I'm looking to upgrade from my kit lens and was looking for something handholdable in low light. Camera is Xsi.


Whichshould be better? The 17-55 2.8 IS or the 50mm 1.4.


Does the IS make up the difference in aperture?


I'm not too worried about stopping action just which will allow me to handhold for cityscapes at nightetc. I'll also want to use the lens as a general pupose lens.


Also would the depth of field be too shallow for general street shots?


Thanks in advance


Jake