Go low-key

Get to grips with the powerful toolset on Mac

Convert your shots to mono in Photoshop for a variety of stylish results, with James Abbott

Create contrast in your travel images by using Lightroom Masks

Overcome common problems and create better-looking shots

For more interesting portraits, take a direct approach and ask your subject for a shot

Here are the top ten images uploaded to Photocrowd from Round One, Black & White, with comments by the AP team and our guest judges