I recommend you take a look at the Kodak Z812 digital camera
Kodak is the world's leading camera manufacturer. You can be assured of quality, but you need to buy regular products. the chains must have a maintenance guarantee. And for billing, the video can be converted to a special DVD format, and can be played on a home DVD player after burning, I have tried it, and there is no problem. your own functioning and learning.
So let me talk about my own feelings. After searching the Internet for a long time, I felt that the Kodak Z812IS was the most cost-effective and functional, and had a professional appearance. I decided to buy it online. I bought a Kodak Z812IS digital camera last month and it's great! What exactly is great? Let me tell you by category.
3. 12x optical zoom, magnification functionvery powerful ent
4. There is an EVF viewfinder, which can be used without an LCD screen when the sun is too strong; p>
5. It has manual, automatic, professional and other functions;
6. It has a panoramic stitching function that can seamlessly connect two photos; , Famous German brand lens;
8. Optical anti-shake function, high sensitivity ISO1600
9.
I will also tell you about its flaws, but these flaws can also be tolerated, because everything always has pros and cons, but its pros outweigh its cons, which does not make it irresponsible
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The disadvantages are:
1. The macro function is not good, the recent shooting is only 10CM;
2. 1280) when recording *720), which takes up a lot of memory. I'm currently using a 4GB SD card. If I record continuously for more thanan hour, a message indicates that the memory is full. card and use normal resolution (640*480), then it can be used continuously for more than 10 hours;
3. If AA alkaline batteries are used, they are not durable. batteries (rechargeable), which are more durable;
4. The camera itself is a bit big and inconvenient to carry, but this is due to the 12x optical lens, which makes it impossible to shrink the camera body. , this defect is therefore inevitably linked to the function.
You can also check the digital camera buying guide.
First of all, you need to determine the price. Decide what price level you want to purchase, then, based on your price level and the following questions, go online to select the appropriate brand and model, then go directly to the local computer store for it. buy. And once you've decided thatthe camera to buy, do not change it on the fly. Because you know what you chose, but not what the dealer temporarily recommends. Understand that if you listen to the dealer's blandishments, change your mind right then and there and buy the camera they recommend , you will probably find that it is too expensive when you get home, or that the one you bought does not meet your requirements. , or even that the camera you purchased is a problematic model. I advise you not to do this kind of stupidity in hindsight.
1. Determine your own shooting style
Are you the tourist type or are you the photographer type? If it is the first case, it is more appropriate to buy a fully automatic compact camera. All you have to do is turn on the camera and press the shutter button. If it is the latter case, it is better to buy a fully manual mobile phone or onereflex. It mainly depends on your financial resources.
2. Decide on the sensor before choosing a camera
If you buy an SLR, you basically don't need to consider this, because the sensors on an SLR are all high. -final products. Here's a reminder, SLR In the DC domain, there is no difference between CMOS sensitivity and CCD sensitivity. However, in the DC domain, CCD is still the world at the moment. So if you see which DC model uses CMOS sensitivity, it is recommended to ignore it, or at least check the shooting effect, just compare it with CCD camera.
Another parameter of the photosensitive element is the pixel. Here we need to look at the effective pixels. For example, the maximum pixel count of my Kodak P850 is 5.3 million and the effective pixels are 5.1 million, so we should take 5.1 million as a standard. Many unnamed DCsclaim to have 12 million pixels, but if you analyze it carefully you will find that the original image is digitally enlarged via an interpolation algorithm (similar to digital zoom) to artificially enhance it. 6 million or even 3 million, so there is no need to consider its practicality.
The size of the photosensitive element must also be taken into account. There are currently many sizes of photosensitive elements, which can be mainly divided into the following types:
1. 135 full size, that is, the photosensitive element is as large as 'a film 135. Of course, that. is the most expensive.
2. The APS format, the format currently used by most SLRs, is a solution that takes into account both image quality and cost.
