Originally posted by Garry Conway I,ve done some photos using astro tracer on K1 with FA 28-105, f 17-28 fisheye and while the fisheye worked well I prefer the non-fisheye look. At 28mm on the K1 I got some nice shots but I'm looking for something wider, right now I'm looking at a Sigma 20mm f1.8 EX DG or a tamron 17-35 dg f2.8-4 can't decide so I'd be interested in hearing from "peeperberry farm" about the Sigma 20mm. I want a good all arounnd landscape lens that will work well for astro as well.
I am finding that I have to cleanup the purple fringing in some of the older lenses.
I have decided to purchase a Tamron or Sigma 17-50 f/2.8, based upon the following:
1. I have a Tamron 28-75, and that's not quite wide enough for astro.
2. I want something that doubles as a good indoor lens for sports events (TKD - close-up), and these fit the bill.
3. The rating of the Sigma and Tamron surpasses any of it's closest competitors.
4. I can get it for a decent price, depending upon which one I get and when.