I discovered yesterday that I can manually add the LP filter. But how do I add the others?

(Going to the countryside)

I plan on spending more and more time in astrophotography, especially in the summer. I've already became much better that I started out as and I plan on using Siril for better post-processing. I primarily want to image nebula and galaxies, but i’m up for whatever. I am willing to spend ample imaging time on mostly anything in the night sky, so what would be most worth my time? Thanks to everyone for the support in my new journey!

近期拍摄深空天体的时候，照片上经常会出现一些位置相对固定的斑纹，很难处理掉。把照片强化之后，似乎是一些圆形的斑纹。拆开光害滤镜和相机（冷冻相机和光学滤镜一般就装在望远镜上，很少拆卸下来）好像也没有明显的灰尘。大概的原因是什么呢？ 冷冻相机是ASI533PRO

用DWARF3拍摄的作品上传到［梅西耶大满贯］板块，被标注为ai生成是什么意思？ m94和m104

哎......

各位星友老师好，用Seestar S30拍摄星云天体时，额外加一个UHC滤镜拍摄的效果会更好吗？如有用过的，推荐一下品牌型号呗。