Traditional Culture Encyclopedia - Photography major - Choosing the all-around Canon SX 20 is an evaluation for beginners.

Choosing the all-around Canon SX 20 is an evaluation for beginners.

"A good choice for beginners to practice their hands.

"IT 168 evaluation center

For those users who don't just want to use the camera to press the shutter somewhere, it is often the only way to know some basic knowledge of digital photography and then shoot more professional picture effects. In terms of equipment selection, compared with the bulky and high cost of SLR cameras, large zoom consumer cameras are often cheaper and cheaper. Almighty? choose Because these models are not only fully functional, but also highly controllable, they can meet the needs of photography practice.

Canon PowerShot SX20 is (click here to view larger image.

)

PowerShot SX20 IS Canon is the second generation model of Canon series. In addition to maintaining the large zoom USM lens of the previous generation and a complete manual operating system, it also upgraded the effective pixel to1.2000, and added the audio and video shooting function with the highest resolution of 720P. Of course, the advantages of traditional optical anti-shake system and reversible display screen are also inherited one by one.

"Product advantages:

1. With high configuration and good controllability, it is suitable for practicing photography.

2. The comprehensive performance such as response speed and image quality is good.

3. The HD video shooting function is very practical.

"Product disadvantages:

1. The expressive force of picture details is not obviously improved.

"Convenient operation experience

Compared with other products of the same brand, Canon's SX series has distinctive features in product appearance design, with smooth and full grip, which provides richer function buttons than other brand products, making the shooting operation simpler and faster. In addition, the framing method brought by the reversible screen is also more flexible.

The grip of the handle is very strong (click here to see the big picture.

)

The reversible screen brings flexible composition (click here to view the larger image

)

In addition to these features in the fuselage design, the 20x optical zoom lens of PowerShot SX20 IS is actually the most convenient place for the whole product design. The equivalent focal length is at the wide-angle end of 28mm, which can be used to shoot open scenery, architecture and other subjects. By switching to telephoto with the longest equivalent focal length of 560mm, it is very suitable for shooting close-ups of people, flowers and so on. In general use, the full satisfaction of various subjects is the biggest advantage of this camera. The following pictures were taken on the same plane with the wide-angle end and telephoto end of PowerShot SX20, and we can roughly see what a 20x zoom lens means.

PowerShot SX20 is a wide-angle shot.

PowerShot SX20 telephoto shooting is

"Meet you? Major? ask

For beginners of photography, the knowledge that photography needs to know can start with aperture, shutter and sensitivity, and then advanced focus control is needed, and the application of focal length is also very knowledgeable. Of course, these are very basic for professional SLR cameras, but not everyone needs a SLR camera that is still not flexible enough. So, can PowerShot SX20 IS, an advanced consumer model, meet our needs to some extent? Major? Practical requirements.

There are special function buttons for focus selection and exposure compensation (click here to view a larger image

)

The speed control dial makes manual parameter setting and menu adjustment more effective (click here to view larger image

)

There is a scale of lens focal length and equivalent focal length on the lens (click here to view a larger image

)

With a photographer and camera? Communication? In depth, the camera should also be able to better meet the photographer's habits. The custom space provided by Canon PowerShot SX20 IS is much larger than that provided by ordinary consumer cameras, including a function key, a custom shooting mode and a custom menu. Through these settings, you can optimize the content that photographers are used to and often visit, thus improving shooting efficiency.

Shortcut buttons can customize common settings.

Custom menus are common on SLR cameras to meet the demand of quick access.

"Practical HD video shooting.

High-definition video shooting seems to be a door for new digital cameras now? Compulsory elective course? . This function is also an obvious function improvement of PowerShot SX20 compared with the previous model. Of course, from the previous generation of products, Canon has paid great attention to the performance of this function, which is reflected in the appearance and configuration of the product. It's very rare for a model like Canon PowerShot SX20 IS to provide special shooting buttons and dual-channel microphones for video shooting. During shooting, PowerShot SX20 IS can not only perform optical zoom and continuous autofocus, but also perform exposure compensation. Therefore, it is often called. Chicken ribs? This function of Canon PowerShot SX20 IS has been flesh and blood, and its practicability has been improved a lot.

