Review and test footage on phone telescope x8. This are very cheap on Ebay. Clip-on 8x Optical Zoom Universal Telescope Camera Lens Cell Phone
Ebay link
https://www.ebay.co.uk/p/HD-Clip-on-12x-Optical-Zoom-Universal-Telescope-Camera-Lens-Cell-Phone-iPhone-UK/23012797083?iid=292428685888&_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D48422%26meid%3D17f82b48dcc64b839d123db0c51b8437%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D323043027207%26itm%3D292428685888&_trksid=p2047675.c100005.m1851