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| − | Fisheye lenses have the widest field of view of any lens group and they distort the resulting image in a dramatic way. Fisheye lens fall into two categories: | + | #REDIRECT[[Lens#Fisheye]] |
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| − | * Circular fisheyes: produce an image usually with a 180 degree field of view and dramatic vignetting resulting in a circular image in the 35mm format. They usually have a focal length around 8mm.
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| − | * Full frame fisheyes: also have a 180 degree field of view but they stretch the image of the full film plane. Sometimes this category of fisheyes is known as corrected fisheye lenses.
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| − | In general fisheye lenses are expensive and little used in everyday photography.
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| − | Fisheye adaptors: auxiliary lenses are available that simulate a fisheye field of view. This is cheap way to play with the fisheye effect without investing in a dedicated fisheye lens, although, as with most auxiliary lenses, the quality of your images will not be the same as those taken using a 'real' fisheye.
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