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Interesting about QHY cameras

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#1 unimatrix0

unimatrix0

    Apollo

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Posted 22 October 2021 - 07:29 PM

Today is not the day for astrophotography for me, but for the heck of it (and having a 20 minute window of clear skies) I experimented with connections. 

 

Whether it's known for some or not, when it comes to my QHY183C, there is this religous routine I have to go through, and that is, if I connect it to a software (N.I.N.A or Sharpcap) I have to go to the mount, unplug the USB and plug it back, otherwise I won't get any images. 

 

Same thing if I switch between software, like I'm doing a Bathinov mask with sharpcap, then I disconnect the camera within the software, and then let's say I start N.I.N.A and connect the camera - again- I have to go to the mount unplug/replug the camera again from the usb hub or from the back of the camera. 

I tried this with many USB 3.0 cables and 2 different drivers over the past 8 months , even on different computers and different setups, it's always the same routine- basically it's not my equipment's problem. 

 

So, today I also have another QHY camera, which a color planetary/ guider. QHY5III224.  This camera also have a USB 3.0 connection. 

 

So instead of the USB 3.0 wires, I connected both with USB 2.0 to the hub. 

 

Interestingly, I don't have to do my routine of disconnecting/reconnecting , not even the 183.  They just work fine with USB 2.0, actually feel more stable  I even quick-switched them in Sharpcap and nothing. Works right off the bet, no plugging/unplugging required. 
 

I have to add, they aren't even the best USB 2.0 cables around, they are flat and look quite thin. They come packaged with a ZWO guide camera. 

 

I also tried how far I can push the camera and I had 20fps as max pointed at Jupiter.  I'm not using these cameras for planetary video/photo,  I DSO image with them and the smaller camera is for guiding, so the shortest exposure I have to take are no less than 1 second. 

So just a heads up for anyone having connection issues.  Try a USB 2.0 cable they  fit right in the USB 3.0 port. 


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