Quote:
Originally Posted by Rod771
The Tokina 11 - 16 F2.8 lens would be great for nightscapes on the crop sensor.
Its on my shopping list 
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Its a good lens
http://farm8.staticflickr.com/7366/8...2d8f3ffa_h.jpg
If you decide to upgrade to FF then it will only work around 16mm as it is solely designed from crop sensor. I picked up my 7D last September for $1500. They are now less than $1000 in the high street. For another $500 I could have picked up a 6D. Sorry I didnt wait a few more months. 7D is still a great camera though as are the 650Ds.
I use the Tokina 11-16mm and Sigma 50mm F1.4 for astro work and daytime work. I am looking for a general purpose lens now-probably the Canon 35-105 to fill the gap.