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Personal suggestions and opinions for your reference: Digital cameras are generally divided into card cameras, telephoto cameras, and DSLR digital cameras. Card digital camera is divided into a card machine with a periscope lens and a card machine with a telescopic lens, the body of the former is more delicate and small and fashionable, but the imaging effect is slightly inferior to the latter, both models are smaller in size, easy to carry, and the general household is completely competent.
Telephoto digital cameras all use high-magnification optical zoom, generally more than 10 times, the focal length covers a large area, you can basically go all over the world in one shot, comprehensive manual shooting function, you can integrate more into the effect you want when shooting, the fun and space of shooting will be greater, but the volume is relatively large. The imaging effect of the above digital cameras can meet the needs of ordinary households, but basically the lens cannot be replaced. The biggest advantage of DSLR digital cameras:
Because the size of the photosensitive chip is much larger than that of consumer-grade card machine and telephoto machine, the final imaging effect is incomparable with consumer-grade card and telephoto machine digital cameras, depending on the shooting environment, object, etc., you can replace the corresponding lens to get a more perfect photo, high-speed shutter, high-speed continuous shooting and very small shutter time lag, you can capture and not miss the wonderful moment of high-speed moving objects, and the practical high ISO can bring the quality of photos taken at the bottom illumination is also of practical value, but the fuselage**, In particular, lenses of various sizes** are expensive. What's more: buying a camera is the same as buying a computer, and the one that suits you is the best.
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Card cameras and telephoto lenses are vague concepts, and cameras with very thin thickness are called card cameras, and lenses with an equivalent focal length of more than 100mm can be called telephoto lenses or telephoto lenses. The most striking feature of a DSLR camera is that it has an interchangeable lens and uses the camera's optical viewfinder for framing. ]
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The imaging principle, the SLR is more advanced, the SLR is the light obtained by the lens is reflected through the mirror, and the pentaprism refraction is directly displayed in the viewfinder in real time. Moreover, the area of the image sensor is several times that of ordinary digital cameras, and its shooting is completely real-time, and the image quality and color also occupy a greater advantage than ordinary cameras, even if the pixels of the card machine are the same as those of the SLR. SLR can perfectly meet various uses by changing the lens, the card machine is a fixed lens, and most of the manual support functions of the card machine are not strong, there is no photographic fun, and the point-and-shoot machine is the same.
Ordinary digital cameras obtain light through the lens and directly shine on the image sensor, which is displayed on the LCD viewfinder after computer processing, and there is a certain time lag, and the image sensor area is small, and the image quality and color can not be compared with the SLR. Except for the use of a lens with a longer focal length, telephoto is essentially no different from a card player. ]
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Digital cameras are divided into: card machine, telephoto card machine, SLR camera card machine is generally the most common kind of small camera, **between a few hundred and 2500, not professional, but for the general household is enough to use a single-lens reflex camera, you can replace the lens, the photosensitive area is large, the imaging is clear, if you buy it, it is divided into two parts: the body and the lens, **in 4000 yuan to tens of thousands of hundreds of thousands of telephoto card machine imaging and card machine are the same, but the focal length is long, can shoot farther scenery,** In the range of more than 1000 to more than 3000, the telephoto camera is not cost-effective, and it is generally not recommended to buy].
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According to the most commonly used uses of digital cameras, they can be simply divided into: SLR cameras, card cameras, telephoto cameras and home cameras.
A single-lens reflex digital camera refers to a single-lens reflex digital camera, which is the abbreviation DSLR for Digital Digital, Single Single, Lens Lens, and Reflex Reflective. At present, the common DSLR digital camera brands on the market are: Nikon, Canon, Pentax, Fujifilm, etc.
How it works: There is no clear concept of card cameras in the industry, but those small form factors, relatively light bodies, and ultra-thin and sleek designs are the main criteria for measuring these digital cameras. Among them, Sony T series, Olympus AZ1Casio Z-series and ixus105, among others, should be classified in this area.
A telephoto digital camera is a digital camera that has a telephoto lens. The focal length of a lens is generally expressed in millimeters, such as a 35mm lens, a 50mm header, a 135mm lens, and so on. According to its focal length, the lens can be divided into wide-angle lens, standard lens and telephoto lens, etc., in fact, this is based on the angle of view of the lens.
In 35mm film, the angle of view of the 50mm lens is equivalent to the angle of view of the human eye, which means that the magnification is one, which we call the header.
