Photoshop Zoom Hand Eyedropper Tools

The Zoom Tool magnifies / reduces the image view without changing the image data.

• In the Toolbox, select the Zoom Tool.
• As default the tool magnifies the view, so the cursor looks like this . Click on any area of your image to magnify it.
• To reduce the view, click the "zoom out" button on the Options bar; then click on your image.
• If you check "Resize Windows to Fit" in the Options bar, the document window is resized to better fit your image every time you use the Zoom.
• The 3 buttons in the Options bar let you select one of 3 standard views: "Actual Pixels", "Fit On Screen" or "Print Size".
• Optionally, you can choose "Fit on screen" view by double-clicking the Zoom button on your Toolbox
  
  

The Hand Tool allows you to navigate an edited image, when it is not completely visible in its window.

• In the Toolbox, select the Hand Tool.
• Drag your image to bring the hidden areas into the view.
• The 3 buttons on the Options bar allow you to choose one of 3 standard viewing modes - Actual Pixels, Fit On Screen or Print Size.
  
  

The Eyedropper Tool defines the foreground / background color.

• In the Toolbox, select the Eyedropper Tool.
• Click somewhere on your image to define the foreground color. Look how foreground selector on the Toolbox changes.
• Alt-click (click holding down the [Alt] key) to set the background color. Look how the background selector on the Toolbox changes.
• In the Options bar, you can change sample size (the Eyedropper's range):
  • the "Point Sample" picks up the color from the pixel you click on
  • all the other samples read average values from larger areas