7.5" (190mm) Helios Solar Glass Filter. Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm)

[Music] [Music] solar filters regular solar filters solar wedges and H alpha telescopes which are telescopes specifically designated just to view the Sun to start will actually talk about the regular solar filter which the majority of astronomers do have to view the Sun it's actually a relatively inexpensive accessory which just goes on the front of the telescope and it filters out the majority of the light this one right here cost about $130 I bought it at a local company just to support them also you know I wanted to buy one see more solar just based in Utah the construction and the design is very similar to that which you would find on thousand oak filters a thousand oaks sorry really great filter uses several times now this one's glass there are some mylar ones I'll put a link in the description below where I got this one from but now we're gonna talk about the solar register ok so