Hi! Yes, just holding the phone to the eyepiece is not a good idea. It’s better to use a special adapter. For example, there is this option, the telescope phone mount. It is suitable for telescopes with Ultima Duo eyepieces. It has a rigid mount without moving parts, so the phone will not dangle, and the picture will be sharp. I tried shooting the Moon and Jupiter – it turns out well if you adjust the exposure. To shoot stars and nebulae, you need a good phone with a long exposure. The main thing is not to forget about the stability of the telescope. It is better to use timer or remote control so as not to shake the camera. In general, this option works!