15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

this is the main message area for anything solar :)
Post Reply
User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

Setup 1 for Full Disk: SF50 double stacked etalons on a Borg 76mm refractor + PGR Scorpion camera.
Setup 2 for HD H-Alpha: Solarscope SF100 single etalon on a Celestron C6R 152mm refractor + Televue x3 barlow + ASI174mm camera.

First the Fill disk

Image

420 frames selected from 4000 frames

Image

Pseudo colour added in good measure
Image


User avatar
marktownley
Librarian
Librarian
Posts: 42274
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20442 times
Been thanked: 10248 times
Contact:

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by marktownley »

Very nice images and very nice equipment Alfred!


Image
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!
User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11172
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9145 times
Been thanked: 6026 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by ffellah »

Great images, Alfred ! I particularly like the second one of surface detail. Excellent processing.

Franco


User avatar
Montana
Librarian
Librarian
Posts: 34563
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17672 times
Been thanked: 8793 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by Montana »

Beautiful images!!! :bow :hamster:
Happy Easter
Alexandra


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

Montana wrote: Sun Apr 16, 2017 1:05 pm Beautiful images!!! :bow :hamster:
Happy Easter
Alexandra
Hi Alexandra,

Thanks for your kind comments and wishing you and all a great Easter too!

Alfred


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

ffellah wrote: Sun Apr 16, 2017 11:59 am Great images, Alfred ! I particularly like the second one of surface detail. Excellent processing.

Franco
Hi Franco,

The Sun was covered with a thin layer of clouds that just wouldn't go away. I could only achieve an average of 45 frames per second with a shutter of 21ms. Gain was set rather high at 201. Hence the frames were rather noisy and I compensated that by using 420 frames to increase the SNR. I would like to see the image quality with better seeing.

Alfred.


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

marktownley wrote: Sun Apr 16, 2017 9:54 am Very nice images and very nice equipment Alfred!
Hi Mark,

Thanks for your kind comment. I have the C6R refractor and SF100 etalons for some time now but have not used them as I had given more attention to the ARIES D-ERFs. I am making an adapter to use a PST Stage 2 mod on a ARIES 8" D-ERF + 8" SCT. I hope to do some more imaging with the SF100 before HA imaging on the C8 + ARIES D-ERF.

Alfred


User avatar
eroel
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 9408
Joined: Mon Dec 19, 2011 10:45 pm
Location: México D.F.
Been thanked: 4904 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by eroel »

Alfred:
Beautiful FD and super HR image with the 152mm refractor.
Best regards, hope to also soon will start using my new 265mm Aries ERF.
Have a nice Sunday,
Eric.


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

eroel wrote: Sun Apr 16, 2017 2:01 pm Alfred:
Beautiful FD and super HR image with the 152mm refractor.
Best regards, hope to also soon will start using my new 265mm Aries ERF.
Have a nice Sunday,
Eric.
Thanks Eric for your kind comments.

What H-Alpha etalon are you using with the C9.25 SCT + 265mm ARIES D-ERF?

Alfred


User avatar
eroel
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 9408
Joined: Mon Dec 19, 2011 10:45 pm
Location: México D.F.
Been thanked: 4904 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by eroel »

Alfred:
I will use the 265mm ERF for my 10" f/20 TEC Maksutov, and probably also for my 12" f/10 Meade SCT.
As for the etalons, I can use an 0.45A° ATM Daystar, and a 0.5A° modified Daystar T scanner now in a new housing with an internal oven and with a tilt provision.
Both scopes have beautifully corrected optics, the 12" f/10 SCT was hand picked many years ago from dozens of units, each one optically checked.
Best wishes,
Eric.


User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14209
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8418 times
Been thanked: 8165 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by Carbon60 »

Lovely images, Alfred. The second one is particularly good. Nice kit.

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/
Derek Klepp
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 12900
Joined: Wed Oct 19, 2011 10:02 am
Been thanked: 171 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by Derek Klepp »

A good Easter collection Alfred.


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

Carbon60 wrote: Sun Apr 16, 2017 6:22 pm Lovely images, Alfred. The second one is particularly good. Nice kit.

Stu.
Hi Stu,

Thanks for your compliments. The second one was made with 420 frames. I did another one with 600 frames.

Image

I can't really tell if there is any improvement in terms of Signal-to-Noise ratio.

Alfred


User avatar
yltansg
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2798
Joined: Sat Jun 14, 2014 9:33 am
Location: Singapore (1.3N, 103.7E)
Has thanked: 1446 times
Been thanked: 1423 times

Re: 15Apr 17 (Singapore) - SF100 single etalon on a 152mm refractor

Post by yltansg »

Derek Klepp wrote: Sun Apr 16, 2017 8:35 pm A good Easter collection Alfred.
Thanks Derek.

Alfred


Post Reply