i’m always struggling to try and find the correct mix to accurately reflect the color you see in the telescope but still be viewable enough to see details on a computer screen.
I have been switching my image formats over to CMYK and using the curves in there to get the red above.
Anyone got any good way they get an accurate eyepiece color on their images?
When Alan Friedman and I developed the inverted disc laid over the prom technique of processing images I don’t think either of us thought it was going to be the end of innovation for this hobby.
It would be great if someone came up with something totally new and awesome that we could use in our processing technique.
Stephen W. Ramsden
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project http://www.solarastronomy.org
This is as close as I have come Stephen knowing our eyes just pick up more dynamic range than our cameras, I just can't get flaring areas to look like they do in an eyepiece. For this I used a B&W set to RGB in Photoshop and then did an adjustment layer in Levels with the following settings on the Histograms:
R 21 1.32 255
G 0 0.27 255
B 0 0.22 255
FD-Ha-3-24-2024-color-in-the-eyepiece.jpg (5.1 MiB) Viewed 328 times
Warren
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
Beautiful images, guys. Colourising can be a bit of a challenge, sometimes, especially with a specific objective in mind. FYI, I use curves in PixInsight.
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/
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!
rigel123 wrote: ↑Tue Mar 26, 2024 2:38 pm
This is as close as I have come Stephen knowing our eyes just pick up more dynamic range than our cameras, I just can't get flaring areas to look like they do in an eyepiece. For this I used a B&W set to RGB in Photoshop and then did an adjustment layer in Levels with the following settings on the Histograms:
R 21 1.32 255
G 0 0.27 255
B 0 0.22 255
FD-Ha-3-24-2024-color-in-the-eyepiece.jpg
That is what I do. Use RGB curves in Ps. Still I have not been able to completely reproduce the color as seen in the eyepiece.
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Agreed. I've tried this several times, never been able to replicate the eyepiece tone and definition faithfully.
I use GIMP for my processing, the coloration is the same as mentioned, adjust the RGB curves. The G'MIC plugin has sliders to adjust the lows, mids and light tones. The monitor I use matters as well, the tone will look subtlety different.
Wayne
Attachments
Lunt 50, BF600, ASI178MM
2024-03-27-1602_Ha color.jpg (432.13 KiB) Viewed 200 times
Lunt LS50THa, B600, single stack
William Optics Z61, Baader solar film filter
DayStar Quark Chromosphere, w/1.25" ZWO UV/IR filter
William Optics Z81
ZWO ASI178MM
When I walk away from my eyepiece, what I remember seeing is a red but slightly orange Sun with a yellowish flare. It's not actually yellowish, but that's what I remember perceiving. On the computer screen, when you try to make the orange-red dark in order to contrast with the brighter yellowish, the Sun starts looking brown. I need to bring an image on my computer with Photoshop to the eyepiece and play with the colors.