The 3.4/3 system, primarily the size used by Olympus cameras, will not be discussed here.
4. Photos elementnsible DC. This is the most confusing part. Currently, there are commonly used sizes such as 2/3 inch, 1/1.7/1.8/2.5/2.7/3.2 inch. From front to back, the size of the photosensitive element becomes successively smaller. For us consumers, when determining pixels, it is best to choose a camera with a large sensor. The larger the sensor, the higher the image purity of the camera (relatively speaking), and whether you should use it at a high ISO. State, when shooting, the large sensor can significantly reduce image noise.
3. Determine what pixels you need
The higher the pixels, the better? the answer is negative! The number of pixels you need depends on what photo you need. Here are common pixel values, which indicate the ideal size for your printed photos:
3 million = 5 x 7 inches; 4 millions = 8 x 10 inches; 5 million = 11 x 14 inches; =16x20 inches; 10 million-12 million =24x36 inches.
The above dimensions were not determined by me, but were written in a book by Scott Kelby, a leading international photography expert. For our home users, we usually only need a five-inch photo, and 3 million is actually enough. But machines with such low pixels are now extinct. Therefore, we don't need to pursue ultra-high pixels. The 10 million pixel models released by manufacturers are just gimmicks. What really needs such high pixels is the poster and advertising industry. In the price bracket, however, the blind pursuit of high pixels only leads to a decline in other indicators.
4. Determine the zoom factor
Someone once said that triple optical zoom is best for cameras.ordinary swimming. There is truth in that. When buying a camera, many people do not consider their actual use and blindly buy a telephoto model. However, when they actually use it, they find that it is not suitable at all, because few people like us who are photography enthusiasts will bring a tripod. when he comes out, or , has a fairly strong iron fist. So, if you often only take souvenir photos from your travels and don't want to spend too much time on photography, a triple zoom camera is your first choice. Telephoto lenses are usually fully manual and are suitable for enthusiasts who are on a budget and want to get into photography. Another thing to mention is that if you shoot a lot of landscapes, it is recommended to consider a wide angle model.
5. The importance of the lens
If a camera emphasizes thatit uses Leica, Carl Zeiss or Schneider lenses and the price is not much different from the camera you initially selected. , then try to choose a good lens. As for which of these three goals is better or worse, that's a matter of opinion, so I won't jump to conclusions. In short, a good lens provides sharp images and high light transmission, which cannot be compared with ordinary no-name lenses.
6. The camera's short film function
I have never recommended that the short film function be included in the purchase of a camera. A camera is used to take photos, just like a cell phone is used to communicate. Having more features is a good thing, but there are many things that dedicated equipment can improve. If you attach great importance to the camera function, I suggest you buy a DV. AOnce you see the effect, you will know that the films produced by DV are incomparable to any DC. DC's short film feature can only be used in an emergency. Just like a cell phone camera, you can never expect its performance to be comparable to a DC. If you insist on the video shooting function of your camera, then I remind you to choose a camera with microphone, because you don't want the videos you take to be stupid, right?
7. The High ISO Trap
Now more and more DCs support ISO1600/3200 or even higher sensitivities. When advertising, they will tell you that the high sensitivity allows you to capture photos with a high shutter speed in dark environments. However, in my humble opinion, the high sensitivity of domestic DC is equivalent to waste, andthis is not practical beyond ISO200. If there is enough light and the sensitivity is increased to take photos, the noise will at least not be terrible. But when you really need high sensitivity, like when taking photos at night, you'll find that the resulting photos are often speckled. This is why so many home digital camera reviews don't include night scene samples when it comes to ISO testing. If you want to shoot at high sensitivities, consider an SLR. Most SLRs can maintain clean output at ISO 800, which our little DC can't match.
