In the Pentax system, the lens doesn't report a readable name to the camera, but reports a couple of unique numbers that are recorded in the EXIF. Your software then has to be updated to map those numbers to the user-readable name of the lens. According to this page: https://helpx.adobe.com/camera-raw/kb/supported-lenses.html#Pentax support for the 28-105 was added in Camera Raw 9.6. Do you have at least that version?
Actually, I'll answer my own question... I used Jeffrey's EXIF viewer: http://exif.regex.info/exif.cgi on your (lovely) recent photo: http://www.markcassino.com/b2evolution/media/blogs/calarti/2017/17-07-09/mccp8125_tu2.jpg?mtime=1499635572 and the EXIF dump says you're using Camera Raw 9.1.1, so that's why it can't decode the lens code. If you look at Jeffrey's EXIF dump, near the top, you'll see "Lens: 8 61". Those are the two numbers that identify the lens. So Jeffrey's library (exiftool or something?) doesn't properly decode it either, but the field is being populated by the lens and camera--it doesn't look like a malfunction to me. On Mon, Jul 10, 2017 at 10:35 AM, Mark C <[email protected]> wrote: > I just noticed that my DFA 28-105 f3.5-5.6 does not show up in EXIF data. > I've tried it on the K1 and the K3 and in both cases when I view file info > in Photoshop the lens field in blank. I noticed this because uploads to > flickr with this lens also do not show any lens data. I tried a couple > other EXIF viewers with the same result. Both cameras correctly record lens > data for other lenses. > > There are images on flickr that show this lens in the EXIF data (e.g. > Larry's photostream)... It appears that my specific copy though is not > producing EXIF info. I'm wondering if this is something to be concerned > about WRT my copy of this lens? Aside form this, it has been operating > perfectly. > > Any thoughts? > > Mark > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
