Technique and Advice Blog

Tamron’s new 18-270mm, with its piezoelectric motor, was named EISA’s European Zoom Lens of the Year 2011-12. Yet the same Tamron 18-270mm zoom failed to shine when tested for the October edition of WDC. How can that be?

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If you had to photograph a wedding using only one lens then which lens would it be? Having taken a break from wedding photography for several years a friend tempted me back into the field: so which lens did I go for?

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Television dramas such as the CSI series take many liberties with photographs, especially when it comes to forensic analysis, so let’s look beyond the CSI fiction to see what is really possible.

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The latest edition of Camera Lens News, from Carl Zeiss, has just been published and includes a feature on Planar lenses. Given that the Planar design was developed by Paul Rudolf for Carl Zeiss, CLN is the ideal source of information on this topic. Here is a summary of some of the points covered.

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Have you ever wondered what constitutes an education in photography? What are the topics and facts that examination boards and educationalists consider to be important? One way to find out is to look at the resources that teachers share amongst themselves via the TES (Time Education Supplement) website at www.tes.co.uk.

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There are several different colour problems that affect lenses but the one we are interested in here is known as chromatic aberration and commonly manifests itself in pictures as coloured fringes with red and green edges adjacent to opposite sides of a narrow white area. For this reason, chromatic aberration is sometimes known as the “Italian flag” defect.

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