8. Pay attention to LCD viewfinder pixels
Many brands emphasize the size of their viewfinders, but avoid viewfinder pixels. I've seen three-inch viewfinders with only 110,000 pixels. It is impossible to judge the quality of the shot based onon this type of screen. For a 2.5-inch LCD screen, you need at least 230,000 pixels to ensure a more realistic rendering. reproduction of the shooting effect.
9. Camera Batteries
Personally, I do not recommend machines that use AA batteries. Cameras that can use AA batteries are very convenient for shooting. For example, if you suddenly run out of battery while shooting, you can simply buy some AA batteries and continue taking a few photos. However, using AA batteries consumes a lot of battery power, which is not environmentally friendly enough. The AA batteries supported by many cameras refer to rechargeable batteries, and their voltage is different from commonly used AA batteries. will not lack power. I was sentenced to death by the camera.
So I always recommend using lithium batteries. Usually,two lithium batteries can meet the shooting needs for a day. If you finish shooting with two lithium batteries and the camera's memory card is not exhausted, or if you finish shooting with two lithium batteries and your day's schedule does not isn't finished yet, then when I haven't said it.
If you buy a model that uses AA batteries, I also recommend that you prepare more rechargeable batteries. This is purely for environmental reasons. In China, not all used dry batteries like mine are sent to recycling points. a lot of people, right? So it's best to prepare as many rechargeable AA batteries as possible, for example eight. When you go out to film fully charged, it will definitely be enough for you to film for a day.
10. Camera Memory Card
The advantage of a digital camera isthat it does not require a film but uses a memory card. So how to choose a memory card? As part of the funds, try to buy some at high speed and avoid buying fakes. High speed refers to writing speed. Don't believe in reading speed. This has nothing to do with our shooting. For example, the SanDisk 2G SD UltraII memory card I use has a write speed of 10M/s, which is very suitable for those of us who like continuous shooting and snapshots. And some 50X or 60X memory card writing speed is only 2M/s or even lower, and it takes a long time to take a single photo (an 8 megapixel camera can use a format High quality JPEG to produce a single image of approximately 3 Mpx). This type of card It is simply not capable of performing tasks such as capturing and continuous shooting.
Of course, II would also like to remind everyone: If funds permit, try to buy as many memory cards as possible. For example, I would choose to buy two 2G cards instead of one 4G card. The reason is entirely for photo security. If you took a 4G photo in one go, but found that the card was broken, what would be your mentality? If you have two 2G cards, at least both won't be broken, right? At least you can always keep half of it. That kind of thing, especially when you're photographing certain scenes that can't be reshot, like your siblings' wedding, they can't afford a photographer for some reason and they want you to take care of it wedding photography. Of course, you said very enthusiastically: “No problem, I’ll take care of it!” Then you still need to prepare a few more memory cards ofsmall capacity and change cards immediately after taking a photo. more annoying, only this way, even if you take a photo. If something goes wrong with the card, you can at least keep most of your photos. If you bet your money on a high capacity card, then just in case (I mean in case, of course, the probability of this happening is very high) this powerful high capacity memory card would be very suitable, then you shouldn't do anything about it. the following year, just wait at home while the bride and groom go crazy and take on the relevant legal responsibilities.
11. Camera Ease of Use
Many card cameras have removed many buttons in order to make the body compact. When you need a function, you may need to enter multiple levels. of directories to do this. Find the parameter item and askwhether this parameter is reasonable? There are surprisingly many buttons on the SLR, allowing the photographer to access the adjustment area with just one click. Even though it should appear as a menu, there will not be a two-level menu. Of course, our requirements for domestic DC are not so high, but I think that a reasonable setting menu must meet at least one condition: it cannot exceed two menu levels.
12. Camera Scene Modes
Basically every camera has a scene mode. If you buy it, this camera will be absolutely perfect. Most people can meet the requirements:
Portraits, night portraits, sports, landscapes, nightscapes, snow scenes, beaches, text, flowers, sunrise/sunset, candles, backlight, etiquette/museums, fireworks and parties. .
