Noisy image QHY5LII-C

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admin
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Re: Noisy image QHY5LII-C

Post by admin » Mon Jul 31, 2017 4:28 pm

Hi Mike,

yes, I've reported the issue to QHY and they are going to look into it. Now I undestand the actual issue I can recreate if I need to show the bug again.

cheers,

Robin

cairomike
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Re: Noisy image QHY5LII-C

Post by cairomike » Fri Oct 27, 2017 2:16 pm

Hi Robin

Has this issue been resolved yet? I'd like to purchase the 'pro' license but this is a deal breaker.

Mike

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Re: Noisy image QHY5LII-C

Post by admin » Fri Oct 27, 2017 2:42 pm

Sadly no, I tested last week with the latest QHY SDK I downloaded and the bug is still there. You might want to report the issue on the QHY forums to give them a bit of a prod - I remind them every now and then, but requests from actual customers might carry a bit of extra weight.

cheers,

Robin

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Re: Noisy image QHY5LII-C

Post by cairomike » Thu Jun 07, 2018 10:22 am

Hi Robin

I've just downloaded V3.1.5191. It looks to me that the QHY noise issue has largely been resolved, is that true are we back to V2.8 image quality? I noticed in the revision history you mention a new QHY API. I seem to need different (faster) exposure settings when compared to V2.8 but nothing like as fast as V2.9 - V3.0, perhaps half of what I'd previously used in V2.8. Could you comment on this please?

Regards
Mike

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Re: Noisy image QHY5LII-C

Post by admin » Thu Jun 07, 2018 3:58 pm

Hi Mike,

did you try turning the R/G/B colour balance sliders all the way down? As I understand it on this model these sliders now act as an additional gain for each colour channel, so unless turned down you will be getting a higher gain and hence shorter exposure.

cheers,

Robin

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Re: Noisy image QHY5LII-C

Post by cairomike » Sat Jun 16, 2018 9:57 am

Hi Robin

Thanks for the suggestion, I'll give it a go.

Mike

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