Pentax Q 8.5mm f/1.9 Standard Prime (01)

nice lens, but definitely can't be considered as a "portrait" Pentax Q series uses a tiny sensor which limits the image quality sacrificing a lot for compactness of the whole system. The 01 Prime lens is excellent optically, focuses fast and precise, produces great images at f/1.9 and up. However if you expect anything like you get from 50mm f/1.9 (or 1.8) on a full frame or APS-C or even micro 4/3 , you're in for a disappointment . The sensor is so small that you can't get any decent bokeh and subject separation even at f/1.9 . Pentax should have considered a faster prime for sure , f/1.2 or 1.4 would produce a much better portraits, but alas... you get a small compact relatively fast lens , which produces pretty similar image to a 02 standard zoom at about 8-9mm in most shooting situations. Overall recommended for good image quality and compactness.Read full review

Not as sharp as a DSLR but better than any Point n Shoots. If you want to get a real idea of the quality look at the web reviews Flickr pictures taken with this lens and Youtubes about this lens and the Q7 camera. Its an exceptional travel camera. A great compromise between a compact zoom and a larger digital camera. This lens is sharp in the center with just a bit of distortion on sides but most people will not notice it. Makes the camera fit nicely in a jacket pocket.

Sharp, Fast, Tiny. Feature Packed ~50mm Lens. I've only had it for a day, but have taken around 100 pics with it. I've used it mostly wide open and have to say, I find the image quality impressive. Equally impressive is the lens's size. It's tiny (but expected, it being a Q lens). Built in ND filter works well. Seems to have a sturdy build quality. I rather like the feel of the focusing ring. I also like that it can spin infinitely in either direction. A plus is that you cannot tell where it catches the mechanism that actually focus' the lens when turning it. It just turns smoothly into infinity while focusing and beyond. I also love the sound of the built-in shutter. Sounds reminiscent of an old film camera shutter. I have no real complaints.