Originally posted by: teatime0315
Originally posted by: jpeyton
Are you going to stick with a DX camera for the near future?
You're trading two full frame lenses for a DX lens (albeit an awesome one).
I think i'm going to stick with DX for a while. I currently have a D80 and a possible future upgrade would be either the d300 or d400 whenever that comes out.
Is the Nikkor 17-55 f/2.8 really THAT good of a lens, optically speaking? Having read the reviews, I'm lead to believe that it's not quite worth its price tag. Unlike it's Canon counterpart, the EFS 17-55mm IS, the Nikkor lacks IS and is not quite as sharp. The one thing it really has going for it is tank-like build quality, but unless you need a lens that you can use for self-defense why not just sell your macro and buy a Tamron 17-50 f/2.8 plus Tamron 90mm f/2.8 Macro?
You can find mint used copies of the Tamron 17-50 for around $300-350, and similarly good copies of the 90mm f/2.8 Macro for as little as $225-250. Both lenses are well known to be quite sharp.
Just for your reference, I looked up the Photozone reviews for the Nikon and Tamron and here are some comparisons:
Distortion:
17mm: Nikkor-2.19%, Tamron-2.7%
24mm: Nikkor-0.24%, Tamron-0.06%
Vignetting @ f/2.8
17mm: Nikkor-1.21 stops, Tamron-1.4 stops
24mm: Nikkor-0.83 stops, Tamron-1.24 stops
50/55mm: Nikkor-0.75 stops, Tamron-1.27 stops
Resolution @ 17mm, f/2.8
Center: Nikkor-2114, Tamron-2157
Border: Nikkor-1759.5, Tamron-1836
Extreme border: Nikkor-1565, Tamron-1751.5
Resolution @ 24mm, f/2.8
Center: Nikkor: 2028.5, Tamron-2087
Border: Nikkor: 1699, Tamron-1825
Extreme border: Nikkor: 1345, Tamron-1697.5
Resolution @ 50/55mm, f/2.8
Center: Nikkor: 1952, Tamron-2055
Border: Nikkor: 1560.5, Tamron-1815.5
To me it doesn't seem that the Nikkor is a better buy than the Tamron, especially at 3 times the price. The Nikkor is definitely built better and has faster AF, but it's much heavier and optically it's actually slightly worse than the $350 Tamron...