This article is purely a discussion of the nature of the use of popular digital cameras to semi-professional areas, such as personal digital imaging studios and so on. With the rapid development of computer technology, the boundaries between popular products and professional products have become increasingly blurred, and are full of transitional products. However, digital cameras are a unique market. The price difference between popular products and professional products is more than 10 times. , Popular products no more than 10,000 yuan, professional products are not less than 100,000 yuan, and the middle few transitional products, which for a personal super player or want to engage in a personal digital video studio friends difficult to choose. The author's preparation for a personal digital video studio during the previous period encountered this problem. Selecting a professional-grade digital camera is too unrealistic. The price of a digital camera exceeds the entire budget of the entire personal digital imaging studio. So the author is A suitable product has been selected in the popular type. The following are the selected factors and some application experience. The reader is reminded that the camera I chose is for personal digital imaging studios. It focuses on lighting photography and is slightly different from home. There are also digital cameras mentioned below. It is impossible for the author to get hands-on research for a while. Some model information comes from various magazines, company websites, and advertising materials. Please forgive if you have any mistakes. Reaffirmed: I am by no means a sought-after, the following views are purely personal opinions.
First, digital camera selection elements 1. Digital camera pixels This is the most important indicator to measure digital cameras, but not the only one. A lot of friends who bought a digital camera will ask: "How many megapixels do digital cameras have?" Here is a reminder: The pixels here are the actual pixels of the CCD in the digital camera instead of the output image pixels, because some Digital cameras use a 1.3-megapixel CCD to output a 1.9-million-pixel image in the camera through some kind of interpolation algorithm. This method has no benefit (more on this later). I think that the minimum number of pixels for semi-professional digital cameras should be no less than 1.2 million, and the output image should not be lower than 1024×960. It is best to reach 2 million pixels, but unfortunately it will have to wait until 1999, the highest number of pixels in the current popular digital cameras is Kodak DC260 1.6 million pixels. The only thing that can be accommodated in this indicator is OLYMPUS C-1000L. He only has megapixels. Because of his excellent performance in other areas, I still put him on the list of candidate models.
In addition to the number of pixels there are many indicators should also be understood, CCD area is also an important indicator that has always been easy to overlook, single from the CCD production process, the smaller the area, the higher the better the integrated, single from the photography point of view, the general popularity The digital camera uses a 1/3-inch CCD. Such a small imaging area requires high-quality and clear images. It places high demands on the camera lens and requires specially designed high-density imaging lenses to achieve high density in a small area. Imaging. Therefore, even if the CCD of the same pixel has to select a CCD with a large area, it is more ensured to obtain high-density, high-definition imaging. 2. Camera lens If you open the digital factor, the camera lens is the primary component of the selected camera. Many photographers see the digital camera's lens is smaller than a one-cent coin. They have been stunned by the fact that it cannot be made into a high-quality image. In fact, there was a misunderstanding because the digital camera's photosensitive element was a CCD and the new digital camera was popularized. The used CCD is generally 2/3, 1/2, 1/3 inch, and the area is much smaller than the conventional 35mm film, so a coin-size lens is enough for the CCD. You can see the size of a coin. The maximum aperture value of the lens reaches f2.8 (equivalent to 35mm camera lens f5.6), which of course is unthinkable for a 35mm conventional camera. But also to say, the bigger the camera lens diameter is, the better, because the large lens is very beneficial to the edge definition of the image. It is a semi-professional photography with a large-diameter, multi-piece, high-quality lens that contains aspherical lenses. Be the first choice. However, popular cameras generally use small lenses in consideration of the selling price. In my candidate models, all of them are considered to be low and high.ナî«èƒ‚嗷å‘笥 岩 残 ç ˜åµ¯ ç ˜åµ¯ 惶 矗 mm mm mm mm lens is a small wide angle? In the traditional concept, the 9mm lens is not super-wide angle. In fact, the same reason as above, because the CCD area is small, the nominal focal length value is also smaller, for comparison, manufacturers often give a corresponding 35mm camera contrast value, such as OLYMPUS C-1400L 9.2-28mm equivalent to 35mm camera 36-110mm lens. There is also an important factor is the zoom range, generally 2 times, 3 times, it is recommended to buy 3 times zoom products, because the popular camera is generally equipped with a 35mm lens, 3 times zoom just above 100mm is more practical.
