Short and fast lenses: Advanced technology guide
Bob Newman looks at two recently launched Sigma lenses that have a limited zoom range
Technology guides
The flash: Advanced technology guide
Bob Newman looks at the development of the humble flashgun, from the electronic version onwards
Lithium-ion battery: What is it and how does it work?
In this article we look at the lithium-ion battery, providing a guide to what it is for and how it...
T-stop: What is it and how does it work?
In this article we look at the t-stop, providing a guide to what it is for and how it works
Consumer demand: Advanced technology guide
Bob Newman explains how manufacturers need to be flexible when planning camera production
DIY super resolution: Advanced technology guide
Bob Newman shows how you can achieve super-resolution if your camera doesn’t have such a feature
High resolution: Advanced technology guide
Bob Newman on how modern cameras shake their way to high resolution
Focus peaking: What is it and how does it work?
In this article we look at focus peaking, providing a guide to what it is for and how it works