The stereographic projection of the Rokinon 8mm f/2.8 provides a wider horizontal and vertical field of view while having less extreme distortion and edge compression These can still be 180 degrees across the diagonal, and you still get a very wide horizontal and vertical field of view. Both of these projections are similar in look, but result in that classic extreme bulge in the center, with the elements towards the edges of the frames becoming a bit more compressed. However, most fisheye lenses use either an equisolid angle projection or an equidistant projection. It also distorts circular objects into ovals.Īll fisheye lenses distort straight lines into curves (unless the line passes through the image center). This keep lines straight throughout the image, but in wide-angle lenses, this results in the size of objects at the images edges being stretched larger than they are in real life. A non-fisheye lens can be said to have a rectilinear projection. The Rokinon 8mm f/2.8 Fisheye is unique in that it features a unique projection compared to what almost all other manufacturers use with their fisheye lenses.įisheyes can have several different projections…that is how it maps a point of light in space to the image sensor. I’m going to get a little technical for a minute here to discuss something unique with this lens. Image Quality Fisheye Projection The equisolid-angle projection of the Panasonic 8mm Fisheye on the Olympus OM-D E-M5
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