From June 29 and 30
-
- Way More Fun to Share It!!
- Posts: 2410
- Joined: Thu May 24, 2012 12:12 am
- Location: Woodbridge, Ontario, Canada
- Been thanked: 1735 times
- Contact:
From June 29 and 30
These images are a first light for a new FLIR camera (a 2/3", 2.8Mp, 130f/s).
The first 2 images were taken with this camera and a Lunt 152 + Quark chromosphere and the last 2
with an Aries ERF in its new cell on a c9.25 + 3x telecentric + Quark Combo chromosphere starting
at 12:30 pm on consecutive days.
I took the time to mark a good balance point for the c9.25 setup on the mount for quicker assembly in future.
Seeing was poor especially for the larger setup in addition to the prom being very feint.
More processing was done than I normally use and there are artifacts that show this.
Lou
The first 2 images were taken with this camera and a Lunt 152 + Quark chromosphere and the last 2
with an Aries ERF in its new cell on a c9.25 + 3x telecentric + Quark Combo chromosphere starting
at 12:30 pm on consecutive days.
I took the time to mark a good balance point for the c9.25 setup on the mount for quicker assembly in future.
Seeing was poor especially for the larger setup in addition to the prom being very feint.
More processing was done than I normally use and there are artifacts that show this.
Lou
- marktownley
- Librarian
- Posts: 42523
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20779 times
- Been thanked: 10462 times
- Contact:
Re: From June 29 and 30
These look great Lou! Do you have a link to the new camera?
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!
-
- Way More Fun to Share It!!
- Posts: 2410
- Joined: Thu May 24, 2012 12:12 am
- Location: Woodbridge, Ontario, Canada
- Been thanked: 1735 times
- Contact:
Re: From June 29 and 30
Thanks for the comment, Mark.
Here is a link to the new camera on the FLIR website. Scroll down for the specs.
https://www.flir.ca/products/blackfly-s ... U3-28S5M-C (Canadian site)
FLIR seems to be changing their webpages fairly often these days. You can view the prices in your location by clicking on the globe in the upper right of the page.
Lou
Here is a link to the new camera on the FLIR website. Scroll down for the specs.
https://www.flir.ca/products/blackfly-s ... U3-28S5M-C (Canadian site)
FLIR seems to be changing their webpages fairly often these days. You can view the prices in your location by clicking on the globe in the upper right of the page.
Lou
- Valery
- Way More Fun to Share It!!
- Posts: 4059
- Joined: Sun Nov 18, 2012 3:13 pm
- Has thanked: 156 times
- Been thanked: 893 times
Re: From June 29 and 30
Hi Lou,
Very nice start with new equipment. And pretty looking setup.
You definitely need to try to image the sun early morning if you have such an opportunity. During last four years I imaged the sun mostly early to mid morning. Good seeing is a very rare event after 9:30 at my location.
Also I do not see in the equipment train any word about focal readucer. This camera has small pixels and the image scale F/D>30 require at least 0,6x reducer for optimal image sampling. Oversampling decreases the ability to freeze the seeing because you need longer exposure.
Valery
Very nice start with new equipment. And pretty looking setup.
You definitely need to try to image the sun early morning if you have such an opportunity. During last four years I imaged the sun mostly early to mid morning. Good seeing is a very rare event after 9:30 at my location.
Also I do not see in the equipment train any word about focal readucer. This camera has small pixels and the image scale F/D>30 require at least 0,6x reducer for optimal image sampling. Oversampling decreases the ability to freeze the seeing because you need longer exposure.
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
-
- Way More Fun to Share It!!
- Posts: 2410
- Joined: Thu May 24, 2012 12:12 am
- Location: Woodbridge, Ontario, Canada
- Been thanked: 1735 times
- Contact:
Re: From June 29 and 30
Thanks, Valery
I have access to the sun in the east from about 10 am and later. Even at the earliest, I would be aiming close to the tops of houses with their hot roofs.
I agree with you that ideally a focal length of about 4500 mm would be ideal for the 4.5 µm pixels in the sensor. I plan to try my 2X Televue Powermate next to give about 4600mm and short extension and separately a 0.63X Celestron reducer with the 3X telecentric to give about 4300X. I have 2 " nose piece and accessory adapters for this 0.63X reducer to allow attaching the 3X telecentric but then there is a long over hang at the back of the C9.25. I've used these accessories in the past but the weather is never consistent enough to develop the setups that I've tried.
Another combination that I will try is the regular Quark with a 0.5X reducer to give about the same image scale and keep the extension short. So far, we have had the worst spring weather in some time here with lots of clouds , let alone good seeing.
Lou
I have access to the sun in the east from about 10 am and later. Even at the earliest, I would be aiming close to the tops of houses with their hot roofs.
