Thank you for the comments. Some words about the system. Optically, the design values are: F/D ~7, to be combined later to a telecentric x4 and come to high focal ratio number for imaging with a Halpha etalon. D is ~250mm; F is about 1700mm.   Some words about the system. The principle is a herschel...

I'm renewing some of my equipment. I bought a camera and FSQ106 and will probably go for a bigger solar scope also. From my astrogear, the solar newton is for sale. Truss Solar Newton T250 for Ha and CaK Works also with the solar continuum Works also under the G band (430nm) The truss tube and mirro...

This is the V1, original from Airylab
160Eur, which is 50% of current new price

Equipment available from Belgium.
Contact: allhoest@scarlet.be

Hello Bruce, Thank you for your comments on my image. To give some words on it, it has been made with a D250mm f7 newton coupled with a custom design telecentric x5. The resulting focal length is 8750mm, F/D35. These numbers are normally too big for my area where a very common seeing dominates. But ...

Maybe try this link for downloading the tif file:
download/file.php?id=33187

Alex

The post is back here :-) Thank you. Bruce, indeed a very long description, where I recognize the process. Maybe I was not patient enough with solar imaging to find out the right settings. I stopped using it in about 2014. Here is my last solar pic, stacked with 100 pics, sharpened with wavelets, an...

Wonderful proms!
CS
Alex

Very crispy CaK pics!
CS
Alex.

There is a lot of fine details! Great.
How did you managed the back disk? It is a bit non regular.
CS
Alex

Great granulation Pedro.
CS
Alex.

Good that fire capture supports the SSM.
I asked to the fire capture developer some year ago for it, but he had no interest and/or time.
Is the plugin working with the SSM from Airylab?

CS
Alex

Hi!
As it is now in the Solar Reference Library, is it so that we can’t reply to it anymore?
CS
Alex.

I tried several denoising tools some years ago. I finally remained with neatimage. But I after some use, I was not convinced by the results, and stop using it. For solar imaging, we look for the finest detail. The noise is generally at a very high frequency level. There is no need to denoise low fre...

A mosaic at high resolution is very "hazardous" to me.
Too much depend on the seeing, especially for 6 frames. All frames must be good.
CS
Alex

Very contrasted!
CS
Alex

Every agrees on the excellent results for the aperture.
I should give a try with ImPPG...
CS
Alex

I like High res. shot, this one also :-)
For noise reduction I often apply a very noise reduction. I use a gaussian blur, starting at 0.3 pixel, then adjusting.
CS
Alex.

Very fine surface details.
CS
Alex

Your CaK also are very fine.
CS
Alex

Even for difficult seeing condition, the details of the chromosphere are well impressive.
I like the granulation too.
CS
Alex

A lot of details to be seen.
Great!
CS
Alex.

Stéphane, I always wonder your results with only 40mm aperture.
CS
Alex.

Nice :-)
CS
Alex

Extremly detailled chrom picture. Congrats.
The spicules are very fine also.
CS
Alex.

Thanks for the nice comments.
There is (was?) a nice active zone passing through since a few days.
I can't really say that it is a remainder of a former spot. I must confess that I'm not very active, nor watching everything day, unfortunately.

CS
Alex