Optolong H-Alpha 7nm Narrowband Telescope Filter - 2" Mounted for Astrophotography & Deep Sky Observation
$142.45
$259
Safe 45%
Optolong H-Alpha 7nm Narrowband Telescope Filter - 2" Mounted for Astrophotography & Deep Sky Observation
$142.45
$259
45% Off
Delivery & Return: Free shipping on all orders over $50
Estimated Delivery: 10-15 days international
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SKU: 71378403
Guranteed safe checkout
Description
Sizes
- 2" Mounted
- CWL(centre wavelength): 656.3nm
- Fwhm: 7nm
- Tpeak: <85%
- Coating Wavelength: 300-1100nm
- Optical Denisity: OD3
- Surface Quality: 60/40
- Transmitted Wavefront RMS: λ/4
- Parallelism (arcsec): 30s
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Shipping & Returns
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
