i shoot sony alpha mount dslr's. metadata display lr 4.1 images shot both sigma , tamron lenses display incorrect lenses. e.g., sigma 20mm f/1.8 identified "100-300mm f/4.5-5.6", tamron 28-75 f/2.8 "24-105 f/3.5-4.5", tamron 90mm macro "100mm f/2.8", , sigma 400mm f/5.6 telemacro identified "75-300 f/4.5-5.6.
a similar complaint native sony lens. sony zeiss 24mm f/2 identified a850 "24mm f/2.0 za ssm", while a77 reports same lens "24mm f/2 za ssm".
i've been accustomed lr missidentifiying lenses time, i've learned paint shop pro, corel product, corectly identifies 3rd party lenses mounted on sony dslr's.
this apparantly possible lens type value translation exif value "25". (pasted post robertsmx @ dyxum forum thread: http://www.dyxum.com/dforum/exif-lens-reporting-incorrect-data_topic46107_page10.html)
lens type value translation (exif tool):
25 = minolta af 100-300mm f4.5-5.6 apo (d) or sigma lens
25.1 = sigma 100-300mm f4 ex (apo (d) or d if)
25.2 = sigma 70mm f2.8 ex dg macro
25.3 = sigma 20mm f1.8 ex dg aspherical rf
25.4 = sigma 30mm f1.4 ex dc
25.5 = sigma 24mm f1.8 ex dg asp macro
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