Multiple ZWO Cameras

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Joined: Fri Nov 02, 2018 6:05 am

Multiple ZWO Cameras

Post by wcblack7 » Fri Nov 02, 2018 7:10 am

Sorry, I'm not sure how to edit my original post, but I meant to add that I've tried running multiple instances of SharpCap to control one camera from one instance and the other camera from the other instance, but get similar results with one of the cameras getting listed twice under the native controls, but both listed under the DirectShow controls.

Thanks again!

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Re: Multiple ZWO Cameras

Post by turfpit » Fri Nov 02, 2018 12:26 pm

Here you go Bill

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Re: Multiple ZWO Cameras

Post by celkins » Sat Nov 03, 2018 12:48 am

this sounds like USB chipset compatibility issues, to me - I’ve had this battle - particularly as you note you have only 1 USB3 port, but several USB2s: older chipsets tend to be not very good combined with new USB3 cameras - I’ve found that only the Intel chipset on my motherboard is reliable; several add in cards have not been (in several computers), nor is the USB3.1 chip on my motherboard.
I run 2 ZWO cameras in my imaging rig (either ZWO183MC or ZWO071MC, and a ZWO183MM, so not small ones), and a USB3 QHY as my guide cam: whilst you note that direct connections are recommended, USB3 has serious limits on timing, and hence cable length, so both of my imaging cameras are hooked up via a shared daisy chain of 2 USB3 hubs, simply to manage signal timing over the distance; I have had to tweak the “USB turbo” to 80 for both cameras to get reliable transfer, but I seem to be in the sweet spot.
My hubs are the cheapest Anker ones from Amazon (circa £10), since of the ones I’ve tried to date, these seem best able to cope with subzero & damp conditions. Don’t forget to turn off power management for every hub in the chain - this really screws things up.
Good luck, it is possible...

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