Hellriegel thanked Jasem Mutlaq in topic libgphoto2 PPA 2 weeks ago
Hellriegel replied to the topic 'TIS DMK21AF04 (firewire camera) - functional in INDI?' in the forum. 2 months ago

No, I have not got the Firewire cam to work using video4linux (v4l2). From what I found in the internet there is no support for this camera in v4l.
However, using Coriander as standalone application I managed to capture planetary video streams in Kubuntu.
For EKOS integrated functions such as guiding I instead use a QHY Cam.

CS
Michael

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Hellriegel created a new topic ' TIS DMK21AF04 (firewire camera) - functional in INDI?' in the forum. 3 months ago

Has anyone a working installation of a firewire camera? Specifically using the above mentioned DMK21AF04?

The camera is functional (Kubuntu 16.10, kstars-bleeding, last update) using the Coriander Software . Coriander receives the raw video frames, displays and saves them to a predefined directory.
However, trying to propagate the video stream (in coriander) to video4linux fails with

Error: unable to open device. VIDIOC_QUERYCAP error 25, Inappropriate ioctl for device

The same error appears when trying to connect to the DMK21AF04 in EKOS.
I don't think it is an INDI specific problem, so I don't add any log files. ;-)

If anyone has a working installation I would appreciate any hints on what to try.

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Hellriegel thanked Jasem Mutlaq in topic Use two DSLR 4 months ago
Hellriegel thanked gehelem in topic Forum appearance 6 months ago
Hellriegel replied to the topic 'Problems/questions testing EKOS with Sony a7s' in the forum. 7 months ago

The ISO issue is a bug in gphoto. It happens when the ISO value is to be set to the current value in the camera. Same problem exists with shutter speed.
A colleague of mine and I came across these (and other) bugs when further testing the two Sony cameras (A7S and A7II) we have access to.
Presently I am working on a bash script to preconfigure all necessary config settings for deep sky photography such as exposure program, aspect ratio, focus mode, capture mode, image size, image quality etc. (This is to save me time at the telescope trying to figure out why the heck the camera does not work as expected! ;-) )

Code corrections for ISO, shutter speed and aspect ratio settings (the latter reported wrong from gphoto) already have been sent to the gphoto maintainers. They will be implemented in gphoto version 2.5.12 (or may be in 2.5.13).

Only problem for plain KStars/INDI users will be to get a most recent version compiled. IIRC the momentary version of gphoto2 with (K)Ubuntu is 2.5.9.

@amuro1977
We are also addressing the problem of changing shutter speed back from bulb to values equal/shorter than 30 secs. This will help You (us) with taking bias frames.
And we are expecting life view option with the Sonys soon: github.com/gphoto/libgphoto2/issues/123
Wow, this is going fast! Just read in the above thread "todays git now has sony live view support thanks to @elijahparker". If I understand correctly this is supposed to work for all A7x (Mark 1 and Mark 2).

Who can supply us with a gphoto version from the lastest git ?
CS
Michael

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Hellriegel thanked Andreas in topic Lacerta MGEN support? 7 months ago
Hellriegel replied to the topic 'Problems/questions testing EKOS with Sony a7s' in the forum. 8 months ago

So, if I understand, with the actual informations is not possible to take bias and flat using only ekos: It is necessary to use camera to exit from bulb mode. Correct?
If You start with lights that would be correct.
I will intent to follow this procedure:
start exposure time at 1/8000 and lowest ISO, take bias frames and flats, then change shutterspeed to bulb to take lights (and eventually darks).

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Hellriegel replied to the topic 'Problems/questions testing EKOS with Sony a7s' in the forum. 8 months ago

I have to correct my information about the data the Sony A7S returns after a "--get-config shutterspeed"
The Sony A7S returns the same information as the A7II: only the current shutter speed setting! The values in the list were read from the camera display after being set manually and then confirmed that
gphoto2 --camera="Sony Alpha-A7S (Control)" --set-config shutterspeed=nnn
would set the correct speed.
However, setting the shutter speed to an "undefined" value will cause the Sony A7xx to automatically step through the list of defined values and set the shortest (1/8000) or longest (bulb) shutter speed depending whether it has to change the shutterspeed "up" or "down" from the current value.
.
This behaviour is different from the one my Canon D1100 shows when trying to set an undefined shutter speed:
Values between 1 and 52 that are not defined as exposure time (in s) are interpreted as a --set-config-index value and the corresponding shutter speed is set (i.e. 27 gives 1/13s). The Canon returns an error -1 when trying to set to an undefined value such as 55 or 1.2s

All said refers to gphoto2 version 2.5.10. I have no idea whether there are improvements concerning the Sony A7xx in version 2.5.11
But may this information helps to cancel out some possible misbehaviour in EKOS. ;-)

CS
Michael

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Hellriegel replied to the topic 'Problems/questions testing EKOS with Sony a7s' in the forum. 8 months ago

With a "Sony ILCE-7M2" and using gphoto version 2.5.10 we get the below result
LANG=C gphoto2 --get-config shutterspeed
Label: Shutter Speed
Type: RADIO
Current: 300/10

However the same command for the "Sony A7S" presents the list of possible exposure times:
gphoto2 --camera="Sony Alpha-A7S (Control)" --get-config shutterspeed
Label: Shutter Speed
Type: RADIO
1/8000
1/6400
1/5000
1/4000
1/3200
1/2500
1/2000
1/1600
1/1250
1/1000
1/800
1/640
1/500
1/400
1/320
1/250
1/200
1/160
1/125
1/100
1/80
1/60
1/50
1/40
1/30
1/25
1/20
1/15
1/13
1/10
1/8
1/6
1/5
1/4
1/3
4/10
5/10
6/10
8/10
10/10
13/10
16/10
20/10
25/10
32/10
40/10
50/10
60/10
80/10
100/10
130/10
150/10
200/10
250/10
300/10
bulb

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