Choosing my next Canon lens

Need lens-buying advice from Canon photography nerds.

The Mrs. and Me are starting to really dig taking photos again – she with a Rebel XT and me with a 30D. We currently share joint custody of 1) the XT’s standard 18-55mm zoom (blech) and 2) the glorious and much-loved 50mm f1.4 (yay!).

So, let’s say, hypothetically, a fella wanted to pick up a new Canon lens to add to these two cameras’ modest arsenal. If we wanted a fast, flexible lens (that would mostly get used for baby picture-taking), what would you guys recommend? Possibly a higher-end, faster zoom?

The EF-S will work on both as well (but not full frame cameras)

I remember I loved the ultra-wide 10-22mm EF-S lens, as well as the 17-85mm EF-S lenses. Both lenses are made for the smaller sensors only (they won’t work on your eventual 5D upgrade), but that makes them fairly cheap ($500-800 range). The whole EF-S line is pretty good and affordable compared to the L series.

Ever since I moved up to a 5D, I’ve now got the following: 17-40mm L lens for wide room shots 50mm 1.4 same as you got 28-105mm general outdoorsy lens

I find myself using the 17-40 the most, with 50mm being a close second. You might want to consider maybe buying an external flash you can bounce off the ceiling (a 430ex for $200 or so is good enough) to get better indoor shots that don’t have the deer in the headlights look but also are sharper than natural light.