The use of a frame can turn an otherwise plain picture into a pleasing one. Usually a foreground element is used to create the frame. Examples are an overhanging tree branch, a window frame, a door, arches, a fence, rows of trees, etc.
The goal in using a frame in your photo is to isolate the main subject and construct an appealing composition within your photo. Many times it is used to create a feeling of depth. You may decide to keep the detail of the frame (as in a wall, fence or branch), or let the frame go completely dark (as in a window frame).
Keep in mind objects in the foreground (and even in the middle or background) that could be used as a frame when composing a shot. Move around in your environment to find the best angle or viewpoint when framing a subject. You might need to kneel down, back up or zoom in to capture the best composition for your chosen frame and subject.
You can also use image editing software to create a frame without the camera. By combining two or more pictures into one image, you can create spectacular effects. The possibilities are up to you!
Be cautious though when doing this. While there is nothing wrong with incorporating certain aspects of different pictures into one, be careful about utilizing artificial frames on familiar landscapes and scenes.
Nothing could look odder than the Eifel Tower being framed by the Great Wall of China. Unless to are trying to create a dissonance to the viewer, a picture of that extreme will only look bizarre.
Next time you go to take that photograph, check out what you might be able to use as a natural frame. Experiment with this, and if you have any doubts, take one photo with a frame and one without. I bet you'll find you eye drawn to the one making use of a natural frame.
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