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M42 from my future observatory site
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ernie.mastroianni@...
Great shot. Super sharp, excellent processing.
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Robert Chozick <rchozick@...>
Thanks Ernie. I appreciate your comments.
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Robert On Dec 20, 2020, at 9:46 PM, ernie.mastroianni@... wrote:
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Terri Zittritsch
On Sun, Dec 20, 2020 at 11:02 AM, Bill Long wrote:
Significant tilt. The QHY600 may be better. Less users reporting issues with those.Were you not able to adjust it out? Can you say what significant is? Terri |
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Bill Long
On my ASI6200 it was so severe that I had one triad of the Gerd Neumann CTU maxed out and still didn't have enough to fix that portion of the chip. In my book that is way too much tilt and looks more like sloppy QC (more likely complete lack of QC) on
the manufacturers behalf.
I'm eyeballing that Apx60 from Atik. They have a process they follow to get their chips flat when they build their cameras. I suspect QHY does something similar as those have less users experiencing terrible tilt.
All 5 cameras I've owned from ZWO have had massive tilt problems. Buyer beware.
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Terri Zittritsch <theresamarie11@...>
Sent: Monday, December 21, 2020 6:05 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site On Sun, Dec 20, 2020 at 11:02 AM, Bill Long wrote:
Significant tilt. The QHY600 may be better. Less users reporting issues with those.Were you not able to adjust it out? Can you say what significant is? Terri |
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Roland Christen
That does not sound good.
The main problem i see with the QHY cameras is the lack of a good filter wheel with off-axis guider capability. (unless I'm missing something)
Rolando
-----Original Message-----
From: Bill Long <bill@...> To: Terri Zittritsch <theresamarie11@...>; main@ap-gto.groups.io <main@ap-gto.groups.io> Sent: Mon, Dec 21, 2020 11:43 am Subject: Re: [ap-gto] M42 from my future observatory site On my ASI6200 it was so severe that I had one triad of the Gerd Neumann CTU maxed out and still didn't have enough to fix that portion of the chip. In my book that is way too much tilt and looks more like sloppy QC (more likely complete lack of QC) on
the manufacturers behalf.
I'm eyeballing that Apx60 from Atik. They have a process they follow to get their chips flat when they build their cameras. I suspect QHY does something similar as those have less users experiencing terrible tilt.
All 5 cameras I've owned from ZWO have had massive tilt problems. Buyer beware.
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Terri Zittritsch <theresamarie11@...>
Sent: Monday, December 21, 2020 6:05 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site On Sun, Dec 20, 2020 at 11:02 AM, Bill Long wrote:
Significant tilt. The QHY600 may be better. Less users reporting issues with those.Were you not able to adjust it out? Can you say what significant is? Terri -- Roland Christen Astro-Physics |
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>>>The main problem i see with the QHY cameras is the lack of a good filter wheel with off-axis guider capability. (unless I'm missing something) Starlight xpress has some excellent filter wheel + built-in OAG earlier this year they released a 7 position "mid" version, which i find quite good
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Bill Long
7 position 50mm wheel?
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Monday, December 21, 2020 10:07 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site >>>The main problem i see with the QHY cameras is the lack of a good filter wheel with off-axis guider capability. (unless I'm missing something)
Starlight xpress has some excellent filter wheel + built-in OAG
earlier this year they released a 7 position "mid" version, which i find quite good
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Bill Long
Their OAG (QHY OAG-M) bolts directly to their CFW3 series wheel. Small prism on it (8mm x 8mm) but good enough for a Lodestar x2 chip.
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Monday, December 21, 2020 10:05 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site That does not sound good.
The main problem i see with the QHY cameras is the lack of a good filter wheel with off-axis guider capability. (unless I'm missing something)
Rolando
-----Original Message-----
From: Bill Long <bill@...> To: Terri Zittritsch <theresamarie11@...>; main@ap-gto.groups.io <main@ap-gto.groups.io> Sent: Mon, Dec 21, 2020 11:43 am Subject: Re: [ap-gto] M42 from my future observatory site On my ASI6200 it was so severe that I had one triad of the Gerd Neumann CTU maxed out and still didn't have enough to fix that portion of the chip. In my book that is way too much tilt and looks more like sloppy QC (more likely complete lack of QC) on
the manufacturers behalf.
I'm eyeballing that Apx60 from Atik. They have a process they follow to get their chips flat when they build their cameras. I suspect QHY does something similar as those have less users experiencing terrible tilt.
All 5 cameras I've owned from ZWO have had massive tilt problems. Buyer beware.
