1.6.23: AR3319 CaK field check

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Dennis
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1.6.23: AR3319 CaK field check

Post by Dennis »

Hi,
today i tried a new configuration for CaK imaging with only 2 lenses in the imaging train. Seeing was not the best but good enough to test it and check the field for aberrations due to the very long extension after the TV 2x barlow (in total ~16.5 cm).
So far the result seems to deliver (non cropped image).

TV 2x barlow, Antlia K-Line 3nm, lunt b1200 CaK filter, 9.5cm spacers, imx432
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2023-06-01-0812_8.png
2023-06-01-0812_8.png (1.68 MiB) Viewed 520 times


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: 1.6.23: AR3319 CaK field check

Post by eroel »

Dennis:
Beautiful CaK image.
Thanks.
Eric.


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Re: 1.6.23: AR3319 CaK field check

Post by pupak »

Very beautiful CaK image.
Petr


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Re: 1.6.23: AR3319 CaK field check

Post by Dennis »

Thanks Eric and Petr. Cant wait to try double stack mode once the second lunt filter arrives from Simon.


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: 1.6.23: AR3319 CaK field check

Post by Valtori »

Very impressive CaK shot!!

Val


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Re: 1.6.23: AR3319 CaK field check

Post by arnedanielsen »

Wonderful CaK image Dennis!

Best regards,
Arne


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Re: 1.6.23: AR3319 CaK field check

Post by marktownley »

Worked well Dennis!


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Re: 1.6.23: AR3319 CaK field check

Post by OlegLviv »

Nice! Antlia 3nm you put near sensor 432? Or front Lunt CAk 1200? Fist to sun Cak Lunt or Antlia 3nm? :seesaw


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Telescope: TS 152/900/Bresser 102/1350
Baader D-ERF 160MM
2xBaader 1.25 GPC
2xLunt 50mm
Lunt Cak B1200
Coronado BF15
Camera: Apollo Max 432M/ Apollo Mini 429M/Player One Mars II 462M/QHY 290MM
Mounh: 2xSky Watcher AZEQ6
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Re: 1.6.23: AR3319 CaK field check

Post by Dennis »

OlegLviv wrote: Fri Jun 02, 2023 8:29 am Nice! Antlia 3nm you put near sensor 432? Or front Lunt CAk 1200? Fist to sun Cak Lunt or Antlia 3nm? :seesaw

The Antlia 3nm sits in front of the Lunt and serves as ERF in combination with the full aperture ERF.


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: 1.6.23: AR3319 CaK field check

Post by OlegLviv »

Dennis wrote: Fri Jun 02, 2023 8:39 am
OlegLviv wrote: Fri Jun 02, 2023 8:29 am Nice! Antlia 3nm you put near sensor 432? Or front Lunt CAk 1200? Fist to sun Cak Lunt or Antlia 3nm? :seesaw

The Antlia 3nm sits in front of the Lunt and serves as ERF in combination with the full aperture ERF.
Thank you! Do you have Cal Lunt 1.25? Or 2.0 with diagonal mirror? How do you stack Antlia 1.25 to Lunt Cal 1200?
Do you have big ERF CAK filter for full aperture?
How is your aperture?


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Telescope: TS 152/900/Bresser 102/1350
Baader D-ERF 160MM
2xBaader 1.25 GPC
2xLunt 50mm
Lunt Cak B1200
Coronado BF15
Camera: Apollo Max 432M/ Apollo Mini 429M/Player One Mars II 462M/QHY 290MM
Mounh: 2xSky Watcher AZEQ6
Telecentric Lense: Televue Powermate 2/2.5x/4X/5X
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Re: 1.6.23: AR3319 CaK field check

Post by Dennis »

OlegLviv wrote: Fri Jun 02, 2023 9:01 am
Dennis wrote: Fri Jun 02, 2023 8:39 am
OlegLviv wrote: Fri Jun 02, 2023 8:29 am Nice! Antlia 3nm you put near sensor 432? Or front Lunt CAk 1200? Fist to sun Cak Lunt or Antlia 3nm? :seesaw

The Antlia 3nm sits in front of the Lunt and serves as ERF in combination with the full aperture ERF.
Thank you! Do you have Cal Lunt 1.25? Or 2.0 with diagonal mirror? How do you stack Antlia 1.25 to Lunt Cal 1200?
Do you have big ERF CAK filter for full aperture?
How is your aperture?

Yo Oleg, its the straight through Lunt b1200 CaK module (without front filters). The Antlia sits on a t2 nosepiece, this goes into the TV Barlow. Then this adapts to the Lunt in front (T2 thread).

Its a Baader Triband sct -> full aperture ERF on the Schmidt plate.
235mm.


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: 1.6.23: AR3319 CaK field check

Post by ffellah »

Very nice experiment and result, Dennis.

Franco


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Re: 1.6.23: AR3319 CaK field check

Post by Averton »

Seems that the new set up worked extremely well Dennis - lovely image!


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Re: 1.6.23: AR3319 CaK field check

Post by OlegLviv »

Dennis wrote: Fri Jun 02, 2023 9:55 am
OlegLviv wrote: Fri Jun 02, 2023 9:01 am
Dennis wrote: Fri Jun 02, 2023 8:39 am


The Antlia 3nm sits in front of the Lunt and serves as ERF in combination with the full aperture ERF.
Thank you! Do you have Cal Lunt 1.25? Or 2.0 with diagonal mirror? How do you stack Antlia 1.25 to Lunt Cal 1200?
Do you have big ERF CAK filter for full aperture?
How is your aperture?

