This is an Eysdon camera adapter/photo holder, convenient for attaching smartphones to telescopes, microscopes, spotting scopes, binoculars, etc. As shown in the fourth photo, it can hold even an iPhone 15 PRO with a case. It's convenient that you don't have to remove the case every time. Compatible eyepiece size: 28mm-48mm Compatible smartphone size: 55mm-82mm Body size: 15x6x5.5cm Weight: Approximately 102g There is a camera mounting screw hole (UNC1/4) on the bottom of the body, so it can also be used with a tripod. [VIXEN R130S Reflector] The first moon photo ① was taken on 2025/9/1 with this adapter and an Android smartphone. [VIXEN A80MF Refractor] The next moon photo ② was taken on 2023/9/4, and Saturn photo ③ was taken on 2023/9/9 with this adapter and an Android smartphone using a VIXEN A80MF. [MEADE EQM-127 Reflector] The next moon photo ④ was taken on 2022/10/31 with an Android smartphone using a MEADE EQM-127, which cost tens of thousands of yen at the time. [Vixen Space Eye 700 Refractor] The next total solar eclipse photo ⑤ was taken on 2022/11/8 with an iPhone using a Vixen Space Eye 700. It was a complete total lunar eclipse for the first time in 400 years, so the moon appears reddish. You can easily take photos like this with this adapter. [R-80S Reflector, Vixen Space Eye 70M Refractor] The last two moon photos were taken with an Android smartphone: photo ⑥ taken with a Halley Multi R-80S on August 5, 2023, near the supermoon, and photo ⑦ taken with a Vixen Space Eye 70M on 2023/10/23. The supermoons (full moons that appear larger than usual) in 2025 will be on 10/7, 11/5, and 12/4. How about it? Especially 11/5 will be the largest this year. The following stargazing guide is easy to understand regarding this year's astronomical events: https://www.astroarts.co.jp/alacarte/index-j.shtml Telescope, astronomical telescope, adapter, holder, mounter