#56 Pan & Zoom Techniques
When working in Photoshop, it's important to be able to quickly find and examine details at high magnifications, especially with today's high-resolution DSLR files. This can be accomplished with a couple different techniques that use the Hand tool and the Zoom tool with the new Scrubby Zoom option.
Panning refers to the ability to scroll across parts of a document without having to use the document's scroll widgets. First, zoom to a magnification between 50 and 200% depending on the level of detail you need to see. Once you're zoomed in, press and hold the Space bar (this temporarily invokes the Hand tool), then drag the document to move it from side to side. If you have the Flick Pan preference selected (see Figure 50a), you can quickly "flick" your stylus to make the document scroll rapidly, like a sheet of paper being slid across a tabletop.
Photoshop CS5 has a new way to zoom in directly to the details you want to see. If you press Z to invoke the Zoom tool, you'll notice in the Options bar a Scrubby Zoom setting (Figure 56). If you select this option, you can place the Zoom tool directly over a specific image detail you want to view at high magnification, then drag to the right. This works like a zoom and pan feature with a single step.
Figure 56 The new Scrubby Zoom allows you to focus on specific parts of your image more quickly by combining zoom and pan movements. This enables you to jump from one spot to the other without hand panning the document and then zooming.