Help choose a digital camera with wide-angle function

As for the poster’s questions, I will answer them one by one,

1. I like wide-angle cameras, so the camera recommended by my friends must have a wide-angle function.

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First of all, if converted to the 35mm standard, the lenses of consumer digital cameras currently sold are all wide-angle lenses from 38mm to 24mm. Because we have seen too many 35mm or even 38mm lenses, we don’t call them wide-angle lenses. We generally refer to wide-angle cameras, which usually have a focal length of 28mm or less. There are many such machines, just to mention a few, Sony w170, Canon 860, Ricoh R8, Nikon s600, and many, many more. Almost most of Panasonic's fx series are wide-angle machines. If the poster has sufficient budget, you can ignore Panasonic. We have to admit that Panasonic's wide-angle and telephoto cameras are very distinctive, but their image quality is so-so, especially the noise control that needs to be developed.

2. The optical zoom does not need to be large, but it cannot be too small. Zooms above 4 times are acceptable. If some cameras are more powerful, a 3x zoom is fine, but how far can a 3x zoom be taken?

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From the second question, the author is quite familiar with the impact of the camera's zoom ratio on imaging. Take SLR as an example, a good lens has a magnification of no more than 3. That is an iron rule. What's more, what about a consumer DC whose lens is only the size of a bottle cap? Generally, 3 to 5x optical zoom for home use is enough to meet your requirements. When we take portraits, we use the optimal focal length of 85mm. Such shooting has the smallest degree of perspective distortion... Portraits can achieve relatively good results... The optical zoom is too big. Take the Panasonic telephoto and wide-angle card camera as an example. The 10x optical zoom is indeed eye-catching, but the optical zoom is too big, which is detrimental to lens distortion, field curvature, and glare control. Opting for an optical zoom of 3 to 5 times is a wise choice.

As for what you said about how far you can shoot, it’s not accurate. The camera’s focusing distance is from the closest focusing distance to infinity, and it can shoot to infinity. To put it simply, zooming is to bring objects that are far away from you closer to your eyes... It just makes you feel larger... 3x optical zoom can bring an object about 10m closer to your eyes...

3. Regarding the wide angle, I heard that the images taken by some wide-angle cameras will cause distortion in the surrounding areas. I know that it is impossible for home cameras to be absolutely free of distortion, but how big is this impact? Can it be seen on the computer or after flushing?

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I would like to clarify two concepts, one is lens distortion, and the other is perspective deformation or severely distorted perspective deformation, which we call perspective distortion. Lens distortion is unavoidable in the lens production process. At the wide-angle end, barrel distortion is formed, and at the telephoto end, pincushion distortion is formed. For wide-angle cameras, what we pay most attention to is the wide-angle distortion of the lens... As for perspective distortion, the lens is the same as the human eye. Far away objects appear smaller through the lens, while nearby objects appear larger. These two concepts need to be treated differently. As for lens distortion, especially wide-angle distortion, if you look at something with sharp outlines, such as a hand, a square, or a rectangle, you can tell it with the naked eye, and it only varies in degree. At this point, the Canon 860 is more serious, with wide-angle distortion reaching about 4%, and 2% is an acceptable range.

4. I saw an article saying that it is best to choose a camera that can be set manually. Is the most important thing in manual settings to adjust the aperture size and shutter speed? I mainly like urban photography and natural landscape photography, and I like to capture images of people moving. Should I care about manual or automatic when purchasing?

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Of course, this is the difference between so-called point-and-shoot phones and manual phones. Point-and-shoot phones rely on the programmed automatic exposure mode to customize the aperture size and shutter speed. You cannot set the aperture size during this process. Shutter speed. All you can adjust is the exposure, sensitivity, etc.

This is the advantage of manual phones. It has comprehensive p, m, as files, etc., with shutter priority, aperture priority, and automatic Define the m-stop that simultaneously sets the shutter speed and aperture size. If you cannot customize the shutter aperture in special scenes in p mode, you need to manually block it.

5. The problem of response time. I have used two Canon cameras before (relatively early) and they can be displayed on the screen in a short time after pressing the shutter. Friends who are traveling together use this. For Canon, it takes a long time to display after pressing the button. Do current digital camera brands still have this difference? If the difference is not big, what should we pay attention to in this regard?

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When the autofocus is working, the time from pressing the shutter release button to starting the exposure is called the shutter lag time. The shorter the shutter lag time, the easier it is to apply. Canon's camera costs about 2,000 yuan, which you don't have to consider at all. It's very short.

6. Regarding the battery issue, which one is more practical, lithium battery or AA battery?

AA consumes too much battery. If you use rechargeable batteries, you have to buy a charger, and the batteries are also very expensive.

Lithium batteries can be charged by plugging them into a socket, which is very convenient, but why do you see it said on the Internet that AA batteries are better than lithium batteries?

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AA batteries, cameras generally require the use of nickel metal hydride rechargeable batteries, such as Canon a650, which uses 4 AA batteries for power supply. If it is 2500 mAh four AA batteries, 400 pictures cannot be taken. The problem is, this has better battery life than lithium batteries. If it is two cells, the battery life is weaker than that of lithium batteries.

The advantage of AA batteries is their versatility.

7. My main requirements are wide angle, better image quality, and the price is 1800-2500.

Some brands of cameras are very practical, of good quality, and not expensive, but they are lacking in the layman’s aspect.

Some brands of cameras have very average functions, but are very fashionable and not cheap.

Can you give me some suggestions on brand quality and cost-effectiveness?

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Well, if you require optical zoom of no more than 5 times, comprehensive manual functions, and portability, then the Panasonic fx520 is a very unique machine. You can review it online. Take a look, including lens distortion control and noise control. Compared with other Panasonic cameras, it is still good. The key is the touch screen, as well as full manual functionality.

8. A classmate recommended Panasonic TZ3. I don’t know if anyone has used it. I would like to give you some suggestions.

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I have tried it, and it is still the same. I personally feel that the image is brighter and the noise control is not very good.

9. I still agree with Canon in my heart, but it seems that Canon is not interested in wide-angle machines, and Canon rarely produces wide-angle machines. It is like buying a laptop from IBM, but the configuration and fashion are not as good as others. brand.

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Yes, correct answer. Canon has very few wide-angle cameras. There are not many, and the most popular one currently sold is the Canon 860.

Finally, to summarize, if you can give up the manual function, you can consider the Nikon s600. It is a very cost-effective model, only 2,000 yuan, and the lens distortion, color restoration, and noise control are all very good. balanced. The color reproduction of the Canon 860 is the best among wide-angle cameras, but the wide-angle distortion is a bit serious. In fact, this impact is not very big.

If you require complete manual functions, wide angle, and optical zoom, but not too big, then the Panasonic fx520 is the one

Additional: Ricoh r8 is also okay. Used. I am very satisfied with the 46w pixel screen... the imaging is also okay...

I heard that the Ricoh R8 has a high repair rate? is that so?

Ricoh is more professional after all. . .

Supplement:

Professional? Ricoh is okay...

Repair report? For individual machines... If a large number of them are repaired, Ricoh will not be able to survive.