I agree with you that ideally a focal length of about 4500 mm would be ideal for the 4.5 µm pixels in the sensor. I plan to try my 2X Televue Powermate next to give about 4600mm and short extension and separately a 0.63X Celestron reducer with the 3X telecentric to give about 4300X. I have 2 " nose piece and accessory adapters for this 0.63X reducer to allow attaching the 3X telecentric but then there is a long over hang at the back of the C9.25. I've used these accessories in the past but the weather is never consistent enough to develop the setups that I've tried.
Another combination that I will try is the regular Quark with a 0.5X reducer to give about the same image scale and keep the extension short. So far, we have had the worst spring weather in some time here with lots of clouds , let alone good seeing.
Lou
- Montana
- Librarian
- Posts: 34721
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17970 times
- Been thanked: 8905 times
- MAURITS
- Way More Fun to Share It!!
- Posts: 8615
- Joined: Tue Nov 27, 2018 4:37 pm
- Location: Belgium
- Has thanked: 2464 times
- Been thanked: 4880 times
- Contact:
- Carbon60
- Way More Fun to Share It!!
- Posts: 14304
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8543 times
- Been thanked: 8280 times
Re: From June 29 and 30
A productive session, Lou. Nicely done.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
- Radon86
- Almost There...
- Posts: 788
- Joined: Sat Mar 23, 2019 10:05 pm
- Has thanked: 763 times
- Been thanked: 663 times
Focal reducer 0.5x with Quark setupquery
Hi Lou,gabrieli wrote: ↑Mon Jul 01, 2019 11:28 am Thanks, Valery
I have access to the sun in the east from about 10 am and later. Even at the earliest, I would be aiming close to the tops of houses with their hot roofs.
I agree with you that ideally a focal length of about 4500 mm would be ideal for the 4.5 µm pixels in the sensor. I plan to try my 2X Televue Powermate next to give about 4600mm and short extension and separately a 0.63X Celestron reducer with the 3X telecentric to give about 4300X. I have 2 " nose piece and accessory adapters for this 0.63X reducer to allow attaching the 3X telecentric but then there is a long over hang at the back of the C9.25. I've used these accessories in the past but the weather is never consistent enough to develop the setups that I've tried.
Another combination that I will try is the regular Quark with a 0.5X reducer to give about the same image scale and keep the extension short. So far, we have had the worst spring weather in some time here with lots of clouds , let alone good seeing.
Lou
I am trying to reduce my F25 imaging train in my Quark Chromosphere with a 0.5x focal reducer (1.25 inch Datyson focal reducer).
My imaging train from the back of the 2 inch visual back of my F6 scope (F=420mm;D=70mm) is:
1.25 inch uv/ir filter;
1.25 inch diagonal;
Quark chromosphere
0.5x focal reducer (screwed onto the end of)
Standard nose tube
ZWO ASI120mm
I cannot achieve focus at present. What do I need to get focus?
Thank you.
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
-
- Way More Fun to Share It!!
- Posts: 2410
- Joined: Thu May 24, 2012 12:12 am
- Location: Woodbridge, Ontario, Canada
- Been thanked: 1735 times
- Contact:
Re: From June 29 and 30
Hi, Magnus
Sorry about the delay in answering you. Here's my suggestion for finding focus.
Find focus without the focal reducer first. Then after you add the focal reducer, you need to focus inwards to find the new focus since focal reducers converge the light cone more than before. Also try to shorten the imaging train by eliminating the diagonal. This might give you more in focus travel.
If this doesn't work, the only other option is to use a "weaker" focal reducer (greater than 0.5X), assuming you can't shorten the tube.
Hope this helps.
Lou
Sorry about the delay in answering you. Here's my suggestion for finding focus.
Find focus without the focal reducer first. Then after you add the focal reducer, you need to focus inwards to find the new focus since focal reducers converge the light cone more than before. Also try to shorten the imaging train by eliminating the diagonal. This might give you more in focus travel.
If this doesn't work, the only other option is to use a "weaker" focal reducer (greater than 0.5X), assuming you can't shorten the tube.
Hope this helps.
Lou
- marktownley
- Librarian
- Posts: 42523
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20779 times
- Been thanked: 10462 times
- Contact:
Re: From June 29 and 30
You need to use a 2" diagonal really Magnus. You could put 1.25" extension tubes in but you will likely get sag which takes the quark off band.
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!
- yltansg
- Way More Fun to Share It!!
- Posts: 2804
- Joined: Sat Jun 14, 2014 9:33 am
- Location: Singapore (1.3N, 103.7E)
- Has thanked: 1455 times
- Been thanked: 1444 times
Re: From June 29 and 30
Hi Lou,
You must be glad to see lots of close-up features. Looking forward to see your images with other configurations. Great info for me when using a Quark.
Alfred
You must be glad to see lots of close-up features. Looking forward to see your images with other configurations. Great info for me when using a Quark.
Alfred