trying out my new Pentax 50mm f/1.4 lens Nick wrote on 2009/05/26: Bokeh looks nice and smooth, good lens! Roel wrote on 2009/06/01: Smooth bokeh, nice. :-) They call these 50mm lenses 'pancakes'. Love the name, but I still don't understand why they call them that. Milo wrote on 2009/06/01: Because they're relatively flat... this 50mm not so much, but the SMC P-DA 40mm definitely is.