How is it that Lightroom 3 sees the data form my Canon 5D MKII as a 1Ds MKII?Thank you.
The actual camera isn't relative...just the sensor crop size. As far as the lens profile is concerned, the 5D II and 1Ds MII are the same size sensor. The camera name in the profile is simply informational related to what camera the lens was tested on but will have no impact on it's use.