QHY5P-II Mono 5.0 Mega Pixel CMOS Camera

[Jim Waters]

Has anybody tried this as an autoguider?  How did it work?

http://www.qhyccd.com/QHY5P-II.html

Jim Waters

Phoenix, AZ

[Tim C]

I just bought one of these cameras.  I thought the small pixels would be good for a 50mm guidescope.  I'm having a lot of trouble getting it to work in PHD2 though.  The frame rates are extremely slow with lots of timeouts/hangs.  Hard to say how good it is... hoping this is just a driver issue that I can solve.   I've posted for help on the QHY forum as well.

Tim

[Brian Valente]

Hi Tim

 

What frame rates are you aiming for? Good guiding frame rates are typically in the 3-5 second range (though I use 1.5sec)

 

Thanks

 

Brian

 

 

Brian Valente

Brianvalentephotography.com

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[Tim C]

I usually like 2 to 3.5 seconds but haven’t had enough time to find the sweet spot with my new mount (especially due to the guide camera issues). Frame rate probably wasn’t the best term to use to describe my issue... camera hangs and timeouts are what I’m experiencing. Some sort of driver issue I guess even though I’ve installed all of the correct ASCOM drivers. Im hoping it’s a driver issue and not a limitation driven by the super small pixels of this camera and the corresponding larger image file size.

Tim

[Brian Valente]

I'm sure it's not the pixel size.

You might try using subframes - that will definitely address any possible frame size issues

Thanks

Brian


Brian Valente
Brianvalentephotography.com

-----Original Message-----
From: open-phd...@googlegroups.com [mailto:open-phd...@googlegroups.com] On Behalf Of Tim C
Sent: Friday, June 8, 2018 6:10 AM
To: Open PHD Guiding <open-phd...@googlegroups.com>

[bw_msgboard]

Hi Tim.  I’m not familiar with the camera but I’ll be surprised if it works well as a guide camera.  A 5 mega-pixel guide camera?  The product description doesn’t say what the full-frame download time is but I’d expect it to be long.  It’s fine to use sub-frames if the camera supports them, but you can’t use those all the time.  To initially locate a guide star, for example, a full-frame download is required.  I noticed the site has a PDF document discussing the myriad reasons you can see hangs and timeouts – have you sorted through all that?

 

Good luck,

Bruce

 

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From: open-phd...@googlegroups.com [mailto:open-phd...@googlegroups.com] On Behalf Of Tim C

Sent: Friday, June 08, 2018 4:35 AM
To: Open PHD Guiding

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[Tim C]

Hi Bruce - it’s supposed to have 7fps under usb 2.0 and it appears to work fine at those rates in QHY programs such as EZPlanetary. The appeal is the 2.2um pixel size when used in a 50mm guidescope.

I am trying to sort through the QHY doc you mentioned but I’m having trouble getting the ASCOM drivers to work in PhD... connection errors. I can connect using “QHY Camera” which I think is a native driver? However that is not working well from a frame rate perspective.

[Vince]

I use a QHY5L-II which looks similar to your camera.  I connect it to PHD2 via the QHY Camera driver.  It would cause PHD2 to hang whenever I changed any camera settings or tried to focus, but after reading this http://qhyccd.com/bbs/index.php?topic=3951.0 I started connecting it to a USB charging port on my powered USB hub and now it works fine. 

Vince

[Tim C]

I have the QHY5L-II as well and it was working great with what I think was an older QHY ASCOM driver.  Now, I have issues with it as well after getting the QHY5P and trying to download it's drivers.  I'm in a mess now with one camera (the QHY5P) that doesn't really work and now I have freeze issues with the QHY5L-II.  I now have the 3 (why do they need 3!!) QHY ASCOM drivers and none of them will connect.  Have opened a ticked with QHY.

[Tim C]

Well - to close this out, I've had two remote sessions with QHY.  We can't get the QHY5P-II-L to work with phd2.  It will connect but downloads are extremely slow and the camera times out frequently.  I'm returning mine.

Tim

[bw_msgboard]

Hi Tim.  I think you’re making a good decision here, it really doesn’t make any sense to be using a 5M pixel guide camera.  Better to choose something that was intended for use as a guide cam, perhaps from another manufacturer.

 

Good luck,

Bruce

 

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From: open-phd...@googlegroups.com [mailto:open-phd...@googlegroups.com] On Behalf Of Tim C

Sent: Friday, June 15, 2018 3:58 PM
To: Open PHD Guiding

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