Originally posted by figmental1978 Does the 40 ltd take decent portraits, isn't it a little too wide?
At "normal" portrait shooting distance, sure, 40mm includes more background than one would "normally" want for a portrait. But for babies, actually, you might prefer to take portraits from closer up. Seems I've seen many done that way. So 40mm could work. It's also a really nice length for candids that show a person in his/her surroundings, and for portraits involving two people (mother & daughter?).
Frankly, though, given you'd also want longer focal lengths for more traditional portraits, and shorter comes in handy at times too, I'd probably choose the Tamron 28-75 if I were in your shoes. Although given that this is *really* supposed to be for your wife, I'd also be strongly looking at the Panasonic LX3 - yes, a P&S, but one capable of taking some excellent pictures and would probably make your wife much happier than any lens you might mount to a DSLR.