TimStir

Lives in Switzerland Lausanne, Switzerland
Works as a PhD Student
Joined on Jun 11, 2008

TimStir's recent activity

  • Thanks for the review. A little disappointing if it is noticeably softer than the sigma although that is a hard target to meet. I was hoping for like 95% as good wide open f/1.8 vs f/1.4 and equal ...
  • And why do you think sigma would design a lens differently? You can be sure Sigma aimed for wide open performance, especially since the lens was even slower so people wouldn't want to stop down.
  • If you want to be hand holding a majority of the time and 500mm is long enough, then I think without question the Nikon 200-500mm is the best bet> 1) lighter, so easier to hold for longer, and ...
  • TBH: I'm not 100% sure the Sigma sport IS sharper, but i think it looks very likely that the Sigma Sports at 600mm will happily capture more detail than the Nikon at 500mm and further more, the ...
  • Thanks, that is kind of what I was expecting. As nice as the 200-500m is at the price, it just isn't enough extra reach/resolution o make it worth it over the 300mm PF + 1.4xTC.
  • Yep, and add a 600mm f/5.6. these are lenses not in Nikon's line up, and although canon has a 400mm f/5.6 it is very old and the f/4.0 is a very expensive Do option. Making teles 1 stop slow than ...
  • Volume pricing is not alien to Nikon. the problem is probably related to supply. I saw somewhere that it takes something like 18 months to grow the crystal glass for the front element of the 600mm ...
  • Unrealistic price, expect something more like $4000-5000 minimum. The weight also, tamron wont have the exotic glass experience to make a lighter lens than the new Nikon some of the trade-offs ...
  • Do you have any good links to show that the Sigma S is sharper? I'm in the same boat as OP, finding it tough to choose between them. I think I am swaying to the Sigma because I have the 300mm PF + ...
  • I'm in the same situation, but what pushes me to the Sigma is I have a 300mm PF + 1.4xTC, so the smaller lighter requirements are already fullfilled. My concern with the Nikon is 420mm vs a zoom ...
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Last upload May 20, 2011