| Bandpass | 7nm |
| Filter Shape | Round |
| Filter Size | 1.25″ |
| Filter Thickness | 2mm |
| Filter Type | H Alpha |
| Free Shipping | Yes |
Light Pollution Filters, Optolong Filters
OPTOLONG 1.25″ H-ALPHA 7NM FILTER
₹13,680.00 excl. 18% GST
- H-alpha 7nm 1.25″ Filter
- A very narrow emission-line filter
- Permits a 7nm bandwidth of light (focused on the 656nm wavelength) through
- Blocks transmission of contrast-killing light pollution wavelengths
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