Camera
Pick a camera or smart scope, then tap Add to compare.
Custom sensor (mm)
Target
Advanced — image circle & f-ratio
Image circle draws the dashed coverage ring (43.3mm = full frame). f-ratio = focal length / aperture, shown only if you enter an aperture.
dashed = image circle (full-frame coverage) · pinch / scroll / +− to zoom · drag to move when zoomed
Targeting
RA — Dec —
PA 0°
Point the scope at the center coords, then rotate the camera to this position angle. Drag the frame over a loaded image to recompose.