9/04/2011

Benefits of Professional Cameras.

By Dmitry Vasenyov


What is the difference between an amateur camera and a professional one? Currently in the development of photographic equipment there has been a significant leap forward and it is very hard to identify the differences between amateur equipment and a professional one. Buying a camera, every amateur draws attention to the price, at the first place, then the manager tells him briskly about the advantages of this particular camera, but in the end will show where to direct, where to look, where to press and it will be enough for a non-professional. Next he will photograph his friends, girlfriends, etc., without hesitation that the portrait is one of the most difficult photo techniques.

So, the main difference of professional cameras from amateur ones - is a wide choice of settings that help ensure a high quality of photos. It is such features as: the ability to change the lens, shutter speed, frames per second, the length of exposure, manual control of exposure correction, automatic bracketing; now there are cameras with the ability to photograph in HDR mode.

Types of viewfinders.

The viewfinder is destined to target the camera on photographed objects. It shows what will be on the photo in cases when the boundaries of the still are not determined on the diffusing glass (the camera does not have frosted glass or photography is executed not from a tripod).

Viewfinders are framework and optical, which are divided into cross-cutting, mirror and electric.

The most convenient are framework viewfinders: you hold a camera at eye level that contributes to a more habitual reproduction of visual perspective.

This viewfinder consists of two frames: small and big in the format of a negative; they are separated from each other by a distance equal to focal distance of the objective-glass. The framework viewfinder gives a picture in its full size and very comfortable for viewing.

The mirror optical viewfinder consists of two collecting lenses, one of which is smaller, placed vertically, and the second, larger - horizontally at the top of the viewfinder; among them at the angle of 45 degrees to both lenses the mirror is attached that reflects the upward rays passed through a smaller lens. As a result, large lens forms an inverted mirror image of your subject.




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