×

INDI Library v1.9.9 Released (30 Nov 2022)

Bi-monthly INDI Library released with new drivers and bug fixes.

Ekos Optical Trains

  • Posts: 753
  • Thank you received: 69

Replied by maxthebuilder on topic Ekos Optical Trains

Optical Trains work OK for me.
But I did have a problem trying to set up a DSLR Lens - it didn't worked right for me so I ended up setting it as refractor (which worked fine).
Max S.

RPI 4 B (4Gb) with SMate
Askar FRA400, TPO RC6, Nikon D5500 full spectrum (with IDAS D1 clip-in filter).
ASI2600MC Pro
ZWO ASI120MM Mini on ZWO 30F4
ZWO ASI224MC-S on Orion 50 mm f/3.2
ZWO EAF x 2
SW AZ-GTi
SW HEQ5
RST-135
iOptron CEM40G
3 months 1 day ago #87643

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic Ekos Optical Trains

I found one issue where it saves the effective field of view in the database and it wasn't considering focal reducer. This could lead to some issues. It is now fixed in KStars 3.6.2
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
The following user(s) said Thank You: R Dan Nafe
3 months 1 day ago #87644

Please Log in or Create an account to join the conversation.

  • Posts: 87
  • Thank you received: 1

Replied by Robert Miller on topic Ekos Optical Trains

Bingo.

Last night I put the scope on a well populated star area to do a plate solve. The parameters in the "Plate Solving" tab (FL, FOV of guide camera, etc) were as one would expect without a focal reducer. The value of the focal reducer (0.7) was also displayed.

Attempted a plate solve and it failed. Got the usual error message.

I tried to change the aperture and FL parameters, but they were locked. The software would allow me to change the guide camera FOV to reflect the FR. Attempted another plate solve: success. I went to another tab and when I came back to the plate solve there were parameters just like yours where it looked as if the software applied the FR in the wrong direction. However, the guide camera FOV was now correct. I did another plate solve just for verification.

I see Jasem says he has it fixed in the latest build so we can try it out.

Bob
3 months 1 day ago #87650

Please Log in or Create an account to join the conversation.

  • Posts: 145
  • Thank you received: 14

Replied by Bernd Limburg on topic Ekos Optical Trains

Is it possible to implement considering the focal reducer factor in 3.6.1 stable as well?

Thx, Bernd
254/1450 mm Newton, 130/730 mm APO, 70/336 mm APO, EQ6-R, ZWO EAF focusers, DeepSkyPro 2600c, ASI183MM, Intel NUC 8i5, Ubuntu 22.04
3 months 14 hours ago #87683

Please Log in or Create an account to join the conversation.

  • Posts: 3
  • Thank you received: 0

Replied by khaane kii on topic Ekos Optical Trains

I've attempted some plate solving recently with the FR and I always get the "Not Enough Stars in the Picture" and "check FOV data" even when there are lots of stars in the frame. This function worked fine before I added the FR.
2 months 4 weeks ago #87736

Please Log in or Create an account to join the conversation.

  • Posts: 3
  • Thank you received: 0

Replied by khaane kii on topic Ekos Optical Trains

I've attempted some plate solving recently with the FR and I always get the "Not Enough Stars in the Picture" and "check FOV data" even when there are lots of stars in the frame. This function worked fine before I added the FR. teatv.ltd/teatv download
hellodear.in
Last edit: 1 month 3 weeks ago by khaane kii.
2 months 4 weeks ago #87737

Please Log in or Create an account to join the conversation.

  • Posts: 47
  • Thank you received: 6

Replied by Tracy Perry on topic Ekos Optical Trains


Apparently there is a bug in the system. If you set your telescope FL correctly in telescope definition area, then in the optical train add the focal reducer, it dose not "do the math" and give the correct focal length. You have to set the focal length WITH the reducer factored in the telescope definition field. In my case, instead of setting 710mm and a reducer of 0.8 and getting around 586mm, I have to set the telescope at 568mm. Jasem is aware of the issue and there should be a fix pushed out in a few weeks to the new version.
A beginner trying to find their way.
Astro What? - my home away from home.
Last edit: 2 months 3 weeks ago by Tracy Perry.
2 months 3 weeks ago #87986

Please Log in or Create an account to join the conversation.

