Latest ZWO ASCOM driver isn't supporting offset correctly: Page 2

Latest ZWO ASCOM driver isn't supporting offset correctly

bos

ken22 if you haven't found the download link it is about 6 or 7 posts above. Look for a post from tech@zwo Aug 9 "zwo-ascom-setup-v6515.rar" 1MB file

ken22

Thank you. One step forward, now struggling with the next. Sorry if this should be obvious, have not used windows for many years since long time Mac user. The downloaded file has a .rar extension and when selecting it, windows asks for an app to load. I tried changing the extension to .exe but it says file cannot run on windows. Can I ask for your help one more time.

ken22

Meant to add, do I have to uninstall the higher version, its on the computer but if I look in device manager I only see the ZWO16200 device which I believe in the non ASCOM driver. This driver takes a picture and shows an offset but all pixels show a 0 value.

ken22

I found out that .rar is a compressed file. Downloaded a program to unzip, even found the directory where the drivers are stored and replaced them. Did not work, images are pure black. Reinstalled the most recent drivers and same issue, all images now have 0 level pixels. This was the problem I initially had with the ZWO none ASCOM driver. Now I remember why I hated windows so much.

StockCarMafia

The 6.5.1.5 driver listed above is either corrupt or broken.

Can someone repost the driver or ZWO add a driver archive so folks can get older drivers from?

bulrichl

@tech@zwo#49912 We are going to communicate with SGP about this issue.

Meanwhile yet another month has passed since you wrote this. Please give us an update:

what is agreed with SGP?
in future, will there be up-to-date ZWO ASCOM camera drivers which enable setting the offset parameter and which are compatible with SGP?

Reverting to the ASCOM camera driver v6.5.1.5 was only a workaround. I hope that SGP users will not be cut off from any further development of ZWO camera drivers (e.g. usage of new camera models)!

Bernd

lgbrand

@tech@zwo the older 6.5.1.5 works well for me under ASCOM 6.5.1 ans SGP 4.0.0.680.
But this feels like an unsupported device. Why you not able to sound the circumstances about the broken behavior against SGP.

Jan

buckeyestargazer

I just want to note that this offset issue is NOT fixed. The only combination of drivers that fully and accurately supports OFFSET correctly is camera driver 3.16 and ASCOM driver 6.5.1.5. Those are both old drivers and contain other old bugs as well.

Please look into this again.

lakerunr

I have this exact same problem with the ASI533MM. SGP responded as follows:
I think I recall now that others have had this issue. There is a problem with the driver here. It’s not implemented according to ASCOM standards and, because of this, it fails. It’s not clear immediately how values up to 30 make it into the list, but what we do know is this:

[06/05/22 08:51:21.981][DEBUG][Main Thread][NONE] Camera implements ASCOM gain. Current gain is 100
That’s a good start. Then… from the ASCOM specification:

When Offset is operating in OFFSET VALUE mode OffsetMin must return the camera's lowest valid Offset setting.

When SGPro queries this value, we find:

[06/05/22 08:51:22.283][DEBUG][Main Thread][NONE] Failed to fetch ASCOM camera offsets from min / max. Failed to get camera offset! : Property read ASCOM.ASICamera2.Camera OffsetMin is not implemented in this driver.
With emphasis on:

OffsetMin is not implemented in this driver

I am using ZWO_ASCOM_Setup_V6.5.1.8, but I have an old copy of V6.5.1.5. Does the old rev fix the problem? Will it introduce other problems with 2600/533?

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