The DayStar FlatCap is a Gaussian diffuser that is temporarily installed over the front of your telescope when taking flat field reference images. By strongly blurring the Sun, the only details you will see in the reference image are from defects in your imaging train that can be removed in software.
In the video offered below, the DayStar team provides an overview of how to apply a flat field correction to images taken through a solar telescope. They cover the three major techniques, and demonstrate using popular software.
The Sun is more active than it’s been in years and if that’s not enough, we have the Annular Solar Eclipse on October 14, 2023 and the Total Solar Eclipse on April 8, 2024! If you’d like to learn more about the technology behind solar observing, solar imaging and more, you can check out our new monthly magazine – Solar Astronomy Today. It’s free to read, no subscription needed and available here. And if you are preparing for the upcoming eclipses and want to know your equipment options from solar glasses to the most out of this world solar viewing and imaging options, check out our free publication – The Definitive Guide to Viewing and Imaging the Sun – simply click here and enjoy reading!
And to make it easier for you to get the most extensive news, articles and reviews that are only available in the magazine pages of Astronomy Technology Today, we are offering a 1-year magazine subscription for only $6! Or, for an even better deal, we are offering 2 years for only $9. Click here to get these deals which only will be available for a very limited time. You can also check out a free sample issue here.