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Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials. Photo Credit: Giorgos Gotsis Fresh fruits are a wonderful way to obtain fiber that makes you're feeling full. Eating fruits helps you are feeling full longer than drinking smoothies. The Purdue University recently conducted a report on 20 people and let them enjoy apples in different ways such as eating apples and ground apples or drinking apple juice. The study signifies that the people who drink apple juice get hungry earlier than the mediocre ones. Water makes up about 80 percent of all of fruits, and that means you don't need to worry being dehydrated. Additionally, these fruits don't contain bad cholesterols. Therefore, when shooting in macro, it is easy to get a shallow depth of field if utilizing a large aperture. We often make use of the F8, F11, F13 such small, and medium-sized aperture to look at photograph to ensure the photo has clear range. If you use a 100mm macro lens to shoot the insects' close-up, even with the F13 aperture, the depth of field is extremely shallow, and sometimes need to utilize the manual focus function to carefully adjust the focus position to spotlight your eyes of insects to make the image more vivid. Photo Credit: Giorgos Gotsis