This tool allows you to input your camera, aperture, focal length and focus distance, and get an almost instant calculation for your required near and far limits of focus, total depth of field and hyperfocal distance.
Image: © David Newton

CPN's Editor's Choice guest editor Magdalena Herrera, GEO France's director of photography, has selected her favourite images from over 4,400 submitted. The best images chosen by Magdalena Herrera are showcased in a special multimedia presentation on CPN.

Issue 3 of CPN magazine is now being distributed. Published in the five main European languages this issue goes behind the scenes with three photographers who shoot major fashion shows, and features interviews with Canon Ambassador Lorenzo Agius and award-winning photojournalist Benoit Aquin.

CPN talks to Swedish photojournalist Magnus Wennman about following the Obama election trail, America's weird and wonderful beauty pageants, and how underexposing images have given his pictures a unique style.
Image: © Magnus Wennman

In CPN's new series on how great photographs were taken Canon Ambassador Lorenzo Agius explains how he shot a portrait of actress Kate Winslet with a combination of inventive lighting and hand holding his EOS-1Ds Mark III fitted with the EF24-70mm f/2.8L USM zoom.
Image: © Lorenzo Agius

Three experts from Germany - a university professor, an advertising agency's head art buyer and a young commercial photographer - give their invaluable advice about how to make it in this highly competitive field of photography.
Image: © Oliver Doebler