Kenko Kenko 400 mm f/8 Mirror is a telephoto lens with a 400 mm focal length and f/8 aperture for Micro Four Thirds and Sony E and Inne and Canon EF and Nikon F and Pentax K and Sony A cameras. Weighing 340 g measuring 74 mm in length, it's a well-balanced option for wildlife, sports, and distant subject photography.
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Optical and physical characteristics
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Optics
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Nikon Nikkor
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Canon
Sony