  • Posts: 5
  • Thank you received: 1

Replied by hamish barker on topic Ekos Optical Trains

Apparently DATE-OBS field is not being populated in fits files. I've heard this from another spectroscopist.

I have been using indi/kstars/ekos for several years for astro spectroscopy, where the platesolving camera via flip mirror is separate to the spectro camera which is never platesolving as it only sees the slit spectroscopy images through the spectrograph.

Not including DATE-OBS is a total deal breaker as the isis spectroscopic reduction software commonly used by amateur spectroscopist needs it.

Is there a particular reason why the new optical trains system does not populate this field of the fits header? When using indi for actual science not just pretty pictures, the actual observation date and time are essential information.
1 month 5 days ago #89256

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic Ekos Optical Trains

I'm seeing DATE-OBS in a regular capture. How to reproduce your issue?
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
1 month 4 days ago #89261

Please Log in or Create an account to join the conversation.

  • Posts: 565
  • Thank you received: 56

Replied by Magnus Larsson on topic Ekos Optical Trains

Hi!

I'm also doing spectroscopy. My main camera does not do any plate solving. And I do not get DATE-OBS in the fits headers. At least I did not last night. Below is a header.

Magnus

SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 1391 / length of data axis 1
NAXIS2 = 1039 / length of data axis 2
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
BZERO = 32768 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
ROWORDER= 'TOP-DOWN' / Row Order
INSTRUME= 'Atik 314L' / CCD Name
TELESCOP= 'Celestron NexStar' / Telescope name
OBSERVER= 'Unknown ' / Observer name
OBJECT = 'HD208501' / Object name
EXPTIME = 4.500000E+01 / Total Exposure Time (s)
CCD-TEMP= -1.502E+01 / CCD Temperature (Celsius)
PIXSIZE1= 6.450000E+00 / Pixel Size 1 (microns)
PIXSIZE2= 6.450000E+00 / Pixel Size 2 (microns)
XBINNING= 1 / Binning factor in width
YBINNING= 1 / Binning factor in height
XPIXSZ = 6.450000E+00 / X binned pixel size in microns
YPIXSZ = 6.450000E+00 / Y binned pixel size in microns
FRAME = 'Light ' / Frame Type
IMAGETYP= 'Light Frame' / Frame Type
FOCALLEN= 0.000E+00 / Focal Length (mm)
APTDIA = 0.000E+00 / Telescope diameter (mm)
FOCUSPOS= 735 / Focus position in steps
FOCUSTEM= 2.000E+01 / Focuser temperature in degrees C
END

Losmandy G11, Celestron CGE-Pro
Celestron C11, C8
Skywatcher 100 ED Pro
QHY268m, Atik 383L+, ASI294
Lowspec, Star'Ex
1 month 4 days ago #89262

Please Log in or Create an account to join the conversation.

  • Posts: 87
  • Thank you received: 1

Replied by Robert Miller on topic Ekos Optical Trains

Hamish and Magnus: Could you please post your optical trains? Jasem will likely have a better take on the data than I.
I have some spectroscopy files from my latest observing sessions in November and the DATE-OBS field is present. I don't understand the connection between plate solving and the appearance of the observation date, or how a spectrometer affects whether the field is present. INDI/Ekos isn't aware of a spectrometer.

Something I did notice: in my FITS header there is always a "Comment Generated by INDI"
FWIW, i did not see a similar line in the header from Magnus.

Bob
1 month 4 days ago #89265

Please Log in or Create an account to join the conversation.

  • Posts: 565
  • Thank you received: 56

Replied by Magnus Larsson on topic Ekos Optical Trains

Hi!

I've been talking to Jasem and it seems he has fixed the issue - though I'm still not clear what it is all about.

The point about plate solving was/is my hypothesis that since optical trains are separate, maybe the main camera train is not "aware" of the plate solving data. Which again is odd since that is related to mount, not camera. So just an attempt to make sense of it all.

I'll post my optical trains later.

Magnus

Losmandy G11, Celestron CGE-Pro
Celestron C11, C8
Skywatcher 100 ED Pro
QHY268m, Atik 383L+, ASI294
Lowspec, Star'Ex
1 month 4 days ago #89266

Please Log in or Create an account to join the conversation.

Time to create page: 0.494 seconds