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Terri Zittritsch <theresamarie11@...>
Sent: Monday, December 21, 2020 6:05 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site On Sun, Dec 20, 2020 at 11:02 AM, Bill Long wrote:
Significant tilt. The QHY600 may be better. Less users reporting issues with those.Were you not able to adjust it out? Can you say what significant is? Terri -- Roland Christen Astro-Physics |
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Terri Zittritsch
Hi Bill, thanks for letting me know.. I wish I would have found this on-line before I purchased because once I have my mind set… as soon as I saw the ad I pulled the trigger. I did search a bit and noticed people talking about the need for a big (68mm) tilt ring in front of AOG (which I have with the used package I found). Almost entirely the discussions I found were about vignetting, and not really high tilt. I do know there is the potential for light leakage around the 68mm tilt ring so need to fix that, but should not be a big issue. The guy I purchased from did suggest the Gerd Neumann CTU if I wanted a better tilt system for small amounts of tilt because the tilt ring is hard to adjust for small amounts of tilt. I’ll keep my fingers crossed. If I find it hard, I’ll get a Gerd Neumann CTU. With all I have invested, donuts are unacceptable. I’d consider that much tilt, as your saying, a reason to return the camera.. wow. Did you talk to Sam (I think that’s him at ZWO)? Maybe he would have taken it back. I wonder if there is any way for me to test this now? Today I’m trying to wish the clouds away to get a view of the conjunction. We have the Vermont pea soup over us even thought astrospheric says it should have been clear since 10am until around 5pm. I’ve had one clear night in about 35 days. I hope your skies are better! Terri
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On Mon, Dec 21, 2020 at 11:48 AM, Bill Long wrote:
I'm eyeballing that Apx60 from Atik. They have a process they follow to get their chips flat when they build their cameras. I suspect QHY does something similar as those have less users experiencing terrible tilt.Apx60? We can order Atik CosMos Mono or color from dealers with this IMX455 sensor, but which are not on the Atik site? Apx60 therefore replaces the CosMos? |
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Bill Long
They canned CosMos due to Covid19 then when they announced their imx455 camera the name changed to Apx60.
https://www.atik-cameras.com/product/apx60/
From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dominique <d.h.durand@...>
Sent: Monday, December 21, 2020 11:03 AM To: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site On Mon, Dec 21, 2020 at 11:48 AM, Bill Long wrote:
I'm eyeballing that Apx60 from Atik. They have a process they follow to get their chips flat when they build their cameras. I suspect QHY does something similar as those have less users experiencing terrible tilt.Apx60? We can order Atik CosMos Mono or color from dealers with this IMX455 sensor, but which are not on the Atik site? Apx60 therefore replaces the CosMos? |
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Bill Long
Not all of them are bad. It is a game of camera roulette which I don't seem to win very often. 😉
The Gerd CTU is the right way to go, the built in "tilt plate" from ZWO is not very good at all. Your camera may be fine, and only need a tiny tweak to get it working perfectly. Others have had that experience, although I suspect its more of a F ratio thing.
Faster = more problems when tilt is present. The smaller pixels on those cameras also bring their share of issues when tilt is present as well.
My plan is to stay on the sidelines for this IMX455 and allow other manufacturers to release theirs. Atik and SX are both working on one, and both of them take great care in ensuring their sensors are squared. For those wanting to buy now, I would suggest the
QHY600. Its on sale too. :)
From: Terri Zittritsch <theresamarie11@...>
Sent: Monday, December 21, 2020 10:50 AM To: Bill Long <bill@...> Cc: main@ap-gto.groups.io <main@ap-gto.groups.io> Subject: Re: [ap-gto] M42 from my future observatory site Hi Bill, thanks for letting me know.. I wish I would have found this on-line before I purchased because once I have my mind set… as soon as I saw the ad I pulled the trigger. I did search a bit and noticed people talking about the need for a
big (68mm) tilt ring in front of AOG (which I have with the used package I found). Almost entirely the discussions I found were about vignetting, and not really high tilt. I do know there is the potential for light leakage around the 68mm tilt ring so
need to fix that, but should not be a big issue. The guy I purchased from did suggest the Gerd Neumann CTU if I wanted a better tilt system for small amounts of tilt because the tilt ring is hard to adjust for small
amounts of tilt. I’ll keep my fingers crossed. If I find it hard, I’ll get a Gerd Neumann CTU. With all I have invested, donuts are unacceptable.
I’d consider that much tilt, as your saying, a reason to return the camera.. wow. Did you talk to Sam (I think that’s him at ZWO)? Maybe he would have taken it back.
I wonder if there is any way for me to test this now? Today I’m trying to wish the clouds away to get a view of the conjunction. We have the Vermont pea soup over us even thought astrospheric says it should have been clear since 10am until
around 5pm. I’ve had one clear night in about 35 days.
I hope your skies are better!
Terri
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