13. Can the white balance be adjusted?
Even if you buy a camerareil “point-and-shoot”, try to choose a device that can adjust the white balance. You don't want to take a bluish or red photo in full frame, do you? Unless you're really going for this effect (this is of course a photography skill), most people want the photos they take to be color accurate. We do not need any camera to be able to customize the white balance, but at least the following white balance must be provided for you to choose from:
Daylight, Incandescent, Fluorescent, Cloudy , shadow, sunset.
14. Focusing Methods and Measuring Methods
Fully manual phones must provide at least three focusing methods: multi-point focusing, center-weighted focusing, and single-point focusing. methods: center-weighted metering, multi-spot metering and spot metering. As for the cameras compacts, if there is only one focusing method or one measuring method, it is best not to think about it. Of course, there are almost no machines that use only one method. If you come across one, you may consider buying and collecting it>"
15. Don't believe too much in the anti-shake (of course, it must be a optical anti-shake) or a CCD anti-shake)
This is for telephoto users Many telephoto lenses now support anti-shake I can only assure you. are two stops below the safety shutter, which is light. The image is still stable despite the shaking. This is the opposite of the focal length. For example, the focal length of my Kodak P850 is. of 432 mm, and the safety shutter at this time is 1/432 s (if there is one). In terms of shutter speed), more precisely, my camera has a shutter speed of 1 /500 s with anti-trembly, I can shake slightly. 1/320s, but keep the image intact. Of course I can use a shutter speed of 1/50s at this focal length. Of course, not everyone can do this, so don't think it's foolproof. always necessary. As for the electronic anti-shake function of many low-end machines, just treat it as a decoration and try not to use it
16.
Every user who purchases DC must take two test photos of DeadPixel Test when purchasing, one is a normal photo, used to check the clarity of the camera image, and the other is a completely black photo taken with it. the covered lens, used to test whether there are bad pixels in the photosensitive element in the testing software. If the bad pixels exceed the standard, you should not compromise and resolutely change the machine
17. reminder: Understand the brand's hidden modes before buying.
For example, for my Kodak machine, press and hold the Delete key to go to the About menu, you can see the PC TC SC. count.
The PC is the number of times it has been started. If it's a brand new machine, it should count 1 (because it counts once when you start it). basically equivalent to the number of photos that were taken.
SC is the number of flashes, which means how many times the flash flashed
For a new normal machine, after that. turned on, it will count in addition to PC Except 1, everything else should be 0. Otherwise, be careful as it may have been replaced.
The combination of No. 18 and No. 3 is the genuine product
Packaging, camera body and three serial numbers inside the machine are requiredIt is exactly the same as the original product. If a number doesn't match, it's definitely not authentic.
19. THElicensed products must be accompanied by invoices.
There is no doubt about it. I purchased licensed products at a high price. If there is no invoice, there is no guarantee. What is the difference between this and parallel imports? So don't listen to what merchants say about the price they will offer you without an invoice. Approved merchants will insist on invoicing, which only represents 4 points. Many traders ask for 7 or even 10 extra points, or even 17. points, which may not be possible at all. This isn't something that goes through normal channels, or it's just a deliberate attempt to scam customers.
20. There are gifts when buying a camera
In addition to some original elements of the camera (usually manufacturers provide a battery, charger and data cable), traders generally give away bagsfor cameras, memory cards, LCD protectors, compatible batteries and even a small tripod. If the merchant did not give you these items when purchasing the machine, you can request that they come with it. Of course, if there are really cheap machines and you can be sure that the merchant will offer you the lowest price, you don't need any freebies.
You have quite a few questions, so I'll explain them briefly.