Some digital cameras introduce 2x digital zoom. Actually, digital zoom is not a new thing. Digital zoom has been achieved 200 times on the camera. However, digital zoom on digital cameras has been rejected by public opinion because it is only the middle of the image. A part of it is enlarged, and then the quality of the image is greatly lost through interpolation. This is something that a friend who used a digital zoom camera should fully understand. What's more, this function is easy to implement on a computer. It is a costly display to put him on a digital camera. Therefore, the semi-professional field takes image quality as a prerequisite, and the digital zoom function can be ignored when selecting a digital camera. For reasons of price, models without this function should be preferred. (To be continued)
First, digital camera selection elements 1. Digital camera pixels This is the most important indicator to measure digital cameras, but not the only one. A lot of friends who bought a digital camera will ask: "How many megapixels do digital cameras have?" Here is a reminder: The pixels here are the actual pixels of the CCD in the digital camera instead of the output image pixels, because some Digital cameras use a 1.3-megapixel CCD to output a 1.9-million-pixel image in the camera through some kind of interpolation algorithm. This method has no benefit (more on this later). I think that the minimum number of pixels for semi-professional digital cameras should be no less than 1.2 million, and the output image should not be lower than 1024×960. It is best to reach 2 million pixels, but unfortunately it will have to wait until 1999, the highest number of pixels in the current popular digital cameras is Kodak DC260 1.6 million pixels. The only thing that can be accommodated in this indicator is OLYMPUS C-1000L. He only has megapixels. Because of his excellent performance in other areas, I still put him on the list of candidate models.
In addition to the number of pixels there are many indicators should also be understood, CCD area is also an important indicator that has always been easy to overlook, single from the CCD production process, the smaller the area, the higher the better the integrated, single from the photography point of view, the general popularity The digital camera uses a 1/3-inch CCD. Such a small imaging area requires high-quality and clear images. It places high demands on the camera lens and requires specially designed high-density imaging lenses to achieve high density in a small area. Imaging. Therefore, even if the CCD of the same pixel has to select a CCD with a large area, it is more ensured to obtain high-density, high-definition imaging. 2. Camera lens If you open the digital factor, the camera lens is the primary component of the selected camera. Many photographers see the digital camera's lens is smaller than a one-cent coin. They have been stunned by the fact that it cannot be made into a high-quality image. In fact, there was a misunderstanding because the digital camera's photosensitive element was a CCD and the new digital camera was popularized. The used CCD is generally 2/3, 1/2, 1/3 inch, and the area is much smaller than the conventional 35mm film, so a coin-size lens is enough for the CCD. You can see the size of a coin. The maximum aperture value of the lens reaches f2.8 (equivalent to 35mm camera lens f5.6), which of course is unthinkable for a 35mm conventional camera. But also to say, the bigger the camera lens diameter is, the better, because the large lens is very beneficial to the edge definition of the image. It is a semi-professional photography with a large-diameter, multi-piece, high-quality lens that contains aspherical lenses. Be the first choice. However, popular cameras generally use small lenses in consideration of the selling price. In my candidate models, all of them are considered to be low and high.ナî«èƒ‚嗷å‘笥 岩 残 ç ˜åµ¯ ç ˜åµ¯ 惶 矗 mm mm mm mm lens is a small wide angle? In the traditional concept, the 9mm lens is not super-wide angle. In fact, the same reason as above, because the CCD area is small, the nominal focal length value is also smaller, for comparison, manufacturers often give a corresponding 35mm camera contrast value, such as OLYMPUS C-1400L 9.2-28mm equivalent to 35mm camera 36-110mm lens. There is also an important factor is the zoom range, generally 2 times, 3 times, it is recommended to buy 3 times zoom products, because the popular camera is generally equipped with a 35mm lens, 3 times zoom just above 100mm is more practical.
Some digital cameras introduce 2x digital zoom. Actually, digital zoom is not a new thing. Digital zoom has been achieved 200 times on the camera. However, digital zoom on digital cameras has been rejected by public opinion because it is only the middle of the image. A part of it is enlarged, and then the quality of the image is greatly lost through interpolation. This is something that a friend who used a digital zoom camera should fully understand. What's more, this function is easy to implement on a computer. It is a costly display to put him on a digital camera. Therefore, the semi-professional field takes image quality as a prerequisite, and the digital zoom function can be ignored when selecting a digital camera. For reasons of price, models without this function should be preferred. (To be continued)
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