Canon PowerShot SX20 IS supports high-definition video shooting and provides HDMI interface.

The audio of short film shooting can also be adjusted.

Canon PowerShot SX20 provides dual-channel microphone (click here to view larger image

)

"What do higher pixels bring?

Although the effective number of pixels of digital cameras will inevitably increase, a series of changes caused by this will sometimes make people feel at a loss. For ordinary consumers, many times, such a high pixel is not necessary, but for businesses, if I don't launch such a high pixel model, it will be difficult to have an advantage in the market competition. So in the end, round after round of normative competition appeared. So, what does the higher effective pixel of Canon PowerShot SX20 mean? Can you show more details? Let's take a look at the following test image:

The horizontal resolution of Canon PowerShot SX20 is at the telephoto end.

The vertical resolution of Canon PowerShot SX20 is at the telephoto end.

The imaging resolution test can reflect the camera's ability to show the details of the picture. If the resolution is higher, it means that the potential of high pixels can be effectively expressed. From the test results, Canon PowerShot SX20 is indeed more ideal than the previous generation in details, but this improvement is not very important for most shooting needs. For example, taking a portrait sometimes doesn't need the slightest feeling, but taking a landscape most of the time needs the atmosphere of the whole picture. In addition, from a technical point of view, the performance of Canon lens is still worthy of recognition, and it is remarkable in picture dispersion control and sharpness performance.

"Image detail quality

Canon's digital image processor has been upgraded to DIGIC 4. Theoretically, the image quality at high pixels is better. PowerShot SX20 IS does not provide very high sensitivity, and the highest sensitivity that can be set in manual mode is only ISO 1600, which makes little contribution to maintaining image stability in extreme environment. However, from the actual picture quality, PowerShot SX20 is very delicate and true at the sensitivity not higher than ISO 400, but at ISO 800 and above, the overall color level and details of the picture are obviously distorted. The following are pictures taken by Canon PowerShot SX20 IS at various speeds:

"Test sample (1)

Canon PowerShot SX20 with USM lens works relatively quietly when zooming and autofocusing, but the focusing speed has not improved significantly. After all, the lens size is so big. In terms of ensuring the stability of the picture, because the aperture of thIS large zoom lens is not too large and the sensitivity of PowerShot SX20 IS is not too high, so many times we can only rely on IS system to ensure the stability of telephoto shooting. In fact, on cloudy days, the situation is not so satisfactory. The following are some samples taken by PowerShot SX20 IS. Pictures are saved as JPG with the highest quality and the largest size.

"Test sample (2)

In fact, the expressive force of Canon cameras is never lacking, but many times we think that Canon cameras are not good at expressing gorgeous pictures, but they are very natural and soft in expressing people's skin color. If you don't adjust the picture style parameters, the picture style of PowerShot SX20 will still maintain this feature. In addition, although the number of pixels is very high, it is limited by the small size of the image sensor, so PowerShot SX20 IS is still lacking in rich level performance in the picture, and it is prone to the situation that dark details are missing and highlights are white, that is, the tolerance of small digital cameras that we often say is not high enough. The following are some samples taken by PowerShot SX20 IS. Pictures are saved as JPG with the highest quality and the largest size.

"IT 168 assessment center view:

From the function and hardware configuration, Canon PowerShot SX20 is a machine that is very suitable for beginners to contact, and its obvious technical characteristics are omnipotence and controllability. Of course, if it is a regular model at home, this camera is also the best choice. After all, it can cope with activities, travel, portraits and other topics. Compared with other brands of high-pixel, large-zoom models, Canon PowerShot SX20 has obvious advantages of more convenient use and better imaging quality. But the disadvantage may be that there are not many fancy functions and gimmicks.

Canon PowerShot SX20 is (click here to view larger image.

)

Disclaimer: The evaluation content of this article is based on the sample provided by Canon's product public relations company (product number: 8863003050). Our evaluation conclusion is only responsible for the individual who sent the sample, and there is no guarantee that the individual can represent the overall level of the products on the market.