Sigma 30mm f/1.4 Review
It is slower than I thought. I've missed shots that my 18-200VR would have auto focused and captured because of its lack of speed. The auto focus is a lot noisier than I expected too. Makes a lot of clicking noises during auto focus.
Has difficulty focusing at f/1.4 on auto focus while set to a single focal point with manual aperture and priority. [Using the Nikon D80] Takes great portraits and zero chromatic aberration. The 30mm is very nice to have instead of the 50mm for indoor shooting. Wide lens and looks awesome. It has a heavy, solid feel when you hold it. The lens uses a 62mm filter, which is easy to find. Insanely awesome Depth of Field and beautiful star effect at high aperture on lights.
For what I paid, I expected a little bit more from it, but I am still enjoying it and don't regret the purchase. I also like the lens more than the Fifty Nifty (50mm f/1.8 Nikkor) I sold to pay for this lens.


