"The lens says 14mm," Elias muttered to his cat, Orion, who was sleeping on the camera bag. "But on this sensor... is it actually wide enough to capture the arch of the galaxy with those rocks?"
This was the critical part of the 2021 updates. The new generation of cameras had packed so many pixels onto the sensor that the "rule of 500" was obsolete. This calculator asked for his specific pixel size. astro fov calculator 2021
: Users can search for specific "Targets" (e.g., Messier or Caldwell objects) to see how they fit within the sensor's frame or the eyepiece's circle. "The lens says 14mm," Elias muttered to his
$$FOV = 57.3 \times \fracSensor Size (mm)Focal Length (mm)$$ "The lens says 14mm