Helios Glass Telescope Solar Filter (4.75")
Premium solar filter for telescopes, ND5-rated to block 99.999% of sunlight for safe sun observations and photography of sunspots and eclipses. Helios Solar Glass with reflective coating mounted in an aluminum outer cell
Highlights
- ND5 sun-safe blocking
- high-quality glass with coating
- fits standard telescope tubes
Pros
- ND5-rated sun protection
- glass with reflective coating
- fits 4.375" to 4.625" optical tubes
- easy mounting in aluminum cell
- suitable for sunspot and eclipse viewing
Cons
- specific tube diameter range required
- no customer insights available
- limited to solar observing
Best For
Features
- ND5-rated solar filter blocks 99.999% of sunlight for safe sun observation
- Helios Solar Glass with dual-sided reflective coating for clear sun imagery
- Aluminum outer cell houses the glass for durability and lightweight construction
- Clamp-on design attaches securely to telescope objective with nylon thumb screws
- Fits optical tube diameter 4 3/8" to 4 5/8" (112–117 mm)
