Helios Glass Telescope Solar Filter (7.5") by Seymour Solar
Premium solar filter for telescopes, ND5-rated to block 99.999% of sunlight, enabling safe solar observation and photography of sunspots and eclipses. Users note good quality, ease of use, and secure mounting with three screws
Highlights
- ND5 sun-blocking efficiency
- quality glass with dual-sided coating
- secure mounting design
Pros
- ND5-rated for high sun blockage
- High-quality glass with reflective coating
- Secure aluminum outer cell
- Easy to mount with three screws
- Works for sunspot and eclipse viewing
Cons
- Limited compatibility range to specified tube diameters
Best For
Features
- ND5-rated solar filter blocks 99.999% of sunlight for safe solar viewing
- Glass is Helios Solar Glass with reflective coating on both sides
- Aluminum outer cell provides durable, lightweight mounting for the filter
- Clamp-on attachment secures the filter to the objective with nylon thumb screws
- Fits telescopes with 7 1/8" to 7 3/8" (181mm-187mm) objective diameter
