger shutter is used to control the device, adjust exposure time of different length, shutter speed may obtain the exposure time. The shutter and aperture cooperate can realize imaging of correct exposure.

With seconds to shutter speed, said example 1/60 seconds, 1/125 SEC. The exposure time denominators representing the shorter. Average household consumer camera shutter speed about for a few seconds to 1/2000 seconds between, digital camera PANASONIC Lumix DMC-FZ10 Charger shutter speed SLR in dozens of seconds to a few thousand points of a second, such as Canon digital SLR 450D shutter speed is 30 seconds to 1/40 seconds, and Canon 5D Mark between Ⅱ shutter speed in 30 seconds to 1/8000 seconds in between. SLR digital camera has a long time of free control exposure, i.e. B shutter pressing the shutter button, the shutter will always remain open until loosen the shutter button exposure to end.

Digital camera Panasonic Lumix DMC-FZ20 Charger shutter including mechanical shutter and electronic shutter two parts.

Mechanical shutter a lens shutter and curtain shutter between two kinds of structure. Mirror by several thin metal between the Panasonic DMW-BCF10E Charger shutter, located in the middle of leaves, and aperture similar scenes, so also called leaf shutter; Curtain shutter ChouBu or metal by black glial composed, parallel installation piece shade in front of image sensor, also called focal plane shutter. Curtain shutter has two vertical and lateral movement way.

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Thursday 26 May 2011

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Wednesday 25 May 2011

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Tuesday 24 May 2011

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Thursday 19 May 2011

Shutter lines and the use of remote control

Whether traditional or digital photographer Casio QV-3EX battery, encountered more or less intensity because of the instant the shutter is too large a result of camera shake, skew, resulting in damage to the integrity of picture effect. Shutter can be controlled both on camera in a camera and avoid contact with the camera shake caused by damage to the screen surface, the integrity of photographic accessories.

With traditional cameras Casio QV-EX3 battery, electronic, until the era of digital cameras, the shutter function of a single line also get rid of the image, the direction toward the development of more complex applications. Today's shutter release the shutter is not only starting, it's expanded features include: long photography, using the B gate LOCK function, interval photography, time photography. In particular, need a long exposure and stability in the case of pictures, the shutter line play better. Therefore, the long-term perspective, macro and other aid is used in most cable release. Electronic shutter line not only includes the half press focus, full press to start the dual design, but also the way for further operation by remote control exposure time, exposure compensation, and other settings.

Electronic shutter line is a line of evolution of the shutter attachment, it was also known as "remote." And we say that a wired shutter release remote control, wireless remote control is that the remote control. Since the operation of the shutter by cable distance limitations, other than in the more remote they can not control the camera Casio QV3000-PROPACK battery, so using infrared and wireless technology to produce a remote control, remote control makes it possible. While the shutter release are distance limitations, but it is cheap and without the battery, easy to use, you can shoot side edge viewfinder, you can capture. The wireless remote control to facilitate the Department to conduct covert long-range shooting, so as not to disturb the subject, but the structure must be a good map in advance, otherwise the same as blind shot. You can also use the remote control for interval shooting, this feature is very useful when shooting sunset. Remote control many functions, the need for batteries, the photographer and the subject of plants will also affect the operation if there is occlusion effect. In short, the two each have their own strengths, to be selected according to the specific circumstances of use.

Wednesday 18 May 2011

How to protect your laptop's hard disk drive

Beginning from today, partial and introduce some relevant notebook hp pavilion dv2000t battery repairs and maintenance skills. First was talking about the most core hard disk and laptop battery.

The importance of hard drive the correct use and self-evident, not only can extend the maintenance service life and more hard drive because of lost data from the annoyance and loss.

Avoid vibrations

Vibration is one of the enemy hard drive, strong vibrations will cause abnormal even read the physical damage or head plate. The user to avoid bumping over larger cars, ships using notebook; on In hard disk long time reading and writing data when had better take my laptop hp pavilion dv2037tu battery on smooth desktop; While typing and percussion; attention do not gravity Avoid extrusion hard disk zone, such as single hand picked up the notebook, on your notebook placed clog etc. Of course, notebook strengths is the portable office, some shook inevitable. So can advertent when buy with shockproof function hard disk or equipped with a shock damping cushion etc.

Avoid high temperature and other environments

Avoid long time (more than 12 hours) continuously use notebook; Avoid to be put in the quilt, using a notebook hp pavilion dv2011ea battery on the leg, lest block ventilation. Damp, strong magnetic field, sunshine point-blank environment of the influence of using notebook hard drive is very big. The user to avoid in the bathroom, speakers subwoofer environment of using notebook beside, if cannot avoid, also can use inside short time.

Avoid frequent reading and writing data

Don't long time continuous use notebook hp pavilion dv5000 series battery BT download, don't use laptops do resource servers; Using the Windows XP operating system user, strongly suggest adding to 512MB memory or larger hard drive to reduce the probability of reading and writing. Use Windows Vista operating system user, strongly suggest adding to 1GB memory or larger hard drive to reduce the probability of reading and writing.

Regular papers

System in use after a period of time, the hard drive can produce more documents fragments, thus expediting influence data access speed disk aging. Users can best every two months on a disk arrange, about half a year first system, but also heavy not too often, this to raises system speed is very effective.hp pavilion dv4000 series battery

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Tuesday 17 May 2011

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