I had a fujian 35mm 1.7 before, and it was great. Sharp in the middle, swirly bokeh and weak edges, and a great washed-out flare in strong light. I stupidly sold it, but recently bought another one. But this one is very different. Soft across the frame. No sharpness at all. No swirly bokeh, and it has an odd flare with ANY lightsource -- even weak ones. I got it off eBay, and I'm not sure if the seller will take it back. Does anyone know -- is there anything that can be adjusted on a Fujian optically? Any recommendations? Or, if you have a Fujian that you aren't using, that has a sharp center and swirly bokeh, please PM me as I may be interested in buying, if I can't fix this one in some way.