Hi
Salutations,
as written in a previous post, I got a ful disk, both in visual and in imaging, with a TS 60/360 and a chromosphere quark with valid results.
the visual images are excellent. With the 178 I have good results and with the 174 it will go better. The setup is described elsewhere.
I ask you two things.
1) I currently use a 25mm Ploss TV. I would like a wider field with a longer focal length. I have 30mm ortho Takahashi. excellent result on the disc but I would like a wider field. I'm thinking of a couple of 40mm eyepieces (turret) which ones do you recommend?
2) Has anyone of you ever used the COMBO with short focal length refractors and Powermate? with what results with respect to a chromosphere? a combo was created for the catadioptric or refractor f15 and up.
if someone has already tested it successfully. I would like a combo because of the greater compactness and greater free opening.
I also ask if it is true that the quality of the combos degrades from the center to the outside of the pitch
thank you
Cromo vs combo
- Radon86
- Almost There...
- Posts: 779
- Joined: Sat Mar 23, 2019 10:05 pm
- Has thanked: 745 times
- Been thanked: 660 times
Re: Cromo vs combo
Hi,
I had a look on astronomy.tools and found this result. Not sure if you mean you are making a solar mosaic from a few panels.
Magnus
I had a look on astronomy.tools and found this result. Not sure if you mean you are making a solar mosaic from a few panels.
Magnus
Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
- marktownley
- Librarian
- Posts: 42273
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20441 times
- Been thanked: 10246 times
- Contact:
Re: Cromo vs combo
Hi there,
I would try a 32mm plossl in addition to the 25mm. These are the 2 favourite eyepeices I use with my Quark, also on a 60/360 scope. The 40mm plossl will give pretty much the same true field of view as the 32mm
Mark
I would try a 32mm plossl in addition to the 25mm. These are the 2 favourite eyepeices I use with my Quark, also on a 60/360 scope. The 40mm plossl will give pretty much the same true field of view as the 32mm
Mark
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
-
- Ohhhhhh My!
- Posts: 78
- Joined: Thu May 27, 2021 10:34 am
- Has thanked: 24 times
- Been thanked: 133 times
Re: Cromo vs combo
15.12.2021 Matera (ITA)
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromosphere, ASI 178, 0,5 x reducer + 25 mm extention
AsiStudio, AstroSurface, Photoshop
15.12.2021 Matera (ITA)
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromophere, ASI 178 + TecnoSky 0,5x reducer
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromophere, ASI 178
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromosphere, ASI 178, 0,5 x reducer + 25 mm extention
AsiStudio, AstroSurface, Photoshop
15.12.2021 Matera (ITA)
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromophere, ASI 178 + TecnoSky 0,5x reducer
TecnoSky 60/360 ED, 80 mm extension, DayStar quark Cromophere, ASI 178
Last edited by fedele on Thu Dec 16, 2021 11:02 am, edited 1 time in total.
- Radon86
- Almost There...
- Posts: 779
- Joined: Sat Mar 23, 2019 10:05 pm
- Has thanked: 745 times
- Been thanked: 660 times
Re: Cromo vs combo
Hi Fedele,
I see, the 25mm extension is the key to your getting a full disc. I have a 420mm Focal length 70mm refractor (F6). I will try and find if I can get a 25 mm or more spacer disc.
What is the name of those spacer discs? I find it quite confusing.
I don’t think the Tecnosky 0.5x reducer is special compared to other 0.5x reducers.
Magnus.
I see, the 25mm extension is the key to your getting a full disc. I have a 420mm Focal length 70mm refractor (F6). I will try and find if I can get a 25 mm or more spacer disc.
What is the name of those spacer discs? I find it quite confusing.
I don’t think the Tecnosky 0.5x reducer is special compared to other 0.5x reducers.
Magnus.
Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
-
- Ohhhhhh My!
- Posts: 78
- Joined: Thu May 27, 2021 10:34 am
- Has thanked: 24 times
- Been thanked: 133 times
Re: Cromo vs combo
Hi.
Considering the TS estension of 80 mm on the OTA focuser. And with a 50 mm reducer of OTA for a value oaround f30 for quark.
Camera ASI178 MM + ZWO Tilt + Nose Camera 31,8 + 0,5 x you have this: As you can see for little not full disk (here just a pic with sun among clouds...just to test)
this with 178. With 174 all we be ok. And here you have yet a good disk and a good resolution
Inserting the 25 mm you get the full disk But is quit too much i have ordered 3 other estensions of 5/ 7/8 mm no less of 5, to achive a little great full disk, without going with prominences in a little vignetting zone around the field.
Vignetting is more with long EP and with more estension. You you have to tray many setups until you find the right compromise for your applicasion
i have the best risolution with this setup:
Considering the TS estension of 80 mm on the OTA focuser. And with a 50 mm reducer of OTA for a value oaround f30 for quark.
Camera ASI178 MM + ZWO Tilt + Nose Camera 31,8 + 0,5 x you have this: As you can see for little not full disk (here just a pic with sun among clouds...just to test)
this with 178. With 174 all we be ok. And here you have yet a good disk and a good resolution
Inserting the 25 mm you get the full disk But is quit too much i have ordered 3 other estensions of 5/ 7/8 mm no less of 5, to achive a little great full disk, without going with prominences in a little vignetting zone around the field.
Vignetting is more with long EP and with more estension. You you have to tray many setups until you find the right compromise for your applicasion
i have the best risolution with this setup:
- Montana
- Librarian
- Posts: 34563
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17672 times
- Been thanked: 8791 times
- marktownley
- Librarian
- Posts: 42273
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20441 times
- Been thanked: 10246 times
- Contact:
Re: Cromo vs combo
Very nice results!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!