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Latest Review Posted SMC Pentax-DA* 16-50mm F2.8 ED AL [IF] SDM
I bought 2nd hand DA*16-50/2.8 in package with other things. I also have Sigma 17-50/2.8 for many years and Sig18-35/1.8 too. My "new" DA*16-50 lens already had issues with Sudden Death Motor and although it looks like new and was only used with camera having less than 2500 clicks on shutter counter, the motor was already dead. DA*50-135/2.8 in same pack was struggling at the beginning, but after some time it was possible to wake the motor up and lens works. But 16-50/2.8 refused to do anything, so I had to convert the lens to screw drive only. Camera driven AF +/- works, but it is only so-so usable with +10 AF fine tuning especially on wide end. F2.8 image is weaker than what Sigma 17-50/2.8 can do. It needs about F4 to show some good image. On longer end central part is usable with F2.8 and whole image needs at least F3.5 to be usable outside of center. Screw drive AF is quite fast and even in live-view it is usable altough not a speed demon. But at least live-view is more accurate. Back in K10D era when this lens was introduced, the price was already premium and +/- corresponded with what this lens can provide. But in 2009 the price was increased to unbelievable level and it remained quite overpriced in Ricoh hands until it was replaced by the new HD-DA*16-50/2.8 PLM AW (which is again overpriced, but at least has better image output). In general, this lens only makes sense if it has some low price and you accept the fact, that motor will die over time. ...



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