July 28 2021 White Light Extreme
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July 28 2021 White Light Extreme
Tested out the QHY5III 174M on white light and its a winner for sure!
5x & 2x Powermate 5x Powermate This is with the Esprit 150 and 2 barlows stacked with a bunch of other things
What's more interesting is that once i dialed in the shutter speed, the details just popped off, almost like I found some weird frequency with the atmosphere.
5x & 2x Powermate 5x Powermate This is with the Esprit 150 and 2 barlows stacked with a bunch of other things
What's more interesting is that once i dialed in the shutter speed, the details just popped off, almost like I found some weird frequency with the atmosphere.
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Re: July 28 2021 White Light Extreme
Excellent work Simon! There isn't much I like better than crisp clear granulation images and you have that here.
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Astro-Tech AT72EDII with Altair solar wedge
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Re: July 28 2021 White Light Extreme
Excellent WL granulation shots, Simon.
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Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: July 28 2021 White Light Extreme
Fascinating. What was this "magical" shutter speed?
Doubling up Barlows will pull the shutter speed right down.
Or demand far too much gain. Or both.
Excellent images BTW.
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Re: July 28 2021 White Light Extreme
Yup, that works! Nice shots!
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Re: July 28 2021 White Light Extreme
Thats what makes the QHY so interesting, when you up the gain, its not as noisy compared to the ZWO, and more importantly, the offset slide can be used to push the histogram off the left side.
How i found the magical shutter speed was to increase 1ms at a time. When I hit 20ms at that point, everything stopped moving. It was just plain weird. Sunday has predicted excellent seeing which is looking quite likely since there is a cool down. Were gonna get get clouded over today and tomorrow with high heat, normally, on the cool down trend here, seeing on the following day is good to excellent. I will test again and this time video the sequence.
How i found the magical shutter speed was to increase 1ms at a time. When I hit 20ms at that point, everything stopped moving. It was just plain weird. Sunday has predicted excellent seeing which is looking quite likely since there is a cool down. Were gonna get get clouded over today and tomorrow with high heat, normally, on the cool down trend here, seeing on the following day is good to excellent. I will test again and this time video the sequence.
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Re: July 28 2021 White Light Extreme
The "Porridge" is boiling so well Simon and you have certainly captured the action fabulously...
Well done
Terry
Well done
Terry
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Re: July 28 2021 White Light Extreme
You just gave me a funny idea... i need to do a macro shot of sugar and see if it looks similar to the granulation, maybe that's why we called it granulation, as in granulated sugar??
EGRAY_OBSERVATORY wrote: ↑Thu Jul 29, 2021 10:22 pm The "Porridge" is boiling so well Simon and you have certainly captured the action fabulously...
Well done
Terry
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Re: July 28 2021 White Light Extreme
That's a different way of looking for a comparison Simon, but for years I and others have used the term "porridge" and I don't think sugar would entice others to understand that when sugar boils, it would like the same as "granulated", compared to "porridge"..
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Re: July 28 2021 White Light Extreme
So what’s up with the histogram slide in Firecapture? I have 2 ZWO cameras and don’t see any slide. But I do remember seeing it. Perhaps it was with a Basler I had.
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Re: July 28 2021 White Light Extreme
I think ZWO cameras in general have the offset slide disabled for some reason, i dont remember why since it was a couple of years ago when they did it to certain cameras. It would make the horizontal banding really bad. Especially the 174, 224 and 120 cameras.
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Re: July 28 2021 White Light Extreme
Love those granulation details Simon
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10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
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ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM