What to buy digital camera should pay attention to the problem??
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Users questions:If questions, such as how to detect ccd, how to detect whether the dead pixel lcd ... ... In addition, I am listening to the others, testing machine to use the lens cap cover, which is measuring what? ? Look on each topic, thank you.
Experts answer: The most important is the CCD (image sensor) with or without dead pixels, noise test, the followingIn detail: 1. Open the camera, warm 1-2min, use this time to enter the menu, close the date of play reflects function (by default off the new machine, open the estimate is not new), with noise reduction off (default off) closing the image effects (sharpness, contrast, sharpness, saturation, nor are all open untilmal), close the reversal film effects, automatic white balance. And then covered with the lens cover, no lens cover, machines and flat, dark cover, the big thick book firmly in the camera lens cover. If possible, surrounded by a black cloth around the lens. Image format options jepg Fine (fine), whichThe most commonly used. Some automatic machines to automatically open a slow shutter noise reduction, the solution in the second article stresses. 2. Now start the test. Do not zoom. First test light under the lowest iso noise * dead pixel situation. Full manual and some manual would not have said, can be manually changed to the lowest iso. No. Fully automatic machine can not determine the shutter, then instead of using night mode to take a sample for the slowest shutter (now generally iso minimum, but some machines will automatically open the noise reduction); with the Night Portrait mode (block flash) to take a place of 1s Shutter proofs; with autopilot (P file) and turn the flash (, Rest assured. The above tests are light noise * bad points, reflecting the ccd complementary oxide component leakage, short circuit, breakdown, etc., may lead to light noise * dead pixel situation. The so-called light noise * dead pixel is ccd is always over-sensitive abnormal point. Here also it is necessary to test dead pixel dark noise *Situation reflects the ccd element burned, open circuit, and even oil spills, into the gray and so on. Dark noise * dead pixel ccd on the contrary is not always sensitive point. 3. Open the lens cover or remove the material blocking the lens and began testing ccd dark noise * dead pixels. Many people do not test this, I helped many people testStates, found that many of my friends ran into this situation, and sometimes affect the picture quality, but after OZ, regret not cope, so there have to say. Remember: dark noise is likely to be ccd into the gray * oil spills, if your machine is not a new machine. Alignment of your machine with a pure white,Clean white paper. White lighting is better, a small desk lamp with increased light. The automatic white balance to fluorescent, incandescent lamps on the use of incandescent (halogen) white balance and other settings unchanged. Let white full frame (viewfinder), in order not to use the optical zoom are too close to maintain a distance of about 20cm Anti-Only the machinery and hand-blocked light. Full manual machine, use manual, shutter speed gradually taken over from the 1s all white test piece, remember that the key lies in the transition must be exposed for more than 2 files to reflect the situation of white all white (the machine would be wrong to white as for 18% of gray rather than the 0% intensity of!) ReferenceManual meters to adjust the aperture to overexposure more than 2 files (preferably overexposure 3 files) to photograph the white pieces. Gradually increase the shutter speed until the aperture can not meet the overexposure more than 2 files so far. This process can achieve shutter priority with exposure compensation. This test series is estimated that the shutter speed can reach 1 * 60s or so.A (for example fz20), so that flash output power increases more than 2 files, use the shutter priority shooting all white pieces. Can not control the flash power of the machine, forced open the flash and the aperture of 2-3 to open large files, if your machine by default when using the flash has the largest aperture, and it was unexpected. Because flash photoTried it! Short we have a range of full white test piece. No manual machine, you can use exposure compensation in all modes (landscape, portrait, party, beach, etc.) shooting test piece, remember to increase the exposure of more than 2 files. Use night mode shooting would not have increased exposure, and can replace the slowest speedDoor test. 4. Finally is the software to detect these black * white proofs of all. First use acdsee, photoshop software like all white proofs of all open, RP into pieces and then stored back to black (not mixed up). Then test the software DeadpixeltestTest all white all white proofs * RP. First with the default parameter settings 60 * 250, more than 60 is light * dark noise, and remember their coordinates. More than one time for a fixed noise can be, more than three fixed noise within 7 days of purchase must go for Oh. More than 250 for one will definitely go. For thatIn theory, this camera's noise control of the same (the same shooting parameters). 5. By the way, bright LCD test mode. Browse for your LCD with a test passes without any noise in the black film can be seen if the bright spot in the LCD, you can ask for replacement, although not affect photo quality. 6.Stress: making black films do not dc lens cover lens cover must be strict, shelter must be thick, smooth opaque; white films must be exposed over more than 2 files and clean and white; other details are also quite sure I was right clear, we may as well pay more attention to points. On the distinction between mainstream and parallel imports: 1: According to the manufacturer providedEnter the body serial number 8008206027 phone (each is unique) can be discerning. 2: The warranty card and serial number of the camera has. 3: China, DJ insurance card, and have three bags of after-sales service. 4: Simplified Chinese manual. (Do not open over seal) This is the camera I use unitSummed up the experience.
