SVBONY CLS EOS-C Clip-on Filter for Canon
Canon clip-on telescope filter with durable, scratch-resistant coating and stable central wavelength. Improves nebula contrast by reducing light pollution; some users report fit and installation issues
Highlights
- light-pollution reduction
- stable CWL under temperature
- high pass-band transmission
Pros
- durable coating technology
- stable transmission across temperature
- reduces urban light pollution
- high transmission in main nebula lines
- improves target contrast in city skies
Cons
- fit and installation issues reported
- clips can loosen
- loose fit for some setups
Best For
Features
- Ion-assisted deposition coating provides durability and scratch resistance with stable central wavelength across temperature changes
- Planetary rotation system ensures uniform coatings for high pass-band transmission and controlled off-band optical density
- Transmits 90% of key nebula emission lines including Ha 656nm, OIII 496nm/500nm, SII 672nm, H-beta 486nm
- Only 0.1% transmission of major artificial light pollution lines such as Na 589nm, Hg 435nm, 578nm
- Urban optical filter suppresses city light to improve target contrast
