Re: gPhoto2 - Bulb Capture Not Working | Nikon D5100

Hi Marcus.

I tested again and yes the shutterspeed support Bulb mode but when I do
Bulb capture then gPhoto reports "*bulb not found in configuration tree*".

May be in Nikon D5100 USB Bulb not supported? Can you advise?

root@cubie:~# gphoto2 --get-config shutterspeed
Label: Shutter Speed
Readonly: 0
Type: RADIO
Current: Bulb
Choice: 0 0.0002s
Choice: 1 0.0003s
Choice: 2 0.0004s
Choice: 3 0.0005s
Choice: 4 0.0006s
Choice: 5 0.0008s
Choice: 6 0.0010s
Choice: 7 0.0012s
Choice: 8 0.0015s
Choice: 9 0.0020s
Choice: 10 0.0025s
Choice: 11 0.0031s
Choice: 12 0.0040s
Choice: 13 0.0050s
Choice: 14 0.0062s
Choice: 15 0.0080s
Choice: 16 0.0100s
Choice: 17 0.0125s
Choice: 18 0.0166s
Choice: 19 0.0200s
Choice: 20 0.0250s
Choice: 21 0.0333s
Choice: 22 0.0400s
Choice: 23 0.0500s
Choice: 24 0.0666s
Choice: 25 0.0769s
Choice: 26 0.1000s
Choice: 27 0.1250s
Choice: 28 0.1666s
Choice: 29 0.2000s
Choice: 30 0.2500s
Choice: 31 0.3333s
Choice: 32 0.4000s
Choice: 33 0.5000s
Choice: 34 0.6250s
Choice: 35 0.7692s
Choice: 36 1.0000s
Choice: 37 1.3000s
Choice: 38 1.6000s
Choice: 39 2.0000s
Choice: 40 2.5000s
Choice: 41 3.0000s
Choice: 42 4.0000s
Choice: 43 5.0000s
Choice: 44 6.0000s
Choice: 45 8.0000s
Choice: 46 10.0000s
Choice: 47 13.0000s
Choice: 48 15.0000s
Choice: 49 20.0000s
Choice: 50 25.0000s
Choice: 51 30.0000s
Choice: 52 Bulb
END
root@cubie:~# gphoto2 --set-config bulb=1 --wait-event=5s --set-config
bulb=0 --wait-event-and-download=2s

*** Error ***
bulb not found in configuration tree.
Waiting for 5 seconds for events from camera. Press Ctrl-C to abort.

*** Error ***
bulb not found in configuration tree.
Waiting for 2 seconds for events from camera. Press Ctrl-C to abort.
root@cubie:~#

Thanks.

Regards.
Nazmus Sakib.


On Sat, May 16, 2020 at 7:12 PM Marcus Meissner <[email protected]> wrote:

> Hi,
>
> On Sat, May 16, 2020 at 06:10:14PM +0600, Nazmus Sakib wrote:
> > Thanks.
> >
> > But my Shutter is already in Bulb in Nikon D5100.
> >
> > root@cubie:/home/linaro/gphoto# gphoto2 --get-config shutterspeed |grep
> > Current
> > Current: Bulb
> >
> > However, I think in Nikon D5100 is it possible to do Bulb Capture by USB
> > ... is it right?
> >
> > Also in Canon 6D the Bulb Capture works but I am facing problem in
> > Exposure Time. I am used below command to set exact Exposure Time 3.8s.
> >
> > gphoto2 --set-config eosremoterelease=Immediate --wait-event=3.8s
> > --set-config eosremoterelease="Release Full" --wait-event-and-download=2s
> >
> > But when checking the Exposure Time on Camera as well as using ExifTool
> its
> > 2.9s FYI, debug log attached.
> >
> > Any advise in this regard please?
>
> --wait-event=XXXs  only supports "full" seconds, not fractional ones
> currently, so --wait-event=3.8s waits for 3 seconds.
>
> Use --wait-event=3800ms   as workaround here.
>
> As for Bulb mode... If the Nikon shutterspeed can report bulb it should
> work.
>
> Ciao, Marcus
>

_______________________________________________
Gphoto-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/gphoto-user