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White balance means no matter jvc gr-dx100ek charger how to change the environment ray still since defined as a function of the white. White balance adjustment function is known as the color temperature compensation, colour temperature is under different temperature display, the unit is the colour of k. Color temperature compensation is to through the digital camera own control system adjustment in the spectrum of red, green, and blue, and the light color of the proportion of partial more color correction of composition, make the color of the pictures off more close to the human visual habit, more perfect. White balance function is almost on market at present one of the functions of digital camera necessary.

The jvc gr-dv3 charger white balance and ambient light, so closely related to start white balance function of flash to limit the use of, or environment light changes will make white balance failure or interfere with the normal white balance. General white balance have DuoZhong mode and adapt to the different scene, such as automatic white balance, tungsten light white balance, fluorescence white balance, indoor white balance, manual white balance, etc.

All digital camera all have white balance function, its through the digital camera jvc gr-dv500u charger the photosensitive components to perceive environment colour temperature, and then through the lens of the camera will enter in the wavelength filtering, automatically adjust the red, green and blue, adjust the relation of color, light with partial to the purpose of the picture color reduction. The automatic white balance technology has more mature, in most cases can meet the needs of the shooting.

The default white balance is digital camera manufacturers in the design of the camera jvc gr-d270u charger, according to the specific source often meet the characteristics of the white balance, number and professional setting. Different manufacturers different digital camera has the default white balance mode are also different.

In reality of shooting, in a single light source is less. We usually is mixed in the light of mixed and disorderly environment to shoot, automatic white balance and default white balance will seem a bit "ambition", at this time will use manual white balance function. jvc gr-d270 charger

Digital SLR camera lens is an important part of digital cameras SAMSUNG SC-D363 Charger, taken when the light will arrive through the lens photographic components, users according to their own needs can be changed for different lens.

The main parts of the lens.

(1) the zoom ring, used to adjust the size of the picture frame,.

(2) the focus ring, used for manual focus mode manual focus.

(3) of the depth of field logo, and help users calculation picture of the depth of field.

(4) the focal length marking, show the user to use when the focal length of the shooting. SAMSUNG SC-D353 Charger

(5), is connected with lens mount of the body in the device, and the contacts used to relay signals.

6 focus switch, used to switch automatic focus mode and manual focus mode. SAMSUNG SB-LSM80 Charger

Lens is also affect digital camera image quality of key factors and its manufacture complex, the quality of different lens price difference is very big also. Contains the spherical lens. ED mirror image quality of the lens aperture big shot higher, and realize the in the bad light environment handheld shooting, fixed-focus camera image quality of usually is higher, FangDou function can effectively weaken when shooting with a shaking of the user. In addition, different focal length lens each have its "useful". In the choose and buy when the lens of the body in the choice according to mount the lens of the match. SAMSUNG SLB-0837 Charger

Photography and digital photography Nikon D7000 charger

From 1826's, at staples shoot scenery outside the window began to calculate case, photography has been has a history of 183 years.

Even from 1839 years of Gail invention silver version of photography, starting with photography also has a history of 170 years.

After such a long time of precipitation, photography Nikon Coolpix S4100 charger technology have basic mature.

Now photography technology has become and its unusual art form of expression. In each tourist attractions in pedestrians or the street, we often can discover photography enthusiasts on the press the shutter. So back to our theme, what is photography?

Photography, is to use the camera to record the image of the process, so was also popular become photography, actually, photography is the object reflects the light to medium of photographic process, what the exposure is digital photography? In fact, just use similar principle of electronic photosensitive Nikon Coolpix S2500 charger components rather than the traditional silver film.

Digital photography of the birth of time is late, if from 1981 SONY developed the first paragraph still count MABIKA electronic camera, only 28 years only history, but the development of Digital photography is very fast, just nine years, is in 1990, was born the world's first Digital SLR camera kodak DCS100. By 2000, when KangTai released the first paragraph 35 mm the global picture Digital SLRS Nikon Coolpix S3100 charger N Digital.

In an environmental portrait picture in the CASIO Exilim EX-S100 Charger shape of two or more people requires considerable technology. Between subject and subject as between subject and environment as interrelated. Physical space between the subject for our understanding of the way work plays an important role. For a close-up of two characters, the characters become the distance between the design elements of discord. The careful selection of camera angles and the orientation of the subject must be closely integrated to the best use of screen space.

The Casio XV-3 charger most common scenario is two people sitting or standing side by side. If two people face to face, then the positive side, the distance between the two characters would seem distant. However, this point can be taken from the side or front of the camera so that people cross to overcome. If you want to create more characters in a portrait, you need to consider factors in the design will be different.

Some have a specific focal length lens is often referred to as "portrait lens." Camera manufacturers call the "standard" portrait lens in the telephoto lens usually means, such as digital SLR camera 135mm lens. Shoulder-length film from scratch with this portrait lens, it will not make people face the distortion. However, if the photographer a little farther away from the place where the subject with a short focal length lens to film, it does not produce deformation. Environment to use telephoto lens shooting portraits, the photographer must stand farther away from the location of the subject and the subject needed to distance themselves as much as possible. Standard lens and wide angle lenses are suitable for portrait shooting environment.Casio NP-L7 charger

DIY LED light jvc gr-dv500u charger bulb transform old man lamp, spend minimal, the effect is very good, and continue to carry on the DIY spirit, spread, use small snail mouth bulb drawn power, transfer to standard miniUSB interface can give ordinary mobile phone batteries.

Now most of the cell phone charger jvc gr-d270u charger is actually a 5V dc output power, so long as can provide stable current power 5V can be to recharge the phone number five, and section 4 nimh battery good electricity is exactly the cell phone battery, to more than 5V should be just right. Checked on the net, does anyone really do this, he is oneself do four batteries power box, and my hand head lamp is four batteries, not just right? So immediately begin, still need a little light bulb snail mouth, then grafted in a root do miniUSB line will do.

