Images taken with a Canon 70D camera plus a Canon 100-400mm lens fitted with a 2x tele converter and a glass solar filter, making a focal length of 1280mm. Twenty images were captured with an exposure time 1/640th second and ISO200, stacked in Registack6 and processes in PS.
Giant sunspot AR 3354 has a 'beta-gamma-delta' class magnetic field that harbours energy for X-class solar flares. (From information on Spacewether.com on the 1st July 2023)