<p>My daughter has been getting more serious about photography and I would like to get her a nice mid-range zoom for Christmas. She has used my Nikon 18-135mm in the past, but I would like to get her something a little faster at the long end with very good image quality. She has a Nikon D90 and is currently using my Nikon 17-55mm f2.8 to supplement her 50mm f1.8. She mostly shoots mtn bike racing, but also likes shooting friends and family, along with some travel photography. I would like to keep the cost under $1000. This is what I'm considering so far:</p>
<p>Nikon 24-120mm f4, I can get one used for $600, Refurb. for $700<br>
Sigma 24-105 f4, $899 but hard to find in stock<br>
Tamron 24-70mm f2.8, used or grey market for about $900<br>
Nikon 24-70mm f2.8, would be hard to find used in my budget, but I recently picked one up used for $1100</p>
<p>Any thoughts on these options or should I be considering something else?</p>