Thanks for the quick answer and that pointer to the detailed EXIF resource!

I hope this is the correct forum for this question - apologies if not.

I have recently bought a K-3 with 18-135mm, 100mm macro and WR 55-300mm lenses. The first two are automatically recognised by the K-3 as their details are supplied in the EXIF details of photographs in which they are used. But the 55-300mm (HD PENTAX-DA 55-300 mm F4-5.8ED WR) isn't. This is annoying in general, but specifically it means that applying lens correction in Lightroom is more difficult.

Is there a way I can fix this, or does it need Pentax to correct this in firmware?

Many thanks,
Richard