Hi, everybody, I am a new comer here, however, I have taken photos with my K100d and Sigma 24-70/2.8 for almost a year. On the Jan/27/2008, I bought a DA* 16-50 from Amazon. And before this, I haven't heard of the QC issue of this lens(heard impossible :P), so I haven't test it after I got it.
These days, during taking some photos with it, I found that the edge sharpness is not so good, but I don't know if it is the "normal" status of this lens. If I send this lens to Pentax USA for adjustment, does it possible for Pentax Customer Service to make it better?
Attached is the link which includes a original photo(K100D, 16mm, F2.8, ISO200, without any filters like UV and CPL) and the 100% crop of the four corners and center. Would you please help me to confirm that may I send this back to Pentax USA for adjustment? Thank you so much.
Picasa Web Albums - Adonishong - 16-50.judgement
Last edited by adonishong; 03-15-2008 at 04:41 PM.