None of the DSLRs can use film.
There is really no one below 3000, Nikon D3000 - SLR entry weapon is almost 3600
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Tateyeats is very comprehensive, add a few:
Cameras are divided into single-lens reflex cameras, rangefinder cameras, and dual-mirror cameras according to the form of framing, and card cameras and single electric cameras have been added in today's digital age. The framing of the card machine is generally carried out through the LCD screen on the back.
Telephoto, header and wide-angle are for lenses, with telephoto generally referring to lenses with an equivalent focal length of more than 100mm, wide-angle lenses referring to lenses with an equivalent focal length of less than 28mm, and fisheye lenses referring to lenses with an equivalent focal length of less than 14mm.
Now the card machine also has a large zoom lens, that is, the so-called card machine that goes all over the world, the zoom ratio is more than 7 times, some are 15 times, the wide-angle end is generally 28mm, the best is 24mm, the telephoto end is generally 200mm, and even to 300mm, you can go to "hit the bird".
SLR is a form of framing, and it has nothing to do with film. In the film era, 135 SLR machines were rampant all over the world, and Nimejia (Nikon, Canon, Minolta) was the three major brands we were familiar with, but the top SLR machine was the 120 SLR machine Hasselblad and the like. In the digital age, Nimeja became Canon, Nikon, and Sony.
It's just that now the development of the film is very problematic.
The digital SLR camera below 3000 is estimated to be only Sony's A330, which is about 3000 yuan. Other Sony A290s are also a little over 3000.
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Well,Needless to say, it's so troublesome for a few people upstairs.,It's the same as being professional.。。。
A DSLR is a camera that looks relatively large and can be replaced.
Half of the card machine refers to an ordinary digital camera.
The telephoto is worth a medium size and cannot be changed, but a camera with a very long focal length means that it can shoot far away ,,-
Generally, SLR cannot use film, and now the SLR is a single-lens reflex digital camera, which is digital, and only film SLR cameras can use film.
For low-priced SLRs, we recommend you to take a look at the Nikon D3100, Canon 1100D, Pentax KX, Panasonic GH1
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The camera is mainly divided into SLR, card, SLR refers to single-lens reflex, Canon's SLR is very good, sales are very good, Canon EOS60D is recommended, high configuration, clear imaging, cost-effective, is a new mid-level nirvana product of Canon. In addition, the compact and lightweight nature of the 60D plastic body also reduces the burden on users when carrying the camera when going out.
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Don't you know that the current DSLR mechanism follows the design of the SLR in the film machine period? SLR cameras have been around for decades, and SLRs are just a way to frame things, not digital.
In addition, the magnification is not 1 for the 50mm lens as you said, which is.
Magnification refers to the proportion of the size of the scene imaged in the focal plane, for example, a 5 mm long line is also 5mm in the focal plane, so the magnification is 1:1
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The line between a card player and a telephoto machine is blurred. Place.
As the name suggests, the card camera is thin and light, and the general lens does not protrude from the body, and some of them are stretched out when taking pictures. The imaging components of this kind of camera, the CCD and the image processor, are relatively inexpensive because of the limitation of their own size. At the same time, because the lens has to be retracted into the body, the lens aperture is small, the lens group is relatively simple, and the imaging is relatively poor.
But the essence of the card machine is to exchange lightness for performance, isn't it? It's best to be able to do both, but when you can't, you need to make trade-offs.
Telephoto cameras are actually a pseudo-concept, because you can't find the line between telephoto and non-telephoto at all. Even if he reluctantly cites extreme examples, he can't possibly stand up to the card machine. It's like you can't compare 1 kilogram to 20 meters.
The so-called telephoto machine can actually be called high-end DC together with high-end standard variable DC. Their zoom range is more bi-level, with standard transformers generally at 3x and telephoto machines around 16-30x. This camera has a noticeable lens protruding out of the body, making it difficult to retract even when in standby.
The fuselage has a certain thickness, generally speaking, the thickness is more than 1 cm. The portability is far inferior to that of a card machine, and the CCD (image sensor) and processing chip are mostly the same as those of a card machine, but the lens diameter is larger than that of a card machine. This is also an important difference in the obvious improvement of high-end DC image quality.
There is also no shortage of high-end DCs that are close to DSLRs. For example, Sigma's DP1 and DP2 are more expensive than SLRs, and their portability is better than SLRs.
