In my previous column I illuminated some hidden features in Apple Photos that can quickly make your cherished images look their best. In this column, you’ll learn to adjust brightness in specific areas and copy all your adjustments from one photo to many others.How to use the Levels sliders
Photos for Mac sports some seriously advanced image editing controls in its Adjustments panel, the most powerful of which is Levels. Amazingly, while a Levels adjustment in Photoshop or Photoshop Elements has just three sliders, Photos has eight. This gives you precise control over the brightness levels of all the tones in your image. For example, you can control brightness levels in just the darkest shadows, just the midtones, just the lightest highlights, in the tones that fall between shadows and midtones, and in the tones that fall between midtones and highlights.
To open a Levels adjustment for a selected image, first press the Return key to make sure you’re in Edit mode, then in the list of tools on the right, click Adjust to open the Adjustments panel. If Levels doesn’t appear in the list of Adjustments, click Add at the top right of the list and choose Levels from the resulting menu.(The article continues...)