Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
This my first post here showing my new home made solar scope. I have to thank my friend and mentor Jozef Csukas (oreoluna) who's perfect solar images and animations inspired me to get into hi-res solar imaging. I've used also his very nice open truss tube idea. I've modified it by 3D printing the mounting rings. The scope is shown here https://www.flickr.com/photos/photon_ch ... 644159956/
Home made H-Alpha telescope by Frank T, on Flickr
The seeing was quite bad but somehow managed to capture the AR2670
AR2670 in H-Alpha on 2017-08-04_T_13-38-51-0956_L_pipp_lapl3_ap892_1 IP90 by Frank T, on Flickr
AR2670 in H-Alpha on 2017-08-04_T_13-38-51-0956_L_pipp_lapl3_ap892_1 IP90 by Frank T, on Flickr[/img]
https://www.flickr.com/photos/photon_ch ... 1493224702
Frank
Home made H-Alpha telescope by Frank T, on Flickr
The seeing was quite bad but somehow managed to capture the AR2670
AR2670 in H-Alpha on 2017-08-04_T_13-38-51-0956_L_pipp_lapl3_ap892_1 IP90 by Frank T, on Flickr
AR2670 in H-Alpha on 2017-08-04_T_13-38-51-0956_L_pipp_lapl3_ap892_1 IP90 by Frank T, on Flickr[/img]
https://www.flickr.com/photos/photon_ch ... 1493224702
Frank
Last edited by FeroT on Wed Aug 09, 2017 7:46 am, edited 2 times in total.
- Valery
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Welcome here, Frank!
Nice to meet one more solar H-a imager!
Can you please, explain us what the advantages of such a triple stack inspired you to use such a complicated filtration rig? From all photos I saw on your flickr page the best (IMHO) are single stack Quark and DS of Quark + PST.
Also why did you destroy the Quark's native barlow? Does TV 4x Powermate works better with Andover 25mm filter?
Thanks,
Valery
Nice to meet one more solar H-a imager!
Can you please, explain us what the advantages of such a triple stack inspired you to use such a complicated filtration rig? From all photos I saw on your flickr page the best (IMHO) are single stack Quark and DS of Quark + PST.
Also why did you destroy the Quark's native barlow? Does TV 4x Powermate works better with Andover 25mm filter?
Thanks,
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.
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hello Valery,
I am not using the triple stack anymore. It was just a one off experiment. I use double stack mostly. It produces to my eye a little bit more contrast and a slight 3d effect. Single stack images look to me a little flatter. Quark is modified with the 25mm Andover blocking filter with Televue 4x Powermate. The Daystar Quark had, what I think, the small negative lens in their telecentric tied down too strongly with the retaining ring and it chipped when the temperatures changed during and after using it. I've asked Daystar to replace it, but they refused. When I took apart the lens assembly of the telecentric, I found out that it is made by Andover. So I bought the same filter with a larger diameter to combine it with the PowerMate, Edmund Optics sell a very nice 25mm lens holder which can be directly screwed into the nose-piece of the PowerMate. This gives a bit brighter image for the Quark and all combinations of double stacks.
Frank
I am not using the triple stack anymore. It was just a one off experiment. I use double stack mostly. It produces to my eye a little bit more contrast and a slight 3d effect. Single stack images look to me a little flatter. Quark is modified with the 25mm Andover blocking filter with Televue 4x Powermate. The Daystar Quark had, what I think, the small negative lens in their telecentric tied down too strongly with the retaining ring and it chipped when the temperatures changed during and after using it. I've asked Daystar to replace it, but they refused. When I took apart the lens assembly of the telecentric, I found out that it is made by Andover. So I bought the same filter with a larger diameter to combine it with the PowerMate, Edmund Optics sell a very nice 25mm lens holder which can be directly screwed into the nose-piece of the PowerMate. This gives a bit brighter image for the Quark and all combinations of double stacks.
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Welcome Frank.
Interesting pics of the setup you have on Flicker, and the Ha images are great too. I look forward to seeing more from this setup.
Brian
Interesting pics of the setup you have on Flicker, and the Ha images are great too. I look forward to seeing more from this setup.
Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Thanks Brian. I appreciate your comment.
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Welcome Frank and thanks for the setup pics.
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Nice images, Frank. A heck of an entrance..... welcome.
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/
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Welcome Frank. You've made a beautifull telescope.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Yes. A nice scope indeed!
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!
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Derek, Stu, Christian, Mark thank you all!
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Wow, what a sexy scope!
Is less weight the biggest advantage of the open truss concept or are there others? And what do you see as disadvantages?
Bart.
Is less weight the biggest advantage of the open truss concept or are there others? And what do you see as disadvantages?
Bart.
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Frank: welcome ! Jozef does a fantastic job with his images and I understand how you got inspired...
Greta images to start and congratulations on your self made telescope.
I look forward to seeing more of your images.
Franco
Greta images to start and congratulations on your self made telescope.
I look forward to seeing more of your images.
