guys, he was asking the diff between 50 F1.4 and F1.8, not what is 50mm F1.x =.=||| someone shoot a F1.4 and F1.8 photo out. to show the diff of bokeh

* and 50mm F1.8 is not FF lens, is a DT lens, thus it cannot fully ultilise on A900 (yes, it still can be used on A900) and its far more cheaper, who knows in the future Alpha will release A700 replacement with FF??? then definately F1.4 has the upper hand