Originally posted by paolojackson I guess the main thing that I really like about the DA 40 is the pancake size. I see myself using it at parties (not at night) or taking it around everyday.
Everything else, I'd rather take the 43. I definitely could use the extra speed and it just looks so well made...
For candids at parties you'd do better with a wider lens, possibly a zoom with wide angle of 18mm or so in the range. Primes; 21mm, 24mm, 28mm.
The Sigma 17-70 is bolted onto my camera most of the time. A 28-105 f/3.2 is a fine quality Pentax lens that might suit you well too.
When more control over the subjects & shooting conditions is available, the primes come out.