SMC Pentax-F 50mm f/1.7 is a fast autofocus prime lens for SLR cameras.
The optical scheme comprises 6 elements in 5 groups. Thanks to minimum aperture ratio of f/1.7 enables shooting in low lighting conditions without a tripod or a flash. Due to the fact that lens has 6-bladed aperture, the subjects located outside the depth of field may be shown which the nuts-effect in the bokeh.
This lens has a size of 31 mm. It is very compact and pocket-size. The weight of this lens (200 grams) is suitable for everyday use. The lens is suitable for shooting near objects. Mounting the filter has a common size. Lens fit for low light conditions. SMC Pentax-F 50mm f/1.7 went on sale in 1987. Currently out of production (1991) and is no longer available.
May be available from: Amazon.com, Amazon.co.uk, eBay.com, eBay.co.uk.
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