Spectrum 10.50" Full Aperture Glass Solar Filter- 257MM to 264MM
The 10.50" Full Aperture Glass Solar Filter from Spectrum has been designed to fit telescopes with an OD range of 257mm to 264mm, and operates as a white light filter. This filter is a full aperture design, which means that it is designed to let you make full and complete use of the aperture of the telescope it has been attached to. It is suitable for any scope with an aperture between 257mm and 264mm. This translates to a range of 10.1" to 10.4" for optimal use.