User-created articles: Technology

Chroma key technology is the technology which is used to create different backgrounds for the videos. Common example is of TV weatherman. The weatherman is shot standing in front of a green screen, which is substituted for the weather map background later.

Exposure is determined by the luminance from the scene, the f-ratio, and the shutter speed — only. All other procedures, either in-camera or with the computer, to affect the brightness of an image, including ISO, comprise brightening -- a concept essentially different from exposure.

There is little information available about how to set the Photo Style in the new GH3 camera. This article describes an analysis of the choices and the results identifying the best settings resulting from the analysis.

Will CSC completely replace the DSLR's ?

A slight lens distortion in Nokia 808

Does The Ideal Camera Exist? Taking a modern twist on classic SLR's and what could potentially be achieved when today's technology is applied to timeless classics.

I present here a concept camera, one that harks back to the classic age of manual controls, blended with contemporary digital innovation, shared here for the purposes of discussion, finding out what it really is we want as photographers; perhaps what we can inspire someone to create for us one day.

Twenty years from now, will you be able to open Raw files from some of today's new camera models? Revisiting an old question.

This article tries to provide a practical guide on how to estimate the maximum strength of background blur for a given camera / sensor type.

Harvard researchers have created a distortion free lens with optical performance approaching the diffraction limit of light using an innovative approach that could revolutionize the future of lens making.

We face many problems on hard drive since we are using it from several years, but these problems are likely to be removed by solid state drives. SSD's are much more faster, reliable and convenient for speed loving users etc.

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If you still have your good-working , film-based camera, you should not leave it as a dust-collecting object, but use it - together with your digital camera !

A basic discussion outlining the main differences between backside and frontside illuminated CMOS image sensors. BSI sensors are seen as a useful way to increase the low-light ability of small-pixel high resolution image sensors - particularly for the mobile world.

Learn how to use the new features of CS5 Edge Detection

The myth that focus-locking phase-detection autofocus is an open-loop control system is (in the voice of Mythbuster, Adam Savage) "Busted!" This article provides tests you can use to prove it is not only a closed-loop control system, but that it's fundamentally the same process as continuous-focus.