Am Dienstag, 30. Mai 2017, 21:14:04 CEST schrieb Аl Воgnеr: > http://lensfun.sourceforge.net/lenslist/ lists eg > > smc Pentax-DA 21mm f/3.2 AL Limited > > which is an older model, the newer one is > > HD PENTAX-DA 21mm F3.2 ED AL Limited > > AFAIK the main difference is glass coating, a.s.o, but not the lenses > itself. > > So is it possible to create an alias-lensname? It is a lot of work, to > choose the lens manually everytime. > > There are a lot of other Pentax lenses with smc vs. HD.
I can think of two ways: - https://houz.org/posts/2016/10/07/using-a-samyang-14mm-in-darktable/ describes how to change the metadata dt sees for images. Quite a dirty hack. - New versions of libexiv2 support aliasing the lens as described here: http://dev.exiv2.org/issues/1241 Both approaches would make the lens look like the old model known to lensfun. If that's not what you want you can probably still create a copy of the lens entry in lensfun. > Al Tobias
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