Lighting up a Room with Just a Flashlight: an Example

In a previous article, we described a method for lighting up a completely dark indoor scene to be photographed through the use of a simple pocket flashlight. This time we are going to see an application of that technique.

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Lighting up a Room with Just a Flashlight

What if I told you that you could light up any indoor scene with just a pocket flashlight in order to get a beautiful picture of it? Yes, that is right! No need of powerful lamps or flashes, but just a tiny faint flashlight. No matter how dark the interior is (even completely dark) and not even its dimensions. Keep on reading if you want to discover how all this is possible.

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HDRI - High Dynamic Range Imaging

One of the most common problems photographers face is taking pictures with both a very bright and a very dark part in the image. In these cases, we usually end up sacrificing the brightest or the darkest part, leading to disappointing results. There is a technique, however, which can work out this problem, and it is called High Dynamic Range Imaging (HDRI).

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Color in CCD – Bringing Colors into a B&W World

CCDs and CMOS sensors alike cannot distinguish colors; still our camera takes colored pictures. How can it be?

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Moment in Landscape Photography - Seize the Right Time

In landscape photography, the moment in which we take the picture is crucial. Different moments lead to completely different images, even when shooting the same scene. Light conditions change dramatically upon changing of the hour of the day or the day of the year. As a photographer, you should be in the right place at the right time. Unlike a studio photograph, where light is artificial and thus can be controlled at will, in landscape photography you must possess the fine ability to seize the right moment.

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Physics of Colors - Tinted Simplicity of Nature

Mastering colors in photography is an art only proficient photographers can boast. From a physics point of view, however, color is well known since the beginning of the 20th century. Starring in this brief physical explanation are: electromagnetic radiation, photons, wavelength and energy.

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Eye vs Camera - Different Perceptions of the Same World

How many times have you taken a picture and then, when you looked at it, you got disappointed because it did not render the beauty you saw at the moment of shooting? Yet, the scene you shot and the scene you saw were exactly the same. This is no surprise, because a camera sees the world differently than our eyes. I will now try to sum up the major reasons. This will help you render reality more accurately in your photos or taking advantage of these differences for creative artwork.

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Electronic Shutter in CMOS Image Sensors

Digital cameras usually have both an electronic and a more traditional mechanical shutter. In this article we are going to see how an electronic shutter is realized in CMOS images sensors.

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CCD in Digital Camera - Turning an Image into a Bunch of Electrons

In many digital still cameras, the image sensor capturing our photograph in place of the standard film is a CCD (charge-coupled device). How it is manufactured and what happens in it when we press the shutter release button is of interest to any good photographer, because it may contribute in taking better photos. Moreover, basics of lingo are useful for the understanding of characteristics of a camera, especially if you are going to buy one.


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