×

INDI Library v1.9.9 Released (30 Nov 2022)

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

New Pentax Driver Testing

  • Posts: 46
  • Thank you received: 6

Replied by Karl Rees on topic New Pentax Driver Testing

Were you using a lens, or doing prime focus? For the K-70 at least, the SDK provided by Ricoh does not expose certain settings unless it detects a lens on the camera that supports those settings. I'm sure whoever decided on this limitation thought they were doing the user a favor by only exposing settings supported by the lens, but obviously they were not thinking about prime focus. Anyway, this means that PTP mode is severely handicapped if you're doing prime focus. Much to my frustration, I did not discover this until after I had already developed the PTP driver, as I probably would have started with MSC mode only had I been aware of the limitation.

The Ricoh SDK does not support bulb mode for PTP with the K-70 (or any camera, I suspect).
2 years 3 months ago #59391

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing


Than the polar alignment tool in ekos would maybe also be possible using the K70 and a refresh rate around 1 - 2 seconds. Am i right?.
2 years 3 months ago #59393

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

  • Posts: 83
  • Thank you received: 6

I use my M200 f4 lens, manual prime.
For me, ISO is not that important, I tend to stick to ISO800.
@Noideadoeaname, you should be able to use your K-70 for proper polar alignment, I don’t know if 1-2sec exposure time is sufficient, if not, it will be difficult to control.
2 years 3 months ago #59400

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing

That was just a flash of thought ;)

I managed to get 1 arcminute error on the K70 while using my guiding cam to do the polar alignment. Think that's okay for 750mm focal length while guiding.
2 years 3 months ago #59402

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing

Anything new about the driver?
2 years 1 month ago #61429

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

  • Posts: 46
  • Thank you received: 6

Replied by Karl Rees on topic New Pentax Driver Testing

No. There are not enough hours in the day, unfortunately. I did respond to the pixel size issue on GitHub. I think it's technically a KStars/Ekos issue, not a driver issue, but the driver could probably be enhanced to supply the values for the K70 so as to avoid the issue in the future.

I had done some initial profiling a while back to see how much time FITs conversion was taking on the Pi4. I was surprised to find it taking less than a second, which is a big improvement over the Pi3 and probably attributable to having more memory available. Unfortunately, this means that clipping and/or downsampling before FITs conversion is unlikely to help much--the bottleneck right now appears to be the transfer from the camera to the Pi4. I'm going to look into it one more time just to double check, though.

Were there any other loose ends?
2 years 1 month ago #61456

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

  • Posts: 83
  • Thank you received: 6
Since you are asking Karl :-)
If we could have an exposure start pulse and an exposure stop pulse, that would make the day for K-70 users. It should be a feature you can activate/deactivate in case you use a camera like the KP or K-1 which is supposed to be working with the Pentax SDK.
Last edit: 2 years 1 month ago by Keld Henningsen.
2 years 1 month ago #61459

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing

My K70 was broken and i received it last week again... with a new shutter (under warranty). 50.000 pictures where maybe too much in 20 months :whistle:

Everything works fine now using the latest Kstars release. Pixelpitch etc. is reported as it should.

I even got my problem solved with the external power source. I cable i bought on AliExpress did it. Now i can power my K70 using an USB port on a powerbank.

Meanwhile i bought a K3 II in good condition while my K70 was at service.

The camera is recognized while using your Native Driver in PTP and MFT mode. I can change ISO, Aparture, exposure compensation, etc...

I was able to take exposures longer (?) than 30 seconds while in manual mode... but no file is transfered. Bulb is not working (or no second press is send to stop exposure?!?!?)

Any idea on this issue using the k3 II?
2 years 2 weeks ago #63335

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

  • Posts: 46
  • Thank you received: 6

Replied by Karl Rees on topic New Pentax Driver Testing

I don't have a K3-II for testing. I wouldn't object to having one, of course, but my wife thinks the money would be better spent elsewhere :)

I think someone else was having some issues with the K3-II as well. I can't recall where that conversation ended up, but I think the issue was related to this thread: github.com/asalamon74/pktriggercord/issues/25. So perhaps try astrotracer mode instead of bulb, and make sure that bulb mode is in press-hold mode? Oh, and just in case, make sure you're in MSC/MFT, because I suspect PTP does not support bulb on any camera.
2 years 2 weeks ago #63344

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing

It didn't work... i tried different combinations of the settings in camera and KStars/Ekos.

My conclusion is now not to sell the K70 and keep both cameras.

Fortunately i got no wife to discuss this ;)
2 years 2 weeks ago #63408

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

  • Posts: 31
  • Thank you received: 1

Replied by Ralph on topic New Pentax Driver Testing

I don't know what happend, but after i updated KStars i stumbled upon an update for "Pentax cameras in MSC Mode" and the K3 II is working :cheer:

1. MSC Mode
2. Bulb Mode with turned on GPS and Astrotracer

The shutter releases two times before the exposure starts, but i think this is related to the LiveView which was turned on.

Great work :woohoo:
Last edit: 1 year 10 months ago by Ralph.
1 year 10 months ago #65772

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

  • Posts: 83
  • Thank you received: 6

Just testing SM OS 1.5.6 with my setup, I guess I'll have to include my K-70 in the test :-)
From previous testing, I've also noticed the K-70 releases the shutter a couple of times when shooting.
Last edit: 1 year 10 months ago by Keld Henningsen.
1 year 10 months ago #65775

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

Time to create page: 1.152 seconds