Photographing water in motion

To perform almost every person needs professional tools. Occupation photographer is no exception, but not enough in the studio camera, flash, several tripods and computer.We will need more tools and accessories to be used in a variety of specialties. There must be a professional course, large machines such as computer-controlled milling machine, although this would probably be useful sometimes. Every photographer, depending on the course should complete their own set, which should not be missing tapes, veins, plasticine, scissors, pliers, etc., etc. - could be exchanged for a long time.Are also very helpful for multiple mounting accessories manufactured by companies such as Manfrotto or Foba, but without them it can be to deal with. 

I have never concealed that the pictures I make are the result of combining photography with computer processing. I mention this because already at work in the studio we have to think about editing later. For this reason, the implementation of the photographic material for this work was divided into several parts. Is good practice to draw the everything before the session to clarify the expected results and consider what steps to divide the work. Drawing does not need to be beautiful, but should include all the elements to be included in the frame.

First of all - a glass with ice cubes and mint. Its preparation took a long time, even though the peppermint dough was stuck to the bottom so as not to be inferred, and the bones were made of acrylic and the wicked do not leap to the surface. The same paste and position of everything in an attractive manner cost no small effort. If someone come to similar compositions without difficulty and is looking for work, willing to hire him in his studio as a stylist. To facilitate your work, after setting the frame and focus was to determine the necessary background to where the glasses. This allowed it to be discontinued in exactly the same point, whenever there was a need to. After each set, ice and mint zalewaliśmy gently mix them lightly carbonated, so as not to disturb the composition of the glass.

Depth of Field

The depth of field (DOF) is a parameter used in optics andphotography to define the scope within which the objects observed by the optical devicegives the impression of acute (ie, with clear, nierozmazane contours).
The large depth of focus provides the focus of most elements in the picture, but littledepth of field (the precise focus at the subject item and blurred background) is sometimes highly desirable for portraits and art, because the subject is isolated against the background of the environment.


Immediately, the extent of depth of field are the following factors:
- aperture - the smaller the aperture is left (ie: the higher the aperture, eg, 16 or 22), thegreater the depth;
- the distance at which it is set to focus the lens (the distance between the object and the camera) - the distance is less, the depth of field as well.
- focal lenght


Indirectly, the extent of depth of field is affected:
- resolution and the size of the sensor / film

HDR photography

High dynamic range - a technique in photography involving the execution of several exposures of the same frame, some of which are underexposed, overexposed and the remainder. It allows you to obtain a picture of the scene is characterized by a large tonal range. 
Using this technique, usually done three to five photographs (sometimes more - depending on the tonal range and dynamics of the camera frame) with a properly illuminated shadows and indirect light elements, such as the difference between 2 EV (can be 1 or even 3), then combines the images into one file. In order to obtain the source photography, the method bracketing or produces a RAW file with different parameters. 
HDR composite image is subjected to the mapping of luminance, so that compression is a global contrast of the image, but are observed local changes in brightness. This technique can also be used to improve the quality of individual photographs, and noise, which in this case usually is enhanced, can be removed using a bilateral filter. 
For the first time this technique was used in 1857 by Gustave Le Gray, on the one hand trying to photograph both the sea and the sky, although it exceeded the technical capabilities of contemporary cameras and films. Le Gray solved the problem by doing two separate images with different exposure time, and then used the different parts of the negatives to obtain a positive.

Chromatic aberration

Chromatic aberration is a feature of the optical lens or to the differentfocusing distances (due to the different values of refractive index) for the differentspectral colors of light (different wavelengths of light). The result is a splitting of the lightthat is visible at the borders of contrasting areas in the form of color borders. Chromatic aberration is also present in the human eye lens, causing the coloredborders (orange and blue) around dark objects against a light background. In the caseof optical systems (telescopes, photographic lenses, etc.) is a defect in the deteriorating quality of reproduction. This phenomenon is also known in the black and white photography. There are nowhat's true colors, but the chromatic aberration causes blurring of the image. Correctioncan be achieved by apochromat or by use of an appropriate color filter with a narrowband of bandwidth or by the individual channels to convert color to black and whitechannel. Some of these methods require, however, increase the exposure time.

Pictorialism

Pictorialism is a trend in artistic photography which was developed before 1890 in England. It is based on the individual artist's interference in each print made by him, namely the break with the mechanical positive process. Instead of recording a photographic snapshot, a synthetic work of art is created. In photography, the artist uses fine art techniques such as: rubber, oil, and embossing. Photographs often resemble a pictorial image, drawing or graphic.

The Labyrinth of Looks. Documentary Photography in Latin America

An exhibition and publishing project of the Spanish Agency for International Development Cooperation, AECI, and Catalunya America House, which now joins theMinistry of Culture presented for the first time in Spain.

According exitmail account, the project consists of three exhibitions that have traveledfor nearly three years for 18 countries in Latin by the hand of the Network of CulturalCenters of Spain AECI, presenting differing viewpoints of authors working in the documentary field in Latin America, Spain and Portugal, committed to issues of socialcontent.

Available until 15 May in the Old Building Tabacalera in c / Embajadores, 53, Madrid.

Picture of a ghost?

Photo taken by the user, the mobile phone. - Only when viewing photos on your computer, I noticed that there is a figure of a girl, whom nobody has seen - says Internet surfer.