Can anyone advise on which focal length to use when tracking footage shot with a cropped sensor DSLR?
Specifically, I have shot 1080p footage on my Canon 60d with a canon 50mm prime.
The CCD/film gate size is 22.3mm x14.9mm, but it has a crop factor of 1.6.
So, should I use a focal length of 50mm or the crop factor equivalent of 80mm?
Any help/clarification would be great.
Thanks!