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Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust.
Thanks guys..
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Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
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-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
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No. ?Michigan and the guy I got it from said he always stored it inside when not in use.
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On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
? Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
|
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey <jessegodsey@...> wrote:
No. ?Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
|
It was made in 2005 and has never been recoated. ?Very light wash no it did not come off.
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On Oct 24, 2021, at 7:17 PM, Roger Studer <AstroLED@...> wrote:
?
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey <jessegodsey@...> wrote:
No. ?Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
|
Well that is a plus. My son lives near the Pacific Ocean with all that saline humidity. He has to recote his mirror quite often.?
Good luck with your endeavors
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-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 16:48 (GMT-06:00) Subject: Re: [ObsessionUsers] Mirror recommendation and feedback please
No. ?Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
? Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
|
The Swayze mirror in mine was from 2002. The original coating was done by Spectrum Coatings. Ive had it recoated once since then, in 2016. Looking at the pics of your mirror I would recommend you do that. Your options are Majestic Coatings, Clausing, Spectrum, Galaxy Optics,¡I think Optic Wave Labs ( OWL) still does them and Ostahhoski. I know Im missing a few coaters.
Clausing is probably close enough to you to drive it yourself.?.
Mine was recoated by OMI who are no longer in business.
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It was made in 2005 and has never been recoated. ?Very light wash no it did not come off. On Oct 24, 2021, at 7:17 PM, Roger Studer <AstroLED@...> wrote:
?
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey < jessegodsey@...> wrote:
No. ?Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
--
Mark Bungart
15" Obsession #643 / Swayze mirror
Grove City, Ohio
|
If you look at from the back and do not see light coming through the coating that is a good sign that the coatings are in good condition.
Dave Kreige has a YouTube video on cleaning mirrors.? I would watch it.? I also like the Optical Wave Laboratory (OWL) mirror cleaning? method.
Chris
On Sun, Oct 24, 2021 at 7:10 PM Mark Bungart < mbungart@...> wrote: The Swayze mirror in mine was from 2002. The original coating was done by Spectrum Coatings. Ive had it recoated once since then, in 2016. Looking at the pics of your mirror I would recommend you do that. Your options are Majestic Coatings, Clausing, Spectrum, Galaxy Optics,¡I think Optic Wave Labs ( OWL) still does them and Ostahhoski. I know Im missing a few coaters.
Clausing is probably close enough to you to drive it yourself.?.
Mine was recoated by OMI who are no longer in business.
It was made in 2005 and has never been recoated.? Very light wash no it did not come off. On Oct 24, 2021, at 7:17 PM, Roger Studer <AstroLED@...> wrote:
?
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey < jessegodsey@...> wrote:
No.? Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
--
Mark Bungart
15" Obsession #643 / Swayze mirror
Grove City, Ohio
|
Recoat! Dog gone talk-to-text app!
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-------- Original message -------- From: "Frank Nowatzke via groups.io" <fnowat@...> Date: 10/24/21 18:53 (GMT-06:00) Subject: Re: [ObsessionUsers] Mirror recommendation and feedback please
Well that is a plus. My son lives near the Pacific Ocean with all that saline humidity. He has to recote his mirror quite often.?
Good luck with your endeavors
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 16:48 (GMT-06:00) Subject: Re: [ObsessionUsers] Mirror recommendation and feedback please
No. ?Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
? Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- From: Jesse Godsey <jessegodsey@...> Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
|
Point of clarification. ?So do you shine a light from the front and look at the back or shine a light from the back and look at the front ?
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On Oct 24, 2021, at 8:19 PM, Christine Zeltner <czeltner356@...> wrote:
? If you look at from the back and do not see light coming through the coating that is a good sign that the coatings are in good condition.
Dave Kreige has a YouTube video on cleaning mirrors.? I would watch it.? I also like the Optical Wave Laboratory (OWL) mirror cleaning? method.
Chris On Sun, Oct 24, 2021 at 7:10 PM Mark Bungart < mbungart@...> wrote: The Swayze mirror in mine was from 2002. The original coating was done by Spectrum Coatings. Ive had it recoated once since then, in 2016. Looking at the pics of your mirror I would recommend you do that. Your options are Majestic Coatings, Clausing, Spectrum, Galaxy Optics,¡I think Optic Wave Labs ( OWL) still does them and Ostahhoski. I know Im missing a few coaters.
Clausing is probably close enough to you to drive it yourself.?.
Mine was recoated by OMI who are no longer in business.
It was made in 2005 and has never been recoated.? Very light wash no it did not come off. On Oct 24, 2021, at 7:17 PM, Roger Studer <AstroLED@...> wrote:
?
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey < jessegodsey@...> wrote:
No.? Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
--
Mark Bungart
15" Obsession #643 / Swayze mirror
Grove City, Ohio
|
From the BACK of the mirror .
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Point of clarification. ?So do you shine a light from the front and look at the back or shine a light from the back and look at the front ? ? If you look at from the back and do not see light coming through the coating that is a good sign that the coatings are in good condition.
Dave Kreige has a YouTube video on cleaning mirrors.? I would watch it.? I also like the Optical Wave Laboratory (OWL) mirror cleaning? method.
Chris On Sun, Oct 24, 2021 at 7:10 PM Mark Bungart < mbungart@...> wrote: The Swayze mirror in mine was from 2002. The original coating was done by Spectrum Coatings. Ive had it recoated once since then, in 2016. Looking at the pics of your mirror I would recommend you do that. Your options are Majestic Coatings, Clausing, Spectrum, Galaxy Optics,¡I think Optic Wave Labs ( OWL) still does them and Ostahhoski. I know Im missing a few coaters.
