You can toggle back and forth between the two views every time you click the "Z" key. Once you've zoomed in to a certain point, you can then go back to the previous zoom state by clicking the "Z" key on your keyboard. I usually use the keyboard shortcut "Space Bar" to move around, but when I'm using specific tools, it won't allow me to, so that's when I utilize the Navigator panel. Additionally, you can move around the image once it's zoomed. The zoom feature in the navigator panel gives you the same ratios as in the toolbar, just in a different location. If your toolbar is missing in the Develop module, simply click the "T" key on your keyboard, and it will reappear. If yours is missing, you can add it to your toolbar by clicking the triangle to the far right and clicking on the word Zoom. I've found that the zoom tool often seems to be missing from users' toolbars (for whatever reason). With the zoom tool in the toolbar, not only can you zoom in just a bit, but you can also pick an exact ratio to go to, like 3:1 (super zoom). The keyboard shortcut is my go-to zooming method, but sometimes it will stop just shy of the 3:1 ratio (the largest zoom), which is why I am sharing the other two methods. If your first zoom doesn't get you to the magnification you desire, do it again it will zoom in closer each time. To zoom out, use the CTRL/CMD and the - keys. To zoom in quickly and easily, you can use this handy keyboard shortcut: CTRL and + key (PC) or CMD and + key (Mac). **If you only want a quick zoom in, one that isn't super close, you can click your mouse in the image, as long as you are not using a tool like the adjustment brush or clone/heal tool.
When editing an image in the Lightroom Develop Module, you may often need to move in much closer (zoom in) to see a particular detail.
ZOOM IT TOOL HOW TO
Over time I learned HOW TO MASTER THE LIGHTROOM ZOOM FEATURE, so I want to pass on what I learned to YOU. When I first learned Lightroom, I often wanted to zoom in on a particular spot, but I couldn't get close enough. This will be a relatively simple and straightforward tutorial however, these simple tips will be VERY HELPFUL! How to Sync Lightroom Presets from CC to Mobile
ZOOM IT TOOL INSTALL
How to Install Presets in the Free Lightroom Mobile App