Tag Archives: ISO

A Guide to Photography

Photography is often famed to be a captured form of art. Sometimes it is rated as inferior to that of a painting! Nevertheless, many artists have shunned the so-called derogatory -lower form of art’ which photography was famed to be earlier. Ansel Adams, Robert Kapa, Yosuf Karsh, Dorothea Lange, Brassai and Jay Maisel, to list a few are the most celebrated photographers who are or have been known to take the most striking images, be it in monotones or in colour. With the epitome of certain economic factors, or maybe because of a certain steep of consciousness to liberal arts, it isn’t uncommon to see every girl or boy next door owning a professional camera. Few know the aesthetics of it, while the others are aware of the technicalities. On a personal front, one does not need to be Dr. Callaghari of all the technicalities to take a breathtaking picture. As they say, your camera lens is nothing but an extension of your eyes. As nave as it may sound that technicalities are not extremely important for photography, but there are certain basic -technical-know-hows’ one needs to enlighten himself when he possess a camera.

Shutter Speed Take your camera lens as a faucet. The smaller the opening of the faucet, there will be lesser flow of water entering the faucet and vice versa. This is the idea behind a shutter. The longer the shutter speed, for example, 1/4th of a second, it lets in more light, then a shorter shutter speed, let’s say, 1/400th of a second. Therefore, longer shutter speed blurs time and a shorter or lesser shutter speed stops action.

Aperture and f/stop Descriptively, aperture is the size of the opening in the lens when a picture is taken. Hence the larger the hole, more light enters the lens, the smaller the hole, lesser light enters. Aperture is measured in f-stops, or often referred to as f-number, per say, f/2.8, f/4, f/5.6, f/22 and so on. One confusing factor for beginners maybe larger apertures (where lots of light gets in) have a smaller f-stop numbers and lesser apertures (where less light gets in) are given higher aperture numbers.

Exposure A simpler way to explain exposure in photography is the amount of light collected by the sensor of the camera while taking a single shot. In simpler words, if the shot is -exposed’ for too long, the photograph will be washed out or as the jargon goes, -over-exposed’. And if the photograph is exposed for a shorter time then it will appear dark or -under-exposed’. Aperture and shutter speed are the two primary controls for which exposure is extensively used. ISO In layman’s language, ISO is the sensitivity level of your camera when exposed to light. The ISO number is directly proportional to your camera’s light sensitivity. With a high ISO your camera is capable of capturing images in low light without a flash. But higher ISO also has its own disadvantages. With an increased sensitivity, the picture might come out to be grainy or as it is called in still photography, it may have -noise’.

Depth of Field Also abbreviated as DOF, Depth of Field is the distance between the nearest and farthest objects that appear within a sharp focus in your picture. Since DOF is just a concept in still photography, it is subjective. It is a personal choice of the photographer whether or not he wants to enhance his photographs with the use of a DOF.

Rule of Thirds This is one and only important compositional rule you need to keep in mind while you have a camera in your hand. This rule works simply. Three imaginary diagonal and horizontal lines are drawn diving your image into a 3/3 diagram. The area of interests of your photograph must be within where these lines intersect each other. As I said, it is not necessary for a person who owns a professional camera or a good photographer to follow the above compositional rules or concepts from nook to hook. But it does give one a certain idea nonetheless. If you want to educate yourself further regarding still photography, digital photography ad more detailed aspect of the same, you are more than welcome to opt for the Book Chums eBooks subscription, wherein you can access eBooks for free or by paying a nominal charge which will definitely help you make the best out of your budding skills in photography.