From June 29 and 30

this is the main message area for anything solar :)
Post Reply
gabrieli
Way More Fun to Share It!!
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

Post by gabrieli »

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
458.jpg
458.jpg (393.31 KiB) Viewed 1925 times
1078.jpg
1078.jpg (721.41 KiB) Viewed 1925 times
552a.jpg
552a.jpg (630 KiB) Viewed 1925 times
294.jpg
294.jpg (340.22 KiB) Viewed 1925 times
180f.jpg
180f.jpg (237.43 KiB) Viewed 1925 times
DSC00049.JPG
DSC00049.JPG (1.18 MiB) Viewed 1925 times
DSC00050.JPG
DSC00050.JPG (1.21 MiB) Viewed 1925 times


User avatar
marktownley
Librarian
Librarian
Posts: 42269
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20424 times
Been thanked: 10243 times
Contact:

Re: From June 29 and 30

Post by marktownley »

These look great Lou! Do you have a link to the new camera?


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!
gabrieli
Way More Fun to Share It!!
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

Post by gabrieli »

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


User avatar
Valery
Way More Fun to Share It!!
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

Post by Valery »

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


"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.
gabrieli
Way More Fun to Share It!!
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

Post by gabrieli »

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


User avatar
Montana
Librarian
Librarian
Posts: 34559
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17666 times
Been thanked: 8787 times

Re: From June 29 and 30

Post by Montana »

Beautiful prominences Lou, the camera looks good :hamster: :bow

Alexandra


User avatar
MAURITS
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 8507
Joined: Tue Nov 27, 2018 4:37 pm
Location: Belgium
Has thanked: 2412 times
Been thanked: 4786 times
Contact:

Re: From June 29 and 30

Post by MAURITS »

A great session here Lou.


Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be
User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14204
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8415 times
Been thanked: 8161 times

Re: From June 29 and 30

Post by Carbon60 »

A productive session, Lou. Nicely done.

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/
User avatar
Radon86
Almost There...
Almost There...
Posts: 779
Joined: Sat Mar 23, 2019 10:05 pm
Has thanked: 745 times
Been thanked: 660 times

Focal reducer 0.5x with Quark setupquery

Post by Radon86 »

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
Hi 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
gabrieli
Way More Fun to Share It!!
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

Post by gabrieli »

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


User avatar
marktownley
Librarian
Librarian
Posts: 42269
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20424 times
Been thanked: 10243 times
Contact:

Re: From June 29 and 30

Post by marktownley »

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.


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
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: From June 29 and 30

Post by yltansg »

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


Post Reply