Originally posted by OldChE I hesitate to ask this - if you could pick one more lens to get for the K-1, what would it be? One thing I had in mind (besides the 100mm macro for flower pictures) was a nice fast 50mm AF lens.
My solution for my K-1, my usual travel kit is my DFA 28-105, DA 55-300 PLM which does not work well at every focal length but is still worth it to keep the weight down, even if I have to use it in crop mode sometimes, the DFA 100 macro, which I use because it's the lightest macro out there, just a beautiful small WR lens, and if low light is expected a DA*55 1.4.
Peripheral on occasion lenses include a Sigma 24mm macro, a Rokinon 14mm 2.8 for astro photogrpahy, and three telephotos. DA*200, DA* 60-250, and Tamron 300 2.8, sometimes used with the Tamron MC-7 2x converter.
Rarely if ever used.
DA 35 2.4, FA 50 macro, Sigma 70 macro, FA 35-80, FA 50 1.7, FAJ 18-35 (rarely used but much appreciated when I need that focal length.)
I can't imagine why your DA 50 1.8 wouldn't work great. I was happy with my FA 50 1.7 until I dropped it and broke the AF, (still works in MF) but if you already have a 50 1.8 give it try.
That's what works for me, YMMV.