High res images in 2 bands Aug 21 and 25, 12" aperture.
- Valery
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High res images in 2 bands Aug 21 and 25, 12" aperture.
Hi all,
Here are four images I took last summer during tests of new 305mm (312mm outside diameter) DERF filters.
Filters were tested in a front of my C14 telescope.
First three images were taken in Ha and at 393nm continuum (10nm bandwidth).
The fourth image was taken August 25 in Ha.
Thanks for looking.
Valery Deryuzhin.
Here are four images I took last summer during tests of new 305mm (312mm outside diameter) DERF filters.
Filters were tested in a front of my C14 telescope.
First three images were taken in Ha and at 393nm continuum (10nm bandwidth).
The fourth image was taken August 25 in Ha.
Thanks for looking.
Valery Deryuzhin.
- Attachments
-
- 393nm 10nm bandwidth image
- AR21719-2018-Aug-21-UT-7h35m-300mm-393nm.jpg (499.39 KiB) Viewed 2544 times
-
- H-a image
- AR21719-2018-Aug-21-UT-7h44m-300mm-Ha.jpg (498.33 KiB) Viewed 2544 times
-
- H-a image August 25
- AR12720-2018-08-25-UT06h45m-300mm+ARIES-312mm-DERF.jpg (496.44 KiB) Viewed 2544 times
Last edited by Valery on Fri Jul 10, 2020 2:05 pm, edited 3 times in total.
"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.
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- eroel
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Valery:
Superb shots, specially the CaK and the Continuum.
Best regards,
Eric.
Superb shots, specially the CaK and the Continuum.
Best regards,
Eric.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
These are great Valery! The umbra in the first image look burnt out?
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!
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Yes, it was burn out by me with a "curves" tool in the PS CS6.marktownley wrote: ↑Tue Feb 05, 2019 7:43 pm These are great Valery! The umbra in the first image look burnt out?
Otherwise we will not see such a dynamic range for "surface" details.
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.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Excellent images Valery...well done
Brian
Brian
Brian Colville
Maple Ridge Observatory
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C14 + Lunt 80ED
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2.2m Diameter Dome
iOptron CEM70G Mount carrying:
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Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
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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
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Thanks guys!
I published these images (far not all my best) as the illustration of what can be achieved with alternatives to dedicated overpriced solar telescopes and filters.
Valery
I published these images (far not all my best) as the illustration of what can be achieved with alternatives to dedicated overpriced solar telescopes and filters.
Valery
Last edited by Valery on Thu Jul 09, 2020 11:43 am, edited 1 time in total.
"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.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
There ever going to be any smaller ERFs you make commercially Valery? 4"? 6"?
http://brierleyhillsolar.blogspot.co.uk/
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
140mm and 155mm were made. Two 155mm readily available for immediate purchase.marktownley wrote: ↑Wed Feb 06, 2019 10:10 am There ever going to be any smaller ERFs you make commercially Valery? 4"? 6"?
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Exceptional images, Valery. Stunning.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
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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: High res images in 3bands Aug 21 and 25, 12" aperture.
What sort of curve profile you using Valery? Share a screen grab of it?Valery wrote: ↑Tue Feb 05, 2019 9:37 pmYes, it was burn out by me with a "curves" tool in the PS CS6.marktownley wrote: ↑Tue Feb 05, 2019 7:43 pm These are great Valery! The umbra in the first image look burnt out?
Otherwise we will not see such a dynamic range for "surface" details.
Valery
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!
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
I agree your setup offers exceptional value for money. This year I will be going to a IMX174 chipped camera to get up to the 200fps level. I can get up to 110fps at the moment, so interested to see the difference in the faster frame rate. It's the seeing I struggle with so hopefully the extra fps will give better freeze factor!Valery wrote: ↑Wed Feb 06, 2019 6:19 am Thanks guys!
I published these images (far not all my best) as the illustration of what can be achieved with alternatives to dedicated overpriced solar telescopes and filters. These results were achieved without travelling to high altitudes locations, so, in average location conditions at 1.5m above ground and 55m above sea level in the center of 400000 city, with a total cost (telescope + all filters) of about $6000. And a telescope can be used for all types of night observings. If we go down to 8" aperture, then total cost will drop to $3000 - 3500 and the results still be much better than with 80-100mm overpriced dedicated telescopes and filters.
Valery
http://brierleyhillsolar.blogspot.co.uk/
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Great HR images, I love the resolution of the second image. Which filter was used? 393nm?, do you sell these filters
Pedro Re'
https://pedroreastrophotography.com/
https://pedroreastrophotography.com/
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
This is just a 10nm 393nm filter by Edmund + filter #2 from PST CaK.
Baader K-line filter will do the same. The key factors here not a filter. They are:
1. Optical quality (from DERF to OTA and barlow)
2. Seeing. SSM may greatly help.
3. Very fast and low noise camera.
Your south location will provide many good seeing days, I beleive. Much more than here at my location.
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Thanks VAlery
I will try to use my Baader K-line filter for HR work
I will try to use my Baader K-line filter for HR work
Pedro Re'
https://pedroreastrophotography.com/
https://pedroreastrophotography.com/
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Really good results, food for thought too!
Robert
Robert
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LS60PT-LS60F-B1200. B600-Cak. PGR-Ch3-IMX265
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Thanks, Robert. The thought is as simple as 2x2 - for high resolution you need a large aperture.
"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.
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Re: High res images in 3bands Aug 21 and 25, 12" aperture.
Pedro,
For HR work in the UV you need a well corrected telescope of a larger aperture. I think that 6" APO is barely acceptable for this task.
The most cost effective telescope for HR works accross available spectrum is a cheap second hand C11.
It is light and very compact.
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.