hi!
first, i would like to take a look whether i am right - as FITS is raw data (header + bytestream), we can at least take a look whether my suspicion is right as the data are contained in the image that you see - but they are only a part of it and the lines are distorted. i assume that the upper quarter of your image (or the lower quarter of the FITS) is the image data, and the remainder is - well, something. that would also make sense as it is 1.3x10⁶ pixels (1280*1024) vs. 3.6x10⁵ pixel (752*480) ...
lg
wolfi

Hi Wolfi,

Tried to make some screens at day.. but the only capture program I could found that is able to connect to the cam is PHD2. But I realy can't focus or make a normal image from something outside.. So I pointed it on something really close with which the dust is getting visible on the lens or sensor.. I hope enough to some reference,

Attached two fit files.
one created in PHD2 in windows (just did save file in PHD) on which you can the dust
one created in PHD2 on my raspberry pi 3 running ubuntu mate.

Hope a solution can be found..

Thanks,
Chris.

hi!
no quick solution as skipping the header and reading the first 752*480 bytes did not work as expected; however, the problem is nevertheless clear. you read 1280*1024 with INDI, whereas the image is only 752*480 pixels, as read correctly by openphd. if you develop your own software, i still believe it can be circumvented - but i would rather contact the qhy people directly and notifiy them of this bug as they are the ones developing the drivers for INDI, as far as i know ...

yours
wolfi

What are QHY CCDs that produce 752x480 pixels?

hi!
the now defunct Alccd 5v (www.astrolumina.de/kamerasysteme/alccd-q...pen/alccd-qhy-5v.php )
astrolumina is a german seller that relabels qhy cameras ...
the original appears to be this one - stargazerslounge.com/topic/72350-review-of-qhy5v-camera/
yours
wolfi

I don't see any firmware for it in QHY... you can try this:

If the above doesn't work, then there is no support for it at all.

I tried that rule already, but doesn't .
So no luck for me with my current guidecam? Can I contact QHY for any support on this?

I send a mail to qhy but didn't get response yet.
Anyone knows if qhy could write the correct driver? Or are there no other options?
Chris

Try to write in their forums. It is unlikely they will support very old cameras, but you never know.

Got this response on the forum. What exactly does this mean?

hi!

well ... I try to translate without being nasty ...
"On linux there is no concept of system driver. "

= "I don't have the faintest idea of UNIX-type operating systems. All those little files in this so-called /dev folder are a mystery! Books like this one - Linux Device Drivers - should be filed under Science Fiction..."

"It is the communication protocol between camera and the host . We now is making a new low level protocol standard for our cameras to let the cameras working under other systems. We can put the QHY5V into this todo list to make this protocol . And then the indi developer can use this protocol to communication with camera."

= "I am unaware that there is actually an interface for the camera and yours was forgotten anyhow..."

sorry for not being more enthusiastic. The only solace I can offer is that operating my QHY 5 under windows is even more of a pain ...
yours
wolfi

Hi Wolfi,

Late response, but what did you actualy mean with "my QHY 5 under windows is even more of a pain"?
My QHY5v does work perfect under Windows.

A new response via QHY forum DM between me and Qiu:
Really don't know who the opensource community is and who could help me further..
Also really no idea about the effort it would cost to add support for it.
At the end if support won't come.. what will be the best quality / lowcost guidecam that is supported by indi?

Regards,
Chris.