Why does Lightroom only recognise my lens after I set the make?

Question

I have a Tamron 70-300 and use Lightroom 5. When I process photos taken with any of my other lenses, and enable Lens Correction, Lightroom automatically detects the lens make and model. However, when I process photos taken with the Tamron, it doesn't. I have to select the make, and _then_ it automatically recognises the focal length etc.Why is this and can anything be done about it? As far as I can recall it did this in LR 4 as well.

Answer 1

It's probable that Tamron didn't make the lens's profile available to Adobe at the time your version of LR was released. There might have been, however, some other Tamron profiles that LR recognized and the program assumed a generic profile for your lens. Here's a link to the available profiles in the Adobe system, including the possibility of creating your own custom profile:

https://helpx.adobe.com/camera-raw/kb/supported-lenses.html