Baader 3.5 / 4nm Ultra-Narrowband Filter-Set CMOS-optimised (H-alpha / O-III / S-II)
Product code:
2961670
in stock
[value]
£618.00 UK Price
£515.00 (ex. VAT) International Price
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Product information
- Baader H-alpha / O-III / S-II Ultra-Narrowband Filter Set Premium Grade
- 3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for optical systems from f/10 to f/3.5
- For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail indispensable under Bortle 9/8/7/(6) skies
- Reflex-Blocker hard coated and planeoptically polished with sealed coating edges (Life-Coat)
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras, but excellent for CCD camera technologies
We explicitly warn against observing the sun with a DeepSky 3.5 nm (equivalent to 35 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes you endanger your eyesight!
Product Info
PREORDER | 2-3 weeks |
MPN | 2961670 |
Brand | Baader |
Product Code | 2961670 |
Delivery Weight Package
|
0.2kg |