A definition of Electromagnetic Diaphragm

This allows the diaphragm of a lens to be controlled via the body on which it is mounted, a fairly standard feature on modern DSLRs.

Review Finder

to

Popular articles

We round up the best travel compact cameras for currently available on the market, covering everything from budget tough cameras to advanced compacts

Full-frame DSLRs offer the very best in image quality, but which one is best suited to you? We've pick a selection of the best full-frame…

The Best Bridge Camera of 2016 - We select some of the best bridge cameras currently on the market

We list some of the best smartphone accessories on the market right now.

Getting yourself in a memory card muddle and not sure which card to buy? We look at memory card speeds and the fastest memory card…

Which are the best compact cameras on the market right now? Find out in our selection of the best compact cameras of 2016

A kit lens is a great starting point, but what should you be looking to buy next? We list some of the options for entry…