60mm lunt cak + omega cak

highfnum · Post by **highfnum** » Tue Mar 30, 2021 11:21 pm

with double stack you can get bright proms

highfnum · Post by **highfnum** » Tue Mar 30, 2021 11:22 pm

normally you need gain high like following

highfnum · Post by **highfnum** » Tue Mar 30, 2021 11:25 pm

not as narrow as my spectroheliograph
but look carefully and proms are there

DeepSolar64 · Post by **DeepSolar64** » Wed Mar 31, 2021 4:18 am

Nice! I can see them.

Post by **Montana** » Wed Mar 31, 2021 2:52 pm

Lovely work John

have you tried enhancing them with the shadow/highlights feature in Photoshop?

Alexandra

highfnum · Post by **highfnum** » Thu Apr 01, 2021 4:36 pm

thx Montana - i never tried that feature
here is my attempt

Stardust5858 · Post by **Stardust5858** » Thu Apr 01, 2021 5:25 pm

Lovely captures John. I'm still waiting for some clear blue skies. Been high haze again today. Thanks for sharing.

Post by **Montana** » Thu Apr 01, 2021 5:27 pm

Much better don't you think

Alexandra

highfnum · Post by **highfnum** » Fri Apr 02, 2021 12:09 am

yes
im going to try on some old photos

Post by **marktownley** » Fri Apr 02, 2021 10:34 am

Very nice John, double stacking reduces continuum leakage in the image.