1. Good goods and their price, the brand and capacity of the stored card, the brand, capacity and fast charge of the charging kit must ask more than. It is best to find various brands to buy in all provinces.
2, first visually visually appearance. It must be noted that the random original LCD protective film should be cleaned, and the film is bonded between the film and the liquid crystal screen, no bubbles and debris. Check if the camera appearance is intact, whether there is crack, battery warehouse and CF card cover can operate normally, the shutter secondary button is obvious, otherwise, the merchant will be exchanged separately.
3, the new camera is first started, it is required to set up a date, language, otherwise it is possible to trigger or use the machine. Dutter zoom lens telescopic lens, listen to the sound of the zoom is normal, see if the lens is intact, clean and purple blue, before and after the optical access window is intact. (The Canon A Series Camera may have a zoom when the Coockee or the telephoto end craft E18 error.)
4. The first principal of the test is the bad point of the CCD, although the chance of the new machine CCD has a bad point.
Use M file, first set up the maximum ISO (400), the maximum bright screen (LS), the maximum aperture (F2.8), then set the fastest shutter speed (1 / 2000s), cover the lens with a book , Photo all black photos. For other shutter files, take a few full black. Change other automatic, portrait, landscape and other models as a few ordinary photos. (In parentheses is an indicator of Canon A75, other cameras can be set according to the actual situation)
Use the merchant's card reader to pass the photo to the computer, check the panoramic and clarity of the normal photo via ACDSee, using the deadpixeltest.exe software to test the CCD bad point. If there is no deadpixeltest software, there is only a photo playback mode, use the zoom lever to enlarge the black photos, move the area one by one, and the visual has a highlight or red point.
Deadpixeltest software can be downloaded online, the operation is simple, find the photo to be detected by browse, open, press TEST test. The detection result in the TYPE type is noise. The DEAD represents a bad point, X, Y represents the coordinate positioning of noise on the screen, and the luminance indicates brightness. The software default brightness is higher than 60 grade is noise, higher than 250 grade is a bad point, the higher the brightness value, the more obvious the CCD bad point.
Since the CCD is more sensitive to the temperature, the summer may be more noise than the winter test, and the test will be more than a time to test the noise than the direct test directly. Therefore, the noise of randomness is normal and does not have to worry too much. Only a fixed (note is a fixed) highlight, dark red point (if necessary, the plurality of photo noise X-axis Y-axis coordinates) may be a CCD bad point.
The word "Result ??? dead pixels / ??? Hot Pixels", if there is no dead pixels without DEAD PIXELS in the full black photo test, then the CCD of this machine should have no bad point!
5. Test yourself thinking about it, often used, such as continuous shooting (pressing the FUNC key to select the drive mode), macro, shooting a sound short film, etc., playback the effect. The initial detection of the camera is basically over.
6. Check whether the charger, nickel-hydrogen battery, and tripod are intact. Check the digital packaging and anti-counterfeiting tag on the inside and outside of the memory card, 800 calls or access (SanDisk is required to be registered as a user to authenticate the authenticity of the CF card, and the new CF card is loaded into the camera, Take the most large (LS) photo detection transmission speed and is smooth.
7. Check if the camera attachment is complete, visually visually appearance, housing, lens, view window, interface, flash, etc. 8, with the merchant agreed to change the machine, pay and open the receipt, go home and carefully study. Pay attention to keep the camera's outer packaging carton, product warranty card (ie certificate, on the body number), the original LCD film is intact, then the official invoice will be issued after the trial is satisfactory, fill in the warranty card, and obtain the national warranty.
9. Authentication method for genuine and fake: Uncover the surface layer of the black anti-counterfeiting label on the camera outside the carton, 16 digits in the transcription, play 800 calls or online query authentication. (The authentication URL of Canon Camera is www.yesno.com.cn / Customer / FAC53 / Canon.htm.)
Why choose Canon A75:
1. Implement DIY spirit in the end. Kodak's dial is not convenient, Sony is too expensive. It turns out that Casio's power-saving and multi-model, Ricoh and Fuji's wide angle, etc., and later discover most of the most attractive and better full manual function and color reduction performance Holding a mentality that can "study hard, every day", I chose Canon A75.
2, pay attention to practical functions and cost performance. My photo doesn't have to have a large A4, and 320W pixels are enough. I am intoxicated in the beauty of nature and humanities, I use A75 to record, I use A75 to practice, if I find that there is a day, I will change better when you have achievements, otherwise it is just this.
Purchase time: September 26, 2004
Purchase place: Chuang Digital (1st Floor, Nanning Xinghu Road, Technical City, a distribution contract)
Buy Price: ¥ 2330 (10 days)
Canon A75 ¥ 1900 SanDisk CF256M ¥ 280
New standard charger and four 1600mAh nickel hydrogen battery sets ¥ 100
Camera bag, Wei Feng 330A tripod, lens paper, LCD film ¥ 50
Primary use:
1. Please read the instructions in the instructions for the attention of the camera, familiar with the names of each component.
2, combined with the camera, please read the instructions carefully and learn the basic skills.
3, mode
Auto: Auto Auto, Portraits, Landscape, Nightscape, High Speed Shutter, Slow Shutter, Special Scene (Plant, Snow, Beach, Fireworks, Diving, Indoor), Auxiliary Splicing, Short Slice.
Manual: P program automatic, TV shutter priority, AV aperture priority, M all manual
Macro: In addition to the landscape and fireworks, it can be used in conjunction with the above modes, close to the flowers, letters, books, etc.
4, indicator information
Above: Green light (ready to shoot or transfer) flash green (start / delivery)
Orange (flash, ready to shoot) flash orange light (vibration warning / flash charging)
Below: Huangguang (macro / manual / automatic focus lock) flashing yellow light (difficult to focus, adjustment should be adjusted)
5, photo size
L (a4), m1 (ordinary photo), M2 (ordinary photo or credit card), S (email accessories transmission image)
Each setting is also very fine, fine, general three options
If you want to participate or print a large phase, you should be set to L or M1 to a very fine format, the file is greater than 1m.
If you want to print a normal photo, it can be set to m1 fine, M1 is general, M2 is very fine, and M2 is fine.
