As far as I know, the only affordable standard pancake AF lens available. Tiny, quite sharp if stopped down 2 stops and a nice old fashioned 50mm perspective. I got a card full of keepers the first time I used it.
Thanks, Andrew. They look fine. I saw the E-420 and 25 combo in Campkins in Cambridge today for GBP479. I'm not sure if I really want a prime lens, but these shots certainly tempt a chap ...