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Digital Single-Lens Reflex / pentax-k
Others / pentax-k / Pentax-A テレコンバーター
The Pentax-A 2X-S is a manual-focus teleconverter that doubles the focal length of compatible lenses. It is compatible with the Pentax K mount and is used with compatible lenses, including Pentax-A series lenses. When attached, the maximum aperture becomes two stops slower.