Originally posted by fuf In your planned use I would suggest to buy DA21 unless you want to make use of the special look of wide angle of DA15 -- the difference between 15 and 21 FOV is quite pronounced. DA21 is definitely a more 'general' lens.
I would agree with this. There is a huge difference between 15mm and 21mm. It's not like comparing 35mm to 43mm. So, this is a decision that only you can make. The DA21 is a better general purpose lens, while the DA15 is more of a special purpose lens that would leave you with a huge gap up to 40mm. That said, the DA21 is probably the least beloved of all the Limited lenses, while the DA15 is one of the most. I'm not saying that the DA21 is bad or that it does not have its fans, but rather that it may not be quite up to the level of the other Limiteds. I don't own it, so I do not speak from personal experience, but this is what I surmise from reading this and other forums.
Rob