Monthly Archives: February 2014


February 25, 2014

Composition – Why do parallel lines converge ?

Parallel lines can be projected either as parallel or as converging lines on a 2 dimensional photograph. As converging lines they are considered a distortion of the reality, nevertheless they can be useful to give the illusion of depth. It is your choice as a photographer to represent those lines parallel or not, and this article explains how to control it.


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February 14, 2014

Depth of Field and Aperture – A simple relationship ?

It is common knowledge among photographers that the Depth of Field increases when the aperture decreases, but by how much ? Unfortunately there is no simple relationship between the DoF and the aperture, but this article provides a accurate and simple answer to the question.


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February 7, 2014

Flash Technique – The 1st and 2nd curtain explained

A DSLR camera provides the option to fire the flash on the 1st or 2nd/rear curtain, which can produces different photographs in the same conditions.  This article explains what it means, and how to use it.

The series of pictures below shows a tennis ball falling down, captured with different settings of flash and ambient light. It put in evidence the influence of setting the flash on the 1st or 2nd curtain.

flash_technic_curtain_drawing_2The rest of the article also explains what are 1st and 2nd curtains, and provides recommendation on which setting is better.

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February 1, 2014

Depth of Field and Hyperfocal Distance

The Depth of Field (DoF) increases with the distance to the subject, and even becomes infinite beyond a certain distance, which is called the hyperfocal distance. This article tells you everything you need to know about it…


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