Hi all I have a 50d with the tamron 17-50 f2.8. Looking to get a lens with more reach. Trying to decide should I keep that lens and buy the 24-105L. Or sell it and buy the 15-85? Have heard some bad things about the 24-105 lens. I do plan on getting a 5D with in the year. So thats why I'm leaning to the 24-105. But it does have a pretty high price tag. Any other lens out there that will have close to same sharpness as the L lens? Or what would you guys suggest. Thanks Oh I also have the 70-300 and a 50mmf1.8
