That's very nice shot, Stephen. Maybe take 500 frames to make a master flat would be able to calibrate the vignetting. A friend of mine told me that put this thing in front of the telescope can make good flat on your short focal telescope ( can fill the full disk), worth to try.
6ada64eba1edfbac39b04cbcaadc0d18.jpg (677.17 KiB) Viewed 303 times
Telescope: ES127CF APO F7.5, LXY80APO F6
Mount: SW AZEQ6, iOption GEM45.
Camera: Player One Apollo-M MAX(IMX432), Apollo-M(IMX174), Apollo-M MINI(IMX429)
Accessories: Daystar Quark Chromosphere, Herschel prism, TV5X, TV2.5X
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!
MoonPrince wrote: ↑Thu Jan 13, 2022 6:29 am
That's very nice shot, Stephen. Maybe take 500 frames to make a master flat would be able to calibrate the vignetting. A friend of mine told me that put this thing in front of the telescope can make good flat on your short focal telescope ( can fill the full disk), worth to try.
6ada64eba1edfbac39b04cbcaadc0d18.jpg
It’s purposely showing the limb darkening or lightening in the inverted image in order to give it a more three-dimensional feel, just like it looks in the scope
Stephen W. Ramsden
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project http://www.solarastronomy.org
Great images, Stephen. Coloured inverted images have a special appearance of their own. Very nice.
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/
MoonPrince wrote: ↑Thu Jan 13, 2022 6:29 am
That's very nice shot, Stephen. Maybe take 500 frames to make a master flat would be able to calibrate the vignetting. A friend of mine told me that put this thing in front of the telescope can make good flat on your short focal telescope ( can fill the full disk), worth to try.
6ada64eba1edfbac39b04cbcaadc0d18.jpg
It’s purposely showing the limb darkening or lightening in the inverted image in order to give it a more three-dimensional feel, just like it looks in the scope
Oh, my mistake, Stephen. I want to say nonuniformity of the brightness on disk (Ha). CaK channel looks great!!
Telescope: ES127CF APO F7.5, LXY80APO F6
Mount: SW AZEQ6, iOption GEM45.
Camera: Player One Apollo-M MAX(IMX432), Apollo-M(IMX174), Apollo-M MINI(IMX429)
Accessories: Daystar Quark Chromosphere, Herschel prism, TV5X, TV2.5X