Fred Miranda wrote: scalanc2 wrote:
65 is not fixed still showing Voigtlander 65 instead.
Couldn't they fix this in a minute? I'm sure C1 has been receiving reports on this. What's taking so long? Same for the Voigtlander 35/2 APO showing as Loxia.
Yeah it's weird.
There are many EXIF fields associated with the lens; LensModel, Lens, and LensID amongst them.
Manufacutuers aren't always consistent with which fields they use...
Lens Model EXIF field is perhaps the most reliable, but not always.
Lens Info sometime has name, sometimes just focal length and aperture.
Lens ID is a derived field, maybe based on Lens Model, or ors other stuff?
There are Maker Notes fields which are relevant too:
Lens Type2 for instance, tends to be where CV puts lens names recently.
Sometimes Lens Type has the name too, sometimes garbage.
So here's my guess: because of this randomness, early on the CV developers decided to have their own database of lens names, and use specs to pick the lens. It was a bad idea, because eventually there would be many lenses with the same spec, and it required them to update their own database. But I can see how it may have been tempting early on.
But now it really has to change, just read all the relevant fields, and have an algorithm to guess the most likely real name. I'll bet that's what Adobe does (or maybe they know, for each brand and era, which field is the reliable one. Also not hard.
