Raynox HD-6600PRO -37 with wide-angle lenses and converters, a more or less strong barrel-shaped distortion is inevitable. However, this special wide-angle converter is designed on the basis of a sophisticated calculation and construction almost without distortion (only -1.3% residual distortion) and achieves a high resolution of 350 line pairs per millimeter (in the image center with an MTF contrast of 30%). This converter, specially developed for high hohem digital cameras, contains three free-standing, fully multi-layer coated lenses using high refractive index glass types. It is an ideal accessory for professional use, but also for demanding amateurs, who have to record under cramped space conditions. With this converter in front of the camera lens, there is no change in the aperture value of the light loss (the light intensity remains unchanged). The original Raynox adapters are designed and built in such a way that they fit mechanically and optically optimally with the HD-6600PRO and provide the best possible picture quality. When using adapters from other manufacturers in conjunction with the Raynox HD-6600PRO, there is a general risk that the image quality will deteriorate slightly, especially in the image corners (vignetting and blurring, because other adapter ring thicknesses will cause the converter to be positioned differently before the lens enters the lens). -Resolution 350 LP/mm in the center -Fast distortion-free image (-1.3%) -Front filter thread 72 mm HD-design made of 3 free-standing lenses
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