Ordering photos by Focal Length "mm" in Lightroom 2

[hot-fuzz]

Hello all,

Im doinga bit of research into my focal length and find out if i use the 70-105 range of my 24-105 for obvious reasons.
I know you can order your photos in the library to only disply those taken with different lenses, ISO, Aperture etc, but cant find how to see all those take with a certain focal length.

Can it be done ??

If not is there a way of doing this ??

Ta

[hot-fuzz]

********,

no sooner have i asked the question i found a thread on here to answer it.

Sorry.