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Essay代写:Pinhole camera

2018-01-11 | 来源:51due教员组 | 类别:Essay代写范文

下面为大家整理一篇优秀的essay代写范文- Pinhole camera,供大家参考学习,这篇论文讨论了针孔相机。针孔相机是世界上最简陋的相机之一,它仅仅运用小孔成像的技术,没有精密的机械和光学设计,但是这也不能阻碍一些古今中外的优秀作品的问世。人们利用针孔相机拍摄的画面亦真亦幻,仿佛梦中之境,又如脑海中尘封的记忆。

Pinhole camera,针孔相机,英国代写,essay代写,论文代写

Photography as a technical operation is to record the image around the birth. The method of expression in the works created with pinhole camera is to create for the photographic art. This article mainly carries on the thorough research to the pinhole camera operation technique and the effect, has analyzed its behind the intention and the expression technique. From the side of the interpretation of the Lomo effect of the form and the pinhole camera breakthrough in the photographic art of the conditions of the limitations, and found that the Lomo effect can not only be taken from the pinhole camera, but also through the later special effects to create the desired effect.

With the development of TV and other new media, the recording mode of photography is also beginning to mass reproduction, but with the popularization of education, the demand for art and aesthetics has begun to permeate into our life. This has also aroused the interest of many young photographers, from the past history, this type of photographic works of distinctive features, creating a romantic style, and thus with the modern popular art realism photography distinguished.

From a historical point of view, the earliest written record of pinhole imaging is the Chinese philosopher Mozi of the 4th century BC, a whole 2000 years earlier than Europe. In the West Aristotle was recorded in 4 BC. After that, pinhole imaging is no longer valued and gradually becomes an entertainment method.

Pinhole camera can be said to be one of the world's most humble camera, it is only the use of small hole imaging technology, there is no precise mechanical and optical design, but this can not hinder some of the outstanding works in ancient and modern times. Pinhole image photosensitive hole through linear expansion projection to the imaging surface, the edge of the light because through the hole after the distance than the central part of the longer, so the intensity of light attenuation, so the pinhole image Center part of the picture is brighter, around gradually darkened.

Today, people can directly use a digital SLR camera for pinhole photography in the early stage of filming, this can not only avoid the past, through the need for photographic paper solidification image of the trouble, can also use the computer and post-processing software processing to image sharpening, not only get rid of the confusion of blurred image, and retain the influence of the maximum depth of the characteristics.

The use of pinhole camera pictures are also true illusion, as if the dream of the territory, but also the memory of the dust-laden mind. So many photographers are starting to pay attention to this ancient photography again.

In recent years, there have been more and more exquisite images in the exhibition of photography, these fantastic images are made by the most primitive and simplest camera-pinhole camera, and the pinhole camera is simple enough for you to make one yourself.

The method is to open a hole in the middle of your SLR lens lid with a diameter of about 0.25mm, and try to make the pinhole more rounded and smooth. Finally, the small hole with a lighter or candle blackened, so that the edge of the small hole is not reflective, pinhole can be calculated after the camera aperture value, and to shoot, different focal length of the image presented by the effect is also different.

Because the light into the pinhole is very faint, pinhole digital photography is only suitable for outdoor, tripod is required, preferably in a clear weather, usually first aim, try to shoot a JPEG image, playback to correct composition.

The method of expression in the works created with pinhole camera is to create for the photographic art. Pinhole camera's shooting performance is called Lomo effect. Lomo represents a series of low-grade simple cameras, which have emerged since the 1990s, and have now spawned hundreds of models. It gradually developed into Lomo art and appeared in a variety of manifestations, its universal imaging features are: gorgeous color exaggeration, the screen has dark angle, leak and so on.

The core idea of lomo effect art is to pursue the creation of freedom, ignoring the existing rules, it is not only a kind of creative photography, but also a way of life. For many young people, it represents a new way of life, its essence defined as: Powerful, strong, crazy, unique, natural, exciting, sexy. This is also to make the name defined for our lives open and magical.

Lomo effect has a strong vitality, can occupy the forefront of fashion for a long time, in addition to its unique characteristics, another reason is that it represents the life, in simple, repetitive daily life in the excavation of the photographic driving force.

The pinhole camera has an obvious imaging feature that can be photographed day and night without flash, there is no aperture only a simple shutter, imaging quality is not high, surrounded by a clear dark angle, the image of the color distortion but very gorgeous, it is free from the shadow of professional photography, emphasizing the integration with life, so that the art of the participants in the posture of a common person to observe life. This also formed its own characteristics: arbitrary without arrest, want to shoot on the PAT. As long as there can be unexpected effect is a successful lomo works.

Virtual but not true needle Condorcet like a very artistic picture, pinhole imaging is mainly characterized by the dark angle around the picture, so that people focus on the center of the picture, although virtual but not true, but give people with a strong sense of the spirit and impact. Make it stand out in many images. In the contemporary era of perceptual, image is a very influential and expansive media, because the pinhole image is false and unreal, it makes the image more vivid and dynamic sense.

On the other hand, pinhole imaging created a form of work beyond people's imagination, expanding people's feelings, awareness and imagination of the world, making the research of image aesthetics more open and rich.

Artificial transformation of pinhole camera is a creative process, but with the advent of PS, greatly expanded the means of photography, can be in the absence of pinhole camera to complete the lomo effect of the addition, Lomo photography is no longer the aperture and shutter combination of the exposure moment. The behavioral process of Lomo photography is divided into two stages: the first is the camera before the shooting, followed by the computer before post-production.

In PS image processing only You can not imagine, there is nothing you can not do. With the help of Photoshop, the portrait being photographed is pulled large, shrunk, and twisted to achieve easily. Lomo effect is even more, the production of the Lomo effect is also very realistic, in the absence of pinhole camera, you can carry out appropriate post-processing.

With the advent of High-tech software, not only to expand the field of photographic performance, the way of expression is also more free. However, later effects will be used more and more frequently. Relying solely on camera photography will be replaced by a combination of filming and post-production.

Through the later processing, the increase of noise, edge of the blur, gradient and the center of the light, the increase in different effects, in order to achieve the ideal state of lomo effect is closer to a step, but, although can create a pinhole camera different methods of expression, in order to achieve the desired effect of the image to do matting and in many images can stand out, However, the frequent use of computer post-production and participation, will also make portrait photography from the real to unreal.

The appearance of pinhole camera, the technique of shooting has been raised to a new height. This method not only greatly breaks through the conditions of the ordinary scene shooting, but also effectively improves the interest of the film. People can record through the analog shooting of the early pinhole camera, can also be made up through post-production, the initial practice can be expressed through a simple image lens, the self's image theme and Lomo effect of the combination, through the practice of debugging, effectively promote the image quality and authenticity of the performance.

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