Experts answer: The most important is the CCD (image sensor) with or without dead pixels, noise test, the followingIn detail: 1. Open the camera, warm 1-2min, use this time to enter the menu, close the date of play reflects function (by default off the new machine, open the estimate is not new), with noise reduction off (default off) closing the image effects (sharpness, contrast, sharpness, saturation, nor are all open untilmal), close the reversal film effects, automatic white balance. And then covered with the lens cover, no lens cover, machines and flat, dark cover, the big thick book firmly in the camera lens cover. If possible, surrounded by a black cloth around the lens. Image format options jepg Fine (fine), whichThe most commonly used. Some automatic machines to automatically open a slow shutter noise reduction, the solution in the second article stresses. 2. Now start the test. Do not zoom. First test light under the lowest iso noise * dead pixel situation. Full manual and some manual would not have said, can be manually changed to the lowest iso. No. Fully automatic machine can not determine the shutter, then instead of using night mode to take a sample for the slowest shutter (now generally iso minimum, but some machines will automatically open the noise reduction); with the Night Portrait mode (block flash) to take a place of 1s Shutter proofs; with autopilot (P file) and turn the flash (, Rest assured. The above tests are light noise * bad points, reflecting the ccd complementary oxide component leakage, short circuit, breakdown, etc., may lead to light noise * dead pixel situation. The so-called light noise * dead pixel is ccd is always over-sensitive abnormal point. Here also it is necessary to test dead pixel dark noise *Situation reflects the ccd element burned, open circuit, and even oil spills, into the gray and so on. Dark noise * dead pixel ccd on the contrary is not always sensitive point. 3. Open the lens cover or remove the material blocking the lens and began testing ccd dark noise * dead pixels. Many people do not test this, I helped many people testStates, found that many of my friends ran into this situation, and sometimes affect the picture quality, but after OZ, regret not cope, so there have to say. Remember: dark noise is likely to be ccd into the gray * oil spills, if your machine is not a new machine. Alignment of your machine with a pure white,Clean white paper. White lighting is better, a small desk lamp with increased light. The automatic white balance to fluorescent, incandescent lamps on the use of incandescent (halogen) white balance and other settings unchanged. Let white full frame (viewfinder), in order not to use the optical zoom are too close to maintain a distance of about 20cm Anti-Only the machinery and hand-blocked light. Full manual machine, use manual, shutter speed gradually taken over from the 1s all white test piece, remember that the key lies in the transition must be exposed for more than 2 files to reflect the situation of white all white (the machine would be wrong to white as for 18% of gray rather than the 0% intensity of!) ReferenceManual meters to adjust the aperture to overexposure more than 2 files (preferably overexposure 3 files) to photograph the white pieces. Gradually increase the shutter speed until the aperture can not meet the overexposure more than 2 files so far. This process can achieve shutter priority with exposure compensation. This test series is estimated that the shutter speed can reach 1 * 60s or so.A (for example fz20), so that flash output power increases more than 2 files, use the shutter priority shooting all white pieces. Can not control the flash power of the machine, forced open the flash and the aperture of 2-3 to open large files, if your machine by default when using the flash has the largest aperture, and it was unexpected. Because flash photoTried it! Short we have a range of full white test piece. No manual machine, you can use exposure compensation in all modes (landscape, portrait, party, beach, etc.) shooting test piece, remember to increase the exposure of more than 2 files. Use night mode shooting would not have increased exposure, and can replace the slowest speedDoor test. 4. Finally is the software to detect these black * white proofs of all. First use acdsee, photoshop software like all white proofs of all open, RP into pieces and then stored back to black (not mixed up). Then test the software DeadpixeltestTest all white all white proofs * RP. First with the default parameter settings 60 * 250, more than 60 is light * dark noise, and remember their coordinates. More than one time for a fixed noise can be, more than three fixed noise within 7 days of purchase must go for Oh. More than 250 for one will definitely go. For thatIn theory, this camera's noise control of the same (the same shooting parameters). 5. By the way, bright LCD test mode. Browse for your LCD with a test passes without any noise in the black film can be seen if the bright spot in the LCD, you can ask for replacement, although not affect photo quality. 6.Stress: making black films do not dc lens cover lens cover must be strict, shelter must be thick, smooth opaque; white films must be exposed over more than 2 files and clean and white; other details are also quite sure I was right clear, we may as well pay more attention to points. On the distinction between mainstream and parallel imports: 1: According to the manufacturer providedEnter the body serial number 8008206027 phone (each is unique) can be discerning. 2: The warranty card and serial number of the camera has. 3: China, DJ insurance card, and have three bags of after-sales service. 4: Simplified Chinese manual. (Do not open over seal) This is the camera I use unitSummed up the experience.
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- This information provided by the users.Thanks!
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