Yo Oleg, its the straight through Lunt b1200 CaK module (without front filters). The Antlia sits on a t2 nosepiece, this goes into the TV Barlow. Then this adapts to the Lunt in front (T2 thread).

Its a Baader Triband sct -> full aperture ERF on the Schmidt plate.
235mm.
If I have 2.0 Lunt Cak cant stack Baader K -Line 5nm in front of the Lunt diagonal! Can stack Baader K -Line after Lunt Cak near sensor?


https://www.facebook.com/oleg.lavigne/
https://www.astrobin.com/users/RamonLviv/
https://www.astroclub.kiev.ua/forum/ind ... ic=46758.0


Telescope: TS 152/900/Bresser 102/1350
Baader D-ERF 160MM
2xBaader 1.25 GPC
2xLunt 50mm
Lunt Cak B1200
Coronado BF15
Camera: Apollo Max 432M/ Apollo Mini 429M/Player One Mars II 462M/QHY 290MM
Mounh: 2xSky Watcher AZEQ6
Telecentric Lense: Televue Powermate 2/2.5x/4X/5X
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Re: 1.6.23: AR3319 CaK field check

Post by Dennis »

OlegLviv wrote: Fri Jun 02, 2023 11:50 am
Dennis wrote: Fri Jun 02, 2023 9:55 am
OlegLviv wrote: Fri Jun 02, 2023 9:01 am

Thank you! Do you have Cal Lunt 1.25? Or 2.0 with diagonal mirror? How do you stack Antlia 1.25 to Lunt Cal 1200?
Do you have big ERF CAK filter for full aperture?
How is your aperture?

Yo Oleg, its the straight through Lunt b1200 CaK module (without front filters). The Antlia sits on a t2 nosepiece, this goes into the TV Barlow. Then this adapts to the Lunt in front (T2 thread).

Its a Baader Triband sct -> full aperture ERF on the Schmidt plate.
235mm.
If I have 2.0 Lunt Cak cant stack Baader K -Line 5nm in front of the Lunt diagonal! Can stack Baader K -Line after Lunt Cak near sensor?

There is only 2" Versions, one is straight through, the other is with diagonal. I unscrewed the front part and that is a T2 thread.
The purpose is not stacking, but replacing the 2 Lunt ERFs in front with the antlia for ERF protection and offband blocking.
This configuration only works in combination with my full aperture ERF. Otherwise you damage the Antlia.


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: 1.6.23: AR3319 CaK field check

Post by OlegLviv »

Dennis wrote: Fri Jun 02, 2023 12:02 pm
OlegLviv wrote: Fri Jun 02, 2023 11:50 am
Dennis wrote: Fri Jun 02, 2023 9:55 am


Yo Oleg, its the straight through Lunt b1200 CaK module (without front filters). The Antlia sits on a t2 nosepiece, this goes into the TV Barlow. Then this adapts to the Lunt in front (T2 thread).

Its a Baader Triband sct -> full aperture ERF on the Schmidt plate.
235mm.
If I have 2.0 Lunt Cak cant stack Baader K -Line 5nm in front of the Lunt diagonal! Can stack Baader K -Line after Lunt Cak near sensor?

There is only 2" Versions, one is straight through, the other is with diagonal. I unscrewed the front part and that is a T2 thread.
The purpose is not stacking, but replacing the 2 Lunt ERFs in front with the antlia for ERF protection and offband blocking.
This configuration only works in combination with my full aperture ERF. Otherwise you damage the Antlia.
Ok if I use 80mm refractor cant damage Baader K-Line and Lunt?


https://www.facebook.com/oleg.lavigne/
https://www.astrobin.com/users/RamonLviv/
https://www.astroclub.kiev.ua/forum/ind ... ic=46758.0


Telescope: TS 152/900/Bresser 102/1350
Baader D-ERF 160MM
2xBaader 1.25 GPC
2xLunt 50mm
Lunt Cak B1200
Coronado BF15
Camera: Apollo Max 432M/ Apollo Mini 429M/Player One Mars II 462M/QHY 290MM
Mounh: 2xSky Watcher AZEQ6
Telecentric Lense: Televue Powermate 2/2.5x/4X/5X
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Re: 1.6.23: AR3319 CaK field check

Post by Dennis »

OlegLviv wrote: Fri Jun 02, 2023 12:24 pm
Dennis wrote: Fri Jun 02, 2023 12:02 pm
OlegLviv wrote: Fri Jun 02, 2023 11:50 am

If I have 2.0 Lunt Cak cant stack Baader K -Line 5nm in front of the Lunt diagonal! Can stack Baader K -Line after Lunt Cak near sensor?

There is only 2" Versions, one is straight through, the other is with diagonal. I unscrewed the front part and that is a T2 thread.
The purpose is not stacking, but replacing the 2 Lunt ERFs in front with the antlia for ERF protection and offband blocking.
This configuration only works in combination with my full aperture ERF. Otherwise you damage the Antlia.
Ok if I use 80mm refractor cant damage Baader K-Line and Lunt?

I dont know, you have to find out. But if it fails you might also damage the Lunt : /
So better try with only the K-line filter and check the temperature development.
To get more protection of the K-line you might want another filter in front like some sort of blue filter.
so in your case i would test with a array like this: barlow->hard coated blue filter ->baader k-line (->later lunt and camera).
no visual at all times.


Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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