I've recently been shooting in raw with my new 100mm usm is macro but I'm getting strange results in out of focus areas with bright colours in. I've used Lightroom for ages and not had any issues with it but it's not giving me the results I'd expect, over saturated with what I'd describe as colour bleed. I gather that the camera and the eos utility might be showing me some sort of preview, but they look very different!
The first screenshot is what the canon eos utility v2.9 shows me (and the same in camera) and gives me the bokeh I'd expect from a lens like this.
The second is what lightroom 3.3 shows me without any developing done. I've reimported with settings reset, and copied over with adobe bridge and photoshop and had the same results. This is with lens corrections off.
Don't ask why the filenames appear to be different between the screenshots, I assure you they're the same photo.