The snail mouth posted above references miniUSB line can directly find a miniUSB this data, as long as the can, I use a broken charger jvc gr-d270 charger. Cut open, it after it 2 lines, red is positive, blue is negative, if is, must make clear data which two line is power supply, made a mistake is to be burned cell phones, meanwhile polarity is also must make right, wrong also is very dangerous, don't know is there to prevent phone circuit protection of reverse connect, be careful.

So, after two days of activities, generally a night of electricity is exhaustless head lamp, just the cell phone battery night. I use mobile phones do GPS navigation, had the recharge, the next trip, don't worry, ha ha.

Checked, like someone say this to cell phone charging, blunt discontent, even then, I feel, had this wire, emergency, direct to cell phone power supply is no problem, after all four sections BiRongLiang almost nimh batteries are cell phone batteries 2 times, can be at ease use mobile GPS. jvc gr-dv800u charger

Ready to buy a camera jvc gr-d347u charger, especially second-hand camera, you can start with the appearance of the existing police began to require collision-free body scars, no corrosion phenomenon, no deformation and decorative leather or paint five tilt or off phenomenon. Camera case seams to be tight symmetry, without exception in the rock sound. Camera camera obscura black matte finish requirements.

Detection with electronic metering function or automatic exposure camera, turn the power switch on the light and dark features of different metering, the former indicating needle exposure meter or light emitting diodes, liquid crystal display should respond quickly, which aperture and shutter will automatically make a different size, the pace of change. In general, the brighter the scene being shot, the shorter the time the shutter opens, the smaller the aperture of the hole diameter.

For the jvc gr-d31us charger auto-focus camera (the body will be up for AF words), select different objects near and far, the viewfinder, center alignment of these features, press the shutter should be obvious when the lens back and forth movement. In general, objects to the near focus and press the shutter, the lens retracted inward, contrary to the distant objects in focus, the lens protruding.

Camera lens just like the human eye, the selection should be checked carefully. If the SLR camera, you can remove the camera lens, carefully observed. B door if there is a high-level fool machine, the lens can not be unloaded, you can open the camera back, open the door B, and back from the front of the lens within the lens by transmitted light observation. The lens should be clean and transparent as crystal, mirror clean, no fingerprints, oil performance, scratches, chipping (edge ??cracked lens) and other phenomena, but can not have mold flowers, the lens center of the range should not have bubbles. B door if there is no fool machine, you can for the light source, as the camera as a mirror, then a portrait lens reflex should be more light the better. Light transmittance of the lens is that strong. If you find that the internal edge of the milky white opaque, is an exquisite piece is not the result of grinding lenses, likely to cause vignetting around the image fuzzy. Within the lens is not very clear crystal, as if that had some light, indicating that the quality of the tube wall is not good anti-reflective coating, which causes the screen to form fog.jvc gr-d33us charger

Is the camera jvc gr-hd1 charger lens aperture can be changed in the middle of the pore size of the mechanical device, the shutter is the length of exposure time control device (mechanical or electronic), a combination of both, jointly controlled exposure.

For jvc gz-mg21u charger example, the light is like water, the equivalent of a lens to control the flow direction and flow of a sluice holes. Is a hole the size of the aperture, the shutter is a gate opening time.

Gate opening time is fixed, the smaller the hole, the less the amount of water inflow, whereas the more. When the shutter speed is constant, the appropriate aperture (eg f5.6), exposure of normal, the aperture is too large (eg f2.8), overexposed, photographs (positive after washing, not the film) to shining white one, there is no hierarchy, and even a white one; Aperture too small (eg f11), underexposed, photos, a dark, low-light parts of the loss or no-level image.

Hole size is fixed, the longer the gate opening, the more water flows, whereas the less. Therefore, when the aperture is fixed, the right shutter speed (eg 1 / 250 second), exposure of normal, more full of the shutter (for example, 1 / 60 sec), the longer the exposure, overexposure, the faster shutter speed (eg 1 / 1000 second) under exposure.

Note that, although able to control aperture and shutter exposure, its effect is not equivalent. The smaller the aperture, the higher the concentration of light to reach the film (or CCD) imaging, the easier it is clear imaging, (of course, the aperture is too small, there will be diffraction, but fuzzy) the greater depth of field, the smaller the contrary. So, when you need precise control of depth of field, you can first determine the aperture size, shutter speed and then decide. When shooting moving objects, if the shutter open too long, moving objects in the film (or CCD) of the different parts of the image, pictures are not clear, of course, on the contrary, when the shutter speed is high, move the body on film imaging has no apparent movement, the exposure process has been completed, photos to clear, that is, to move the body frozen in the screen, so when shooting moving body, you can select shutter speeds as fast, and then adjust the aperture, correct exposure. Of course, if you want to move the body in the photo on the left trajectory, enhanced dynamic, you can choose a slow shutter speed.jvc gr-d796 charger

Flash photography is particularly important, proper choice of shutter and aperture, you can better control the light flash and other light than that. As is now widely used in electronic flash flash time is very short, only about a millionth of a second, so when the shutter speed to synchronize (the so-called synchronization, is to make the flash of the time fell on the shutter fully open, close the period before Otherwise, do not flash when the shutter is fully open, or closed, the flash does not make sense, even in the film as part of the exposure, recording failure) after a further period of exposure time and no effects. Therefore, the effect depends on the flash to control the aperture, continuous ambient light (such as night lights in the other) depends on the role of the shutter to control, proper choice of the exposure combinations, can create the perfect artistic effect.jvc gz-mg30u charger

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