Samyang 85mm F1.4 AS IF UMC Pentax: High image quality at bargain-basement price
Introduction At just $259, it’s one of the most accessibly-priced lenses of its type, but it is not without some drawbacks. We’ve already mentioned that the lens lacks autofocus, but like the others (except the Nikon-mount option), the Pentax-mount version requires stopped-down metering (and with that, closing the lens to the shooting aperture) and lacks any data bus connections, so the camera cannot record any EXIF data (such as the aperture setting).As regards optical construction, however, this lens is bang up-to-date. It adopts 9 elements in 7 groups, with one hybrid-aspherical element, and it features internal
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