Hello from a Mr. Jotto, don't steal my job please. I know you also had the need to calibrate your pictures and this is why we gave your name to our new Smart Flatfield Generator. Welcome to Jotto! Oh! Jotto is the Flatfield Generator with designed to help you capture flat calibration frame for your astrophotography. Jotto uses special lead lights with color temperature similar to the one of the sun and especially designed light diffuser to provide a uniform source of illumination. In the bottom part of Jotto you will find a control panel with USB type C port to let you easily connect to the eagle or any standard Windows computer. It also comes with Wi-Fi connectivity so you can wireless control it by using your smartphone or tablet with included people hand-picked. It runs off of a 12V source so you won't need an external power supply and the integrated controller electronics allow you to adjust Jotto's light intensity by 100 steps. Jotto Flatfield Generator is available in many different diameters from 120 to 430mm so you can find the one that best fits your telescope's diameter and we can design even larger diameters on request. When it's time to record your flat frame to calibrate your pictures and remove dust like being etching, you can simply attach Jotto to the front of your telescope by locking it in place with included thumb screws. And you can also convert Jotto in a remotely controlled motorized cap by adding the new automator that clamps to any dovetail bar to perfectly set its opening and closing position. You can control Jotto with Play Astrophotography software that allows you to easily record calibration files for your astrophotography session and it also comes with a dedicated Ascon driver to let you control it through third party astrophotography software. This is Jotto the Smart Flatfield Generator that can be used also as a great motorized telescope cap by adding automator.