April 12
April 12
April 12
April 14
April 14
April 14
April 14
These are images of the Photosphere from April 14
April 14
Chromosphere images from April 16
April 16
April 16
These are the original processed images from April 16th. Note the banding or what is known as Newton Rings.
This effect happens when imaging the Chromosphere at high magnification.
The rings are caused because the components of the optical train are not ultimately aligned to the camera sensor. (which itself may not be aligned!).
Annoying.
Normally this can be cured when imaging by taking a separate "flat frame". (long story!)
For some reason my flat did not work. In this case I was able to simulate a flat frame in Photoshop. Yay!
The images before were the "corrected" images.
Enjoy
The following images are of the Photosphere. No "Rings" here.
April 16
April 16
April 16