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INDI Library v1.9.7 Released (29 Jul 2022)

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

Canon 5Dmk2 -> 8 bit only & very variable image download speed

  • Posts: 19
  • Thank you received: 1
Hi, i'm currently using INDI Library: 1.8.7 and have noticed two issues with my 5Dmk2, using the "Canon DSLR" Indi driver.

First off in the INDI control panel under the camera "Image Info" tab it always reverts to 8 Bits per pixel. If you change it to 16 bits you can see it change, and then it flips back to 8 bits immediately by its self. What is causing this? I thought .CR2 files were 14 bit depth, and I am selecting native rather than FITs files.

Secondly I notice the download time is vary variable.  The below is a log from 10 x 30s exposures. The download time varies between 7s (great!) and almost 30s (not so great). What is causing this variability?

Is it something to do with fits viewer as I note download is always <1s if I disable viewing images (also all processing is currently disabled for FITS viewer).

I could disable FITS viewer bit I do like to see the images in case there is an issues (usually mechanical with the mount!).

Running on a Rpi3+, with just KStars running on the PI, and viewing remote via TigerVNC over wifi on my W10 laptop.

Log from Ekos while running locally on the Pi.
[quote]2021-06-26T21:58:13 Received image 10 out of 10.
2021-06-26T21:58:13 Download Time: 7.18 s, New Download Time Estimate: 20.53 s.
2021-06-26T21:57:39 Capturing 30.000-second  image...
2021-06-26T21:57:18 Received image 9 out of 10.
2021-06-26T21:57:18 Download Time: 21.36 s, New Download Time Estimate: 21.75 s.
2021-06-26T21:56:44 Capturing 30.000-second  image...
2021-06-26T21:56:38 Received image 8 out of 10.
2021-06-26T21:56:38 Download Time: 7.04 s, New Download Time Estimate: 21.79 s.
2021-06-26T21:56:03 Capturing 30.000-second  image...
2021-06-26T21:55:34 Received image 7 out of 10.
2021-06-26T21:55:34 Download Time: 28.75 s, New Download Time Estimate: 23.42 s.
2021-06-26T21:55:00 Capturing 30.000-second  image...
2021-06-26T21:54:39 Received image 6 out of 10.
2021-06-26T21:54:39 Download Time: 21.09 s, New Download Time Estimate: 22.76 s.
2021-06-26T21:54:05 Capturing 30.000-second  image...
2021-06-26T21:53:58 Received image 5 out of 10.
2021-06-26T21:53:58 Download Time: 7.09 s, New Download Time Estimate: 23.00 s.
2021-06-26T21:53:24 Capturing 30.000-second  image...
2021-06-26T21:53:04 Received image 4 out of 10.
2021-06-26T21:53:04 Download Time: 20.90 s, New Download Time Estimate: 25.65 s.
2021-06-26T21:52:30 Capturing 30.000-second  image...
2021-06-26T21:52:23 Received image 3 out of 10.
2021-06-26T21:52:23 Download Time: 7.33 s, New Download Time Estimate: 26.60 s.
2021-06-26T21:51:48 Capturing 30.000-second  image...
2021-06-26T21:51:17 Received image 2 out of 10.
2021-06-26T21:51:17 Download Time: 30.91 s, New Download Time Estimate: 31.41 s.
2021-06-26T21:50:42 Capturing 30.000-second  image...
2021-06-26T21:50:01 Received image 1 out of 10.
2021-06-26T21:50:01 Download Time: 40.74 s, New Download Time Estimate: 31.58 s.
2021-06-26T21:49:27 Capturing 30.000-second  image...[/quote]
[quote]2021-06-26T21:49:27 Job requires 30.000-second  images, has 0/10 frames captured and will be processed.
 [/quote]
Last edit: 1 year 1 month ago by James.
1 year 1 month ago #72730

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  • Posts: 19
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As as quick update the same happens with Indi version 1.9.0, namely not letting me switch to 16 bit, and variable download speed (though less this time as it is on a laptop running Mint (varies from 0.46s to 1.62s though).
1 year 1 month ago #72820

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Have you looked at the actual files downloaded? Are they truly only 8-bit? Maybe the INDI control panel is lying to you.
1 year 1 month ago #72824

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Hi, as an updated, I'm now using KStars 3.5.4 and Indi V 1.9.1 and it is now performing as expected - namely the Image Info tab shows 16 bit etc, and there doesn't seem to be the same variability of image download speed.
9 months 1 week ago #77345

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