Clausing is probably close enough to you to drive it yourself.?.
Mine was recoated by OMI who are no longer in business.
It was made in 2005 and has never been recoated.? Very light wash no it did not come off. On Oct 24, 2021, at 7:17 PM, Roger Studer <AstroLED@...> wrote:
?
How old is the coating on the mirror? It looks pretty much like mine except mine is worse. That being said my 15" is number 118, built in 1994. If it doesn't wash off I'd guess the coating is breaking down.
Roger
On Sunday, October 24, 2021, 05:48:29 PM EDT, Jesse Godsey < jessegodsey@...> wrote:
No.? Michigan and the guy I got it from said he always stored it inside when not in use. On Oct 24, 2021, at 5:17 PM, Frank Nowatzke <fnowat@...> wrote:
?
Was it stored near the coast? Humid salty air.?
Just guessing.?
Regards,? Frank Nowatzke?
-------- Original message -------- Date: 10/24/21 15:44 (GMT-06:00) Subject: [ObsessionUsers] Mirror recommendation and feedback please
Please find attached some pics of my primary out of my 15" F/4.5 Obsession.? Please let me know your thoughts.? I know it is not dust. Thanks guys..
--
Mark Bungart
15" Obsession #643 / Swayze mirror
Grove City, Ohio
--
Mark Bungart
15" Obsession #643 / Swayze mirror
Grove City, Ohio
|
Hi Jesse,
When you say I know it is not dust, does it mean that you already cleaned properly the mirror?
If not my first move would be to clean the mirror properly, as described in a lot of videos (Dave Kriege's one) with appropriate water of course.
My own experience was the I had some strange spots after my mirror got dewed one night and dried after.
A good cleaning removed everything.
By the way, looking from the front of the mirror with a light on the back will show you tiny spots of light where the coating is not there but it doesn't mean you have to change it immediately, sometimes the surface of these tiny spots is less than a fraction of a percent.
Hope this helps,
¹ó°ù¨¦»å¨¦°ù¾±³¦
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I am with Frederic.? I would clean and use first.
One of the best pieces of advice I got early in my astronomy life was "If you do not like what you see when you look look at the mirror?with a flashlight don't do that."
Hi Jesse,
When you say I know it is not dust, does it mean that you already cleaned properly the mirror?
If not my first move would be to clean the mirror properly, as described in a lot of videos (Dave Kriege's one) with appropriate water of course.
My own experience was the I had some strange spots after my mirror got dewed one night and dried after.
A good cleaning removed everything.
By the way, looking from the front of the mirror with a light on the back will show you tiny spots of light where the coating is not there but it doesn't mean you have to change it immediately, sometimes the surface of these tiny spots is less than a fraction of a percent.
Hope this helps,
¹ó°ù¨¦»å¨¦°ù¾±³¦
|
Even if your coating is flaking, it¡¯s probably only a very small percentage of the area. ?Mine is in that category and it still works great. ?Eventually I will have it recoated, but there¡¯s no rush. ?It was last coated in 2007.? Charlie?
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On Oct 25, 2021, at 10:55 AM, Christine Zeltner <czeltner356@...> wrote:
? I am with Frederic.? I would clean and use first.
One of the best pieces of advice I got early in my astronomy life was "If you do not like what you see when you look look at the mirror?with a flashlight don't do that."
Hi Jesse,
When you say I know it is not dust, does it mean that you already cleaned properly the mirror?
If not my first move would be to clean the mirror properly, as described in a lot of videos (Dave Kriege's one) with appropriate water of course.
My own experience was the I had some strange spots after my mirror got dewed one night and dried after.
A good cleaning removed everything.
By the way, looking from the front of the mirror with a light on the back will show you tiny spots of light where the coating is not there but it doesn't mean you have to change it immediately, sometimes the surface of these tiny spots is less than a fraction of a percent.
Hope this helps,
¹ó°ù¨¦»å¨¦°ù¾±³¦
|
A few years ago we had someone come to our dark sky site looking for help with a 10 inch dob he had bought.? We helped him get set up and working.? He had found the dried remains of a small raccoon on the mirror and had cleaned it off.? You could see the outline of it.? I was very surprised to find that it? did not much affect the views.
Chris?
On Mon, Oct 25, 2021 at 12:12 PM Charlie Starks < cstarks@...> wrote: Even if your coating is flaking, it¡¯s probably only a very small percentage of the area.? Mine is in that category and it still works great.? Eventually I will have it recoated, but there¡¯s no rush.? It was last coated in 2007.? Charlie? ? I am with Frederic.? I would clean and use first.
One of the best pieces of advice I got early in my astronomy life was "If you do not like what you see when you look look at the mirror?with a flashlight don't do that."
Hi Jesse,
When you say I know it is not dust, does it mean that you already cleaned properly the mirror?
If not my first move would be to clean the mirror properly, as described in a lot of videos (Dave Kriege's one) with appropriate water of course.
My own experience was the I had some strange spots after my mirror got dewed one night and dried after.
A good cleaning removed everything.
By the way, looking from the front of the mirror with a light on the back will show you tiny spots of light where the coating is not there but it doesn't mean you have to change it immediately, sometimes the surface of these tiny spots is less than a fraction of a percent.
Hope this helps,
¹ó°ù¨¦»å¨¦°ù¾±³¦
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Jesse Godsey
Frank Nowatzke
Christine Zeltner
¹ó°ù¨¦»å¨¦°ù¾±³¦ Ruciak