A single-lens reflex camera, commonly known as a single-lens reflex camera. The principle is to reflect the effects of the lens to the frame through a mirror or pentaprism to achieve a WYSIWYG shooting effect. You know, in that era when there was no electronic technology, what you see is what you get is precious.
SLR cameras have APS, full-frame, and large-medium format, in which the imaging elements increase sequentially and increase in turn. DSLR cameras are better than any high-end DC imaging because their image sensors and image processing chips are better configured than the so-called high-end DCs. At the same time, DSLR cameras can be equipped with high-performance lenses to achieve the best shooting results in different environments.
However, DSLRs have their problems. One is the issue of changing lenses. The second is that the fuselage is large and heavy, so it is not suitable to be carried.
You can stuff a card machine into your pants bag, but you don't want to stuff your DSLR into a handbag, especially with a high-end device like the Canon 5D.
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Differences: 1. There is no clear concept of card cameras in the industry, which only refers to the small shape, relatively light body and ultra-thin and fashionable design are the main criteria for measuring such digital cameras;
2. The general focal length between 55mm and 200mm is telephoto, and more than 200mm is super telephoto, of course, there are also telephoto lenses above 100, and there is no unified fixed standard;
3. The digital single-lens reflex camera is a digital camera that uses the new technology of single-lens reflex to install a pentaprism above the ground glass in the camera, and is placed in front of the film plane at an angle of 45 °, this prism reflects the real image light many times to change the optical path, and sends the image to the eyepiece, so that the image seen in the viewing window is always the same as on the film, and the framing range is basically the same as the actual shooting range. The unique design of this prism allows the photographer to observe the image through the lens directly from the viewfinder;
4. The CMOS of the card camera and the telephoto camera are about the same, so the image quality is about the same, and the main difference is the zoom factor.
The CMOS of the SLR is much larger, so the picture quality is good-looking;
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There is no such comparison.
1. There is no clear concept of card cameras in the industry, and it only refers to those small shapes, relatively light bodies, and ultra-thin and fashionable designs that are the main criteria for measuring such digital cameras.
2. The general focal length between 55mm and 200mm is telephoto, and more than 200mm is super telephoto, of course, there are also telephoto lenses above 100, and there is no unified fixed standard;
3. The digital single-lens reflex camera is a digital camera that uses the new technology of single-lens reflex to install a pentaprism above the ground glass in the camera, and is placed in front of the film plane at an angle of 45 °, this prism reflects the real image light many times to change the optical path, and sends the image to the eyepiece, so that the image seen in the viewing window is always the same as on the film, and the framing range is basically the same as the actual shooting range. The unique design of this prism allows the photographer to observe the image through the lens directly from the viewfinder;
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The most important parameter of the camera is the size of the CMOS (image sensor), the card camera is about the same size as the CMOS of the telephoto camera, so the image quality is about the same, and the main difference is the zoom factor.
The CMOS of the SLR is much larger, so the picture quality is good-looking;
Summary: Image quality has a lot to do with the area of the sensor, not the pixels.
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Card machine: Literally understood as a super portable camera, the advantage is that it is easy to carry, the function is simple and easy to operate, and most of the products sold on the market have reached about 10 million phases. And ** generally from a few hundred to about 2000 yuan, divided into telescopic lens and periscope lens.
SLR camera: It is a single-lens interchangeable lens reflex camera, in principle, it is: scene light = >> Gather through the lens = >> Control the amount of light in the internal aperture of the lens = >> 45-degree reflector = >> Pentaprism refracts light and finally takes the framing window = >> The moment the shutter is pressed, the 45-degree mirror pops up = >> The light is sent directly to the CMOS sensor through the lens through the aperture to form an image.
I won't go into detail about the role of shutter and aperture).
The advantages of DSLR cameras: the shutter speed and aperture size can be flexibly adjusted, and different lenses can be used to complete different angles of shooting, for example, the ultra-wide-angle fisheye lens can shoot a scene of 180 degrees left and right with the camera as the center. Switching to a telephoto lens allows you to shoot objects farther away.
The high-speed shutter speed can clearly record the images of moving roller coasters, even the water droplets falling from the waterfall, etc. There are many benefits, so the average professional and photography enthusiast is indispensable for DSLR cameras.
As for the telephoto camera you mentioned, I feel that you can just buy a DSLR body equipped with a large zoom lens, and the general Canon longer specification model is 18-135mm
18-200mm
70-200mm
Even 55-250 or higher zoom lenses.
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