I just got the 43 a little over a month ago and I'm just beginning to realize how amazing of a lens it is in terms of IQ. I'm including an example of a shot that I took today to show you what I mean. All the PP I had to do with this shot was lighten it a little--no sharpening needed.
To me, I'm still fairly new to the DSLR world, but I've already come to understand that quality lenses really do enhance your enjoyment of photography. With that, I've decided to focus more on quality, rather than quantity. My next lens purchase will be the 21, and then a dedicated macro (I'm leaning towards the FA 100/2.8 at this point). Even though I have a really good vintage-80s F70-210, I still may eventually pick up the DA70 to fill the gap between the 43 and 100. If I get the 21 and later decide that I want to go wider, then I'm open to that idea, as well--I'm also curious about the 15--I wonder how much it's going to cost.
One suggestion that I'll make that might help you determine whether you prefer zooms or primes is to pick up a couple of cheap primes--say a 28 or 35mm + a 50mm (specifically the A50/2). Make a point to use both primes and zooms and see which ones you use more often. Once you've figured that out, you can start building your collection of higher quality glass with confidence.
HTH,
Heather
Last edited by heatherslightbox; 02-16-2008 at 06:03 AM.