The true limits lie in how much your lenses will allow you to zoom into a scene. Theoretically, you can stitch an infinite number of images. How far can you go? The lens is the limit. Moving objects can present challenges for stitches, and Photoshop will allow you to select their position based on a specific frame and automatically remove ghosts, but artifacts in fields of motion, such as water or clouds or foliage, are often inevitable, making this technique suitable for many, but not all, situations. These can be corrected, in part or in whole, after a merge with Photoshop’s powerful distortion tools: Free Transform, Puppet Warp and the filters Lens Correction, Adaptive Wide Angle and Liquify. You also may encounter some spatial distortions in stitched images, either subtle or dramatic, depending on your exposure methods. When you make exposures for stitches, shoot a little loose, as it’s quite likely that the border of the final image produced will need to be cropped (or cloned) to be made rectangular. Photoshop will place separate exposures on separate layers, transform and align and mask them, then selectively adjust color to create seamless transitions between them. In most cases, you’ll want to use all three options it offers-Blend Images Together, Vignette Removal and Geometric Distortion Correction-but any of them can be unchecked before producing the final merged file. Either way, you’ll end up in Photoshop and encounter the Photomerge dialog. Troom, go to Photo > Edit In > Merge To Panorama In Photoshop. In Bridge, select the files you wish to include in a photomerge and go to Tools > Photoshop > Photomerge. While you can consider dedicated panoramic software like Kolor Autopano Pro or PTgui for challenging images, it’s highly likely that Photoshop is all you’ll need. With this method, detail is optically captured, though you also can choose to enhance it further with software. It’s a matter of simple addition-two files are better than one, three files are better than two, etc. Another method for increasing the resolution of your image files is to break a scene into pieces with separate multiple exposures and then stitch them together using panoramic merge functions in today’s software.
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