It's a bit of a pain but can't you input the FL yourself in the camera when attaching them. At least you can then identify them in LR.
Kierzkow wrote:
Is there is a way to capture the name of the Contax C/Y lens and/ or
the focal length used on the A7R + Novoflex? I have six C/Ys so it
can get a bit confusing when 50-60 shots get transferred to the Lightroom.