Pentax Smcp Da 16 50mm F 2 8 Ed Sdm Lens 21650 B H Photo Video I finally got the chance to buy the pentax da*16 50mm! this is my initial first impressions of the lens bolting it straight onto my k 70 & heading out to tak. Like all other da lenses, the smc pentax da* 16 50mm is designed exclusively for pentax aps c format dslr cameras. it was announced in late february, 2007. it auto focuses with an sdm ultrasonic motor on the k10d (firmware 1.30) and newer cameras.
Pentax Da 16 50mm F2 8 Sdm First Impressions Youtube A major one i would say no. but add in the build quality and weather sealing and the fact that it is usable wide open at f 2.8 accross the range (and great for portraits at 50mm and f 2.8 ) it is an upgrade for sure but not as major a one as like jumping from the kit lens to the da* (after all the sigma 17 70 is a good lens). Gary wolstenholme reviews the pentax da* 16 50mm f 2.8ed al [if] sdm wide angle zoom lens. this 3.1x zoom lens provides an angle of view equivalent to the popular 24 75mm range on a 35mm format. Pentax da* 16 50mm f 2.8ed al [if] sdm performance. at 16mm and f 2.8, sharpness in the centre of the frame is already outstanding. unfortunately the performance of the lens towards the edges of the frame isn't quite as good at maximum aperture, only achieving fairly good levels of clarity. stopping down improves performance across the frame. Verdict. the most expensive of the pentax lenses in this category 16 50mm did not always deliver everything that it promised. in particular, the f 2.8 aperture is more for bright viewing than it.
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