1b), and the invention of the achromatic doublet by John Dolland and others (Fig. 1c). In the nineteenth century, the emergence of diffraction theory enabled telescope builders to understand in ...

In this section you'll find photographic features that explore holidays and photography courses, details about members meetings, trials and tribulations of installing new software along with ...

Buying the right camera, lens, accessory or software to suit your photography is really important. Our product reviews offer independent views with hands-on opinion and honest verdicts aimed to ...