1. The main CPU frequency is the computing speed or computing efficiency of the CPU. Generally speaking, the higher it is the same as the computer is 500 MHz. is better than 1 GHz is good, but it has advantages and disadvantages. One problem that high-frequency processors cannot solve currently is that they consume too much power and generate too much heat, especially some high-end processors such as the OMAP3630 dual fromTexas Instruments. -core and integrated 3D graphics accelerator. 1Ghz CPU, the power consumption is quite amazing, of course, the computing speed is super fast, and it is more powerful than ordinary netbooks.
2. The format of the mobile phone. For example, if we want to receive a certain radio station when we listen to the radio, we must tune to a certain frequency band before we can hear the station. The format of mobile phone is similar, that is, if we want to make a call or answer a call, the mobile phone must support the frequency of this band, like gsm, the general frequency is 800 , 900, 1800 MHz, but the general frequency band of cdma is above 2100 MHz, so gsm mobile phones cannot use cdma frequency band, that is, gsm mobile phones cannot cannot use the 3G network of China Unicom, China Mobile or China Telecom, andCDMA mobile phones naturally cannot use the 3G network of China Unicom, China Mobile or China Telecom. GSM network. However, many mobile phones are now dual-mode, meaning they support both GSM and CDMA networks. Both formats are available.
3. For camera pixels, just consider buying a digital camera, although the photosensitive elements are different (cameras usually use CCD photosensitive elements, which have high sensitivity, but are expensive and large in size. , and are used in mobile phones It is cmos photosensitive element, cheap and small, but cmos can't match the imaging effect of CCD), but the higher the pixels, the better. is the image quality. Nowadays, the cameras of mainstream mobile phonesThe cameras are all 5 million pixels. If you buy them now, they won'tcertainly not obsolete. A 5 million pixel camera on a cell phone is quite sufficient. But if you have the money, buy the iPhone 4. The iPhone 4 is. equipped with a 5 million pixel backlit CMOS lens, which is equivalent to Samsung Or the 12 megapixel main photo effect of these high-end Canon cameras, it is the only mobile phone with a CMOS lens backlit in the world, which is quite high. -END.
4. The resolution of the main screen. For example, the general resolution of Nokia mobile phones is 240*320, which means that each inch of the screen has 240*320 pixels. are, the more delicate the screen will be, the better the display effect will be. For example, the current standard resolution of Motorola's high-end Android phones is generally 800*480. This resolution is currently the best, and no particles can be. seen on the entire screen. The feeling is as clear ase the photo, very good! This resolution is also: the higher the resolution, the more content can be displayed in the limited area of the screen, and the higher the fineness of the screen, the better the screen effect. In a word: the higher the resolution, the better.
5. You can compare the operating system with a computer. For example, we usually use Windows XP or Windows 7 system. The same goes for mobile phones. , such as Nokia Symbian system (the third version system is used for button phones and the fifth version system is used for touch screen mobile phones), Microsoft's Windows mobile phone system, BlackBerry operating system of BlackBerry, Apple's iPhone operating system and the Android system of Google Alliance, these systems Among the five major systems currently common, the kernels of the first three systems are completelyent different. Both the kernels of Apple and Google systems are based on Linux, but the actual operating experience and software compatibility are. also completely different. In other words, the differences between different systems The software between them cannot be installed and is completely incompatible. It is the same as Linux and Windows systems on the computer. The largest smartphone system at present is of course Nokia's Symbian system, the most promising is Google Alliance's Android system, and the most popular is Apple's iPhone operating system.
6. Regarding the battery, in principle, the bigger the better, but now due to the size limitations of lithium batteries, the lithium battery of ordinary mobile phones has a capacity of 1600 mA, which is the safest higher capacity. limit, i.e. batteries above 1600 mA are in dangergereuses. Within this capacity limit, the higher the capacity, the better. As for the 1200 mA battery, if you use a touch screen cell phone, it is definitely not enough. The screen is large and consumes a lot of power. If it is a push-button phone, the 1200mA battery can last for 4 days, which is more than enough.