Franco
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hi Bart,
Thanks for the compliment. This scope is entirely for solar and H-Alpha, so the tube doesn't need to keep out any unwanted light of the light path. No baffles needed. The sun is the brightest source on the Sky and the whole spectrum is filtered down to a extremely narrow band. The open tube won't produce any "tube currents. I like the look of it. Easy to mount any accessory to the MakerBeam extrusions. As you can see the sub-aperture (110mm) D-ERF can be easily mounted to one of the inner hexagonal rings and take out if I want to use it with some of my other scopes. Easy to hold it, manipulate when I am mounting it on the mount or carry. I was able to use my 3D printer to make it. Will print more lens and D-ERF caps. So far I don't see any disadvantages with this setup.
Frank
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hey Franco,
Thanks. When I started with the H-Alpha imaging a year ago, I was watching all of you guys (and girls:-) on the web thinking that I will never come even close to the level of the work presented here. I know I am still far from getting to the level of Jozef and others, but the progress and mainly the JOY of getting further and further is the driving force.
I am lucky to live right next door from my work and in Hollywood the number of clear sunny days are very high. Most of the time I can grab a nice capture during my lunch break :-)
Frank
Thanks. When I started with the H-Alpha imaging a year ago, I was watching all of you guys (and girls:-) on the web thinking that I will never come even close to the level of the work presented here. I know I am still far from getting to the level of Jozef and others, but the progress and mainly the JOY of getting further and further is the driving force.
I am lucky to live right next door from my work and in Hollywood the number of clear sunny days are very high. Most of the time I can grab a nice capture during my lunch break :-)
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
I bet you will end up with a larger SCT. Or something like this.
150mm aperture is enough for about 1-2 years. Then aperture fever starts to grow rapidly.
Even a small compact 8" SCT can easily beat any 6" refractor. 10" is an optimal aperture for those who like high resolution sun imaging.
Valery
150mm aperture is enough for about 1-2 years. Then aperture fever starts to grow rapidly.
Even a small compact 8" SCT can easily beat any 6" refractor. 10" is an optimal aperture for those who like high resolution sun imaging.
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.
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
You are totally right Valery :-)
Put me on your list of potential buyers for the large diameter D-ERF !
Frank
Put me on your list of potential buyers for the large diameter D-ERF !
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Wow! fantastic telescope and amazing images
Alexandra
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Frank:
Beautiful instrument and results.
Regards,
Eric.
Beautiful instrument and results.
Regards,
Eric.
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Thank you Alexandra and Eric for your kind words.
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hi Frank,
Thanks for your answers! I agree with you: it looks amazing! What is the weight of the scope?
Clear skies! Bart.
Thanks for your answers! I agree with you: it looks amazing! What is the weight of the scope?
Clear skies! Bart.
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hi Bart,
The weight of the scope is 9.3kg, this is without the etalon-telecentric-camera. I have finished another scope using a Wollensak 127mm diameter 1200mm focal length achromat , which have a 6" PVC tube from Home Depot and 3D printed parts and it is 8kg heavy. So the truss tube is not necessarily lighter, but I think more versatile for accepting any accessories and it looks cool :-)
https://www.flickr.com/photos/photon_ch ... 644159956/
Home made Wollensak D127mm FL1200mm ES focuser by Frank T, on Flickr
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Hi Frank,
I think the weight advantage is bigger.
My scope is a Bresser 127/1200. It weighs 7.9 kg. The 150/1200 version weighs 11.1 kg.
The difference between your two Wollensaks is 1.3 kg. So a truss Bresser 150 would be approximately 9.2 kg. That is 1.9 kg less than the standaard version. So about 17%. That is more than just a little! Bart.
I think the weight advantage is bigger.
My scope is a Bresser 127/1200. It weighs 7.9 kg. The 150/1200 version weighs 11.1 kg.
The difference between your two Wollensaks is 1.3 kg. So a truss Bresser 150 would be approximately 9.2 kg. That is 1.9 kg less than the standaard version. So about 17%. That is more than just a little! Bart.
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Thanks Bart for the info. I didn't expect the weight difference to be that big.bart1805 wrote: ↑Wed Aug 09, 2017 2:10 pm Hi Frank,
I think the weight advantage is bigger.
My scope is a Bresser 127/1200. It weighs 7.9 kg. The 150/1200 version weighs 11.1 kg.
The difference between your two Wollensaks is 1.3 kg. So a truss Bresser 150 would be approximately 9.2 kg. That is 1.9 kg less than the standaard version. So about 17%. That is more than just a little! Bart.
Frank
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
What material are you 3D printing in? I find i need full fill else everything is just brittle (which your equipment is quite clearly not!)
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!
Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
I am using mostly PETG. I've tried first PLA, but it was brittle, some parts under stress cracked along the layers. For structural parts (mounting rings, saddle plate and so, I use full fill, but for the focuser mounting hexagon, lens holder, I use 20% infill. Printer is Original PRUSA i3 MK2S.marktownley wrote: ↑Wed Aug 09, 2017 6:03 pm What material are you 3D printing in? I find i need full fill else everything is just brittle (which your equipment is quite clearly not!)
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Re: Home made Wollensak D153mm F1200 H-Alpha pictures of AR2670
Thanks for the details. I'm using PLA, hence my brittle problem. I must look at the alternatives.
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!