Bresser Messier NT-130 telescope smartphone holder
The stock Bresser Messier phone holder for taking space photos is ... suboptimal, to be kind. Samsung S23 kept falling out, so did the Nothing 3a. Designed a new phone holder to fit over the eyepiece and be adjustable in two dimensions. Should fit most smartphones around in 2026. Needs a good print, we printed ours on Bambu P1S with 0.12 mm. Requires a rubber band or two for the phone holder. Also recommend glueing a small piece of high-friction material to the phone holder arms, otherwise phones with no cover may still slip out. But with two 1cmx3cm rubber patches glued in, the phone goes absolutely nowhere. And due to easy adjustability, it's much quicker and easier to take photos of the night sky.