I mentioned on my previous post the Pentax SMC FA50mm F/1.4 lens that I recently got hold of, just before I spent a week in Wales. I'd previously had a manual focus 50mm lens (f/1.7), but having heard how superb the autofocus 1.4 version was, I couldn't resist any longer.
On a couple of days when I was away, this was the only lens I used, and I had great fun shooting with a wide aperture (usually f/2.4 or f/2.8), and relishing in the super-shallow depth of field it gave. The out-of-focus areas are beautifully smooth ('nice bokeh').
Here are a few examples from the scuplture park at Lake Vyrnwy, Powys.
Pentax K10D, FA50mm f/1.4 @ 1/125s, f/2.8, ISO100
Pentax K10D, FA50mm f/1.4 @ 1/350s, f/2.8, ISO100
Pentax K10D, FA50mm f/1.4 @ 1/30s, f/2.8, ISO400
Pentax K10D, FA50mm f/1.4 @ 1/60s, f/2.8, ISO400
The more I use the lens, the more I love it.