I went and gave my Tamron 11-18 a try
Also used the 50mm fixed and the 70-300 IS Canon

I learnt a couple of things...
1. I NEED to get my camera in for a clean pronto
2. Adobe Lightroom's spot removal feature rocks!

Let me know what you guys think, the Tripod was shaking like a leaf so most shots are blurry.

All 32 can be viewed HERE