Sunrise on Queen Street -- Canon T2i & Tamron Adaptall 28mm f2.5
The Tamron Adaptall 28mm f2.5 lens is very small. It's almost like a pancake lens. The front element is tiny for a lens with f2.5 maximum aperture. Quite well made but the front edge is very easy to dent. One of the most common Adaptall lenses and you should be able to find out easily and cheaply.