Pentax 21740, 21717, 21580, 21660, 21650 DA 200mm f/2.8ED if SDM, DA 300mm f/4ED if SDM focusing

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DA 200mm f/2.8ED [IF] SDM, DA 300mm f/4ED [IF] SDM focusing

•The mechanism does not allow the angle of rotation of the focusing ring and the distance scale to align while focusing. Always check the focus using the view finder before taking a picture. This is especially true with manual focus and the Quick-Shift Focus System.

•When focusing with manual focus or the Quick-Shift Focus System, the mechanism allows the focusing ring to rotate freely after it is set to ∞ (infinity) or the minimum focus distance.