EF-S 15-85 f/3.5-5.6 is usm vs. EF 24-105 f/4 L on 7D

[BuddyO]

I'm not sure why so many people are shooting FF normal zoom on APS-C bodies. To me the range is just not right; 24mm is considered wide on a FF, but on a APS-C it's like a 40mm on a FF which is rather narrow, and to me does not qualify it as a general purpose zoom.

It depends on the use. I've got the 24-105 on my 50D and I find the range perfect for vacation pics and outdoor family events.


For indoor events, it can be a little tight, so I just back up a bit.

Are 300$ more a good investment for a L lens such the 24-105? Does the build quality, weather sealing, zoom/focus ring construction, IQ worth $300?

For me, the money I spent on the 24-105 was worth it. Given the build quality, the useful range, and the outstanding IQ, I plan on keeping these lens for as long as it lasts. And I expect that to be a very long time, since I take good care of it.

[neuroanatomist]

It depends on the use. I've got the 24-105 on my 50D and I find the range perfect for vacation pics and outdoor family events.


For indoor events, it can be a little tight, so I just back up a bit.

...which is fine, until your backing up backs you into a wall, and you still need wider framing. That's why I find the EF-S 17-55mm f/2.8 IS USM ideal for most uses (the extra stop helps indoors, too!).