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The adjustments you apply to your photo in HDR Efex Pro can have a rather significant impact on the detail and quality for the image. And so it can be very helpful to get a very close look at certain portions of the photo while you're working on establishing those settings. Let's take a look at the various options for evaluating the image, including zooming in and out and panning around the photo as well as looking at a histogram display for the image. We'll start off with the basic zoom setting. Up at the top right above the image, we have options for a particular zoom percentage.
So, for example, I can zoom into a 100% view on the photo. To enable that zoom I simply click the Zoom button and that will take me into a 100% zoom setting in this case. And then clicking again will take me back to the fit image in zoom display. I can change the actual zoom setting at any time. For example, if I want to go in to a 200% zoom, then I can set that as the option and then toggle in and out for that zoom setting. Whenever I'm zoomed in beyond the point where the image fits within the available space, the navigator will pop up. Allowing me to pan across the image just by clicking and dragging the box around within the navigator.
Or by clicking on a specific portion of the image that I'd like to view within the navigator. I'll go ahead and zoom back out to the fit image option. And then as I move my mouse over the image you'll notice that at the bottom right corner of the display we have a loop view that follows my mouse. This area is zoomed in at a 100% scale and I can move around the photo to evaluate specific portions of the image. I can also lock this display on a particular detail within the photo so that moving my mouse around the image doesn't change that display.
To lock that view, you'll click the Push Pin button, and then move your mouse out over the image. You'll notice that my mouse pointer now appears as a pushpin, and then I can simply click on the area of the photo that I want the loop view to zero in on. And now moving around the image will not cause that loop view to update, so I'm always looking at the same portion of the image. To turn that setting off, I can simply click the Push Pin once again, and now the loop view will follow my mouse. We can also switch to the histogram display by moving your mouse over the loop display and then choosing the histogram option and that will display a histogram for the current image.
So it does reflect adjustments that you've applied to the photo. For example in this case I've converted the image to a monochromatic version, a black and white interpretation. And so we only see luminous information on this histogram display. We can also, in the loop and histogram display, turn on a preview for clipping of shadows and highlights just by clicking the buttons at the top left and top right of that display. And that will cause a display within the image to show me if I've lost detail. So, for example, if I adjust my exposure setting so that parts of the image are so bright as to be blown out to pure white, I'll see a preview of that within the photos.
So you can see the green overlay, for example. I'll go ahead and reset that setting though. And I'll go ahead and also turn off the click and preview displays for this image at the moment. Most of the time I work just within the loop view and I evaluate the image taking a close look at some of the subtle details. Making sure I have adequate shadow and highlight detail for example. But you can certainly make use of that histogram display as well. But ultimately, the key is to be able to get a close look at particular details within your photo. And between the zoom setting and the loop and histogram displays, HDR Efex Pro provides the tools you need to evaluate your image as you're optimizing it.
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