Etalon Tuning Comparison: AR1654/Half Disc

[thenews24]

[thenews24]

[Josh Wilson]

Are you asking for an opinion? If so, clearly the 1st image in each set has much more detail. If not, well, it is an opinion . Wonderful seeing you have there, especially for daytime observing.

Josh

[Merlin66]

It clearly demonstrates the importance of setting the tuning to suit the view/ image required.

The etalon can be "tuned" from the red side of Ha to the blue side of Ha (red and blue wings)

Each setting shows different detail in the filaments, surface detail and proms due to the Doppler effect.

You can even achieve a very expensive pseudo "white light" view - similar to the second image......

[Montana]

Beautiful fine detail in both!! great work. It's good to look for Ellerman bombs in the second shot but I don't think I can see any, perhaps you need a little more magnification for this.

Alexandra

[Pete Presland]

that's a great example of just what the tuning ring does, very nice images