After a bit of debugging, I managed to get shutterspeed2 working with my Nikon Z8!
https://github.com/weegreenblobbie/libgphoto2/compare/81904a36a2a64e1f6005199ef9193db70e1fc444...8ccf7153f4e95e71c17cd83e19ddbb4e46353cff It turned out to be a 32-bit property, unlike the 8bit properties like the other nikon props. I'd like to add some documentation steps somewhere too for how I figured this out. Mostly a process of producing and reading the debug log carefully: rm -f my-logfile.txt; env LANG=C bin/gphoto2 --debug --debug-logfile=my-logfile.txt --list-all-config I'll see about adding support for a few more nikon specific properties and/or values for the Z8 to be on par with the Z7. -Nick gphoto2 --get-config shutterspeed2 Label: Shutter Speed 2 Readonly: 0 Type: RADIO Current: 1/1000 Choice: 0 1/6400 Choice: 1 1/4000 Choice: 2 1/3200 Choice: 3 1/2500 Choice: 4 1/2000 Choice: 5 1/1600 Choice: 6 1/1250 Choice: 7 1/1000 Choice: 8 1/800 Choice: 9 1/640 Choice: 10 1/500 Choice: 11 1/400 Choice: 12 1/320 Choice: 13 1/250 Choice: 14 1/200 Choice: 15 1/160 Choice: 16 1/125 Choice: 17 1/100 Choice: 18 1/80 Choice: 19 1/60 Choice: 20 1/50 Choice: 21 1/40 Choice: 22 1/30 Choice: 23 1/25 Choice: 24 1/20 Choice: 25 1/15 Choice: 26 1/13 Choice: 27 1/10 Choice: 28 1/8 Choice: 29 1/6 Choice: 30 1/5 Choice: 31 1/4 Choice: 32 1/3 Choice: 33 1/2.5 Choice: 34 1/2 Choice: 35 1/1.6 Choice: 36 1/1.3 Choice: 37 1 Choice: 38 1.3 Choice: 39 1.6 Choice: 40 2 Choice: 41 2.5 Choice: 42 3 Choice: 43 4 Choice: 44 5 Choice: 45 6 Choice: 46 8 Choice: 47 10 Choice: 48 13 Choice: 49 15 Choice: 50 20 Choice: 51 25 Choice: 52 30 Choice: 53 60 Choice: 54 90 Choice: 55 120 Choice: 56 180 Choice: 57 240 Choice: 58 300 Choice: 59 480 Choice: 60 600 Choice: 61 720 Choice: 62 900 Choice: 63 Bulb Choice: 64 Time END On Sun, Jul 6, 2025 at 3:25 PM Nick Hilton <weegreenblobb...@gmail.com> wrote: > Hello! > > I'm new to libgphoto2 development. I'm interested in adding shutterspeed2 > for the Nikon Z8, I have a Z7 mark I, which does support shutterspeed2. > > Looking at the code here > <https://github.com/gphoto/libgphoto2/blob/81904a36a2a64e1f6005199ef9193db70e1fc444/camlibs/ptp2/config.c#L11886> > for the Z7, looks like it's using nikon_z6_capture_settings, so is the Z8. > I've tried adding a custom nikon_z8_capture_settings menu item here > <https://github.com/gphoto/libgphoto2/compare/master...weegreenblobbie:libgphoto2:dev/nikon-z8-shutterspeed2>. > I've built the lib and the gphoto2 cli utility, verified it's linking with > my local build: > > ldd gphoto2 | grep libgphoto > libgphoto2.so.6 => > /home/nhilton/development/pycontrol/external/lib/libgphoto2.so.6 > (0x00007275d35f8000) > libgphoto2_port.so.12 => > /home/nhilton/development/pycontrol/external/lib/libgphoto2_port.so.12 > (0x00007275d35e8000) > > However I don't see any indication my updates are having any impact. > > I had looked at previous commit changes sets that added various nikon > cameras, and it looked similar to what I did, however it's not working. > Not really sure how to proceed. > > Is there any documentation on how config.c is organized that I missed? I > own the following camera and can test the changes necessary: z6ii, z6iii, > z7, z8. > > Thank you! > Nick > > >
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