7. The last two network frequency bands and link types are basically the same as the network standards I mentioned earlier and have similar meanings, but GSM does not belong to The network connection type is the network standard . GPRS and Edge belong to network connection type. In fact, they support different bandwidths. For example, when you surf the Internet at home, the speed of using 1m bandwidth and 10m bandwidth is obviously. different. GPRS is the most basic. The network link has avery low bandwidth. Generally, GMS mobile phones support GPRS, and the speed is generally between 20-50KB. The speed of the edge network is faster and can reach more than 1m, which is very. broadband for mobile phones, of course, the 3G network bandwidth currently supported by CDMA mobile phones is generally around 3m, which is faster. Not much to say about this.
8. Carl Zeiss camera certification is now the best in the world. Carl Zeiss is a German manufacturer and certifier. It is the largest, best and most professional lens and certification manufacturer in the world. It is now the highest. The lenses of high-end Sony digital cameras are almost all certified by Carl Zeiss. As long as the lenses are certified by Carl Zeiss, they are the best and top-notch. ByFor example, with the same 5. million camera, ordinary photo effects are obviously not as good as those taken by Carl Zeiss lenses. The effect is good, you can compare it and see the obvious difference. There are also better lens manufacturers, such as Schneider, also from Germany, which also offers better lenses, but no one can shake the leading position of Carl Zeiss. This is the same as Nokia in the field of mobile phones, so Nokia's mid-range cameras. The high-end mobile phones are all Carl Zeiss certified by Zeiss.
9. Digital zoom means that the lens structure remains unchanged and relies solely on amplified pixels to get closer to the scene. It's completely different from optical zoom, the higher the magnification factor. the magnification factor is high. The worse the quality of the photo, the more pixels arelarger and the blurrier the photo is, so digital zoom makes almost no sense in practice. Due to the limitations of the internal structure of mobile phones, there are hardly any mobile phones with it. optical zoom, so you don't need to worry about it, optical zoom is similar to the principle of a magnifying glass. It uses the telescopic lens to zoom in or out on distant objects without changing image quality. not changed at all. Autofocus means that the moment you press the photo button, the camera automatically focuses on the scene you want to take, so that the photos you take are clear and avoid blur caused with a handshake. Macro photography means that your cell phone or camera can clearly capture the photos you want at the closest distance. For example, if you want to capture words from a book, they mustbe very clear, but usually 2 million. The cameras do not support autofocus and macro, so photos will be very blurry. However, 5-megapixel cameras usually support autofocus and macro, so they can take photos of words in books at a very close distance. cameras The macro distance can reach 3cm, which is very good. Nokia's 5-megapixel camera phones usually have a macro distance of 10cm, which is also very good.
10. You can now ignore the Ngage platform. The Ngage platform is a gaming platform specially developed by Nokia for gaming enthusiasts. It is exactly the same as the computer game console emulator, but ngage.There are currently only about ten cracked games on the Internet, the others being paid. Additionally, Nokia officially announced last year that it would stop developingelopper the ngage gaming platform. In other words, ngage is now basically dead.
11. Light sensor, let me give you an example: For example, I am using Nokia 5800. The 5800 has a better light sensor. The light sensors are all above the screen. strong (such as during the day or under sunlight), the light sensor will automatically increase the brightness of the screen, so that you can read the content on the screen clearly under the sun. When you want to read a novel on your mobile phone. At night, the light sensor automatically adjusts the screen brightness. Automatically reduces the brightness of the mobile phone screen to protect your eyes and save money. The light sensor plays a very important role under the sun, even in direct sunlight. at noon, the screen of a mobile phone equipped with a light sensor can clearly see the above content, for example,my 5800. At night, after turning off the lights, the screen automatically adjusts the brightness to the minimum, saving power. and protects the eyes. This application is very good and efficient, and it also has a good effect on the power saving of the mobile phone.
Okay, I think it's pretty simple and the content is complete. However, there are some typos in some places Haha, I typed in a hurry.