This is Rokinon’s newest fisheye lens for Pentax. It features some great new features that don’t seem to be to be had on Rokinon’s first highly rated 8mm f/3.5 fisheye lens. Optics and glass are high definition (HD) with very clear & sharp images. This lens also includes a removable hood which may make it easier to be used on full frame cameras. Whilst this lens is designed for APS-C sensors, full frame users can now use it without the hood. On APS-C cameras the pictures will fill all of the frame or screen. On full frame cameras the lens will produce pictures with a semi-circular image and close images will appear proportionately large for a dramatic effect.
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Manual focal point; aperture range of f/3.5-22
10 elements in 7 groups 1 spherical lens
minimum focusing distance of 1-foot
Ultra-wide 167º diagonal field-of-view for APS-C size image formats will produce a rounded image that does not cover all of the frame when used with compatible full frame digital cameras or 35mm film cameras
Features improved HD optics for sharper images
