Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.
Baader Filters C2 Swan-Band 15nm 2"
Named after their discoverer, these two emission lines, known as Swan bands, prominently feature in a comet's gas tail spectrum in the visible range. By permitting only the light from these carbon bands to pass through, the filter effectively blocks stray light, akin to a nebula filter in deep-sky observation.
140.17 $ net price (non-EU countries)
Anatolii Livashevskyi
Product Manager
/
+48721808900
+48721808900
+48721808900
[email protected]
Description
Introducing the Baader C2 SWAN-Band-Filter, meticulously designed to isolate the two C2 lines at 511 and 514nm.
Named after their discoverer, these two emission lines, known as Swan bands, prominently feature in a comet's gas tail spectrum in the visible range. By permitting only the light from these carbon bands to pass through, the filter effectively blocks stray light, akin to a nebula filter in deep-sky observation. As a result, the structures within the gas tail become more distinct, even under favorable observing conditions.
Simultaneously, it effectively obstructs the OIII line at 501nm and below, a feature absent in other Swan-Band filters. This enhances contrast further, facilitating clearer differentiation between comets dominated by gas tails and those characterized by dust tails, where a SWAN filter offers minimal contrast enhancement.
For enthusiasts in comet observation, a SWAN filter is indispensable equipment.
SPECIFICATIONS
Capacity:
Central wavelength (nm): 513
Half-value width (nm): 15
Filter thickness (mm): 2
Frame:
2"
Mount material:
Aluminium
Coating of optical system:
Multiple
Connection (to the telescope):
2"
General:
Series: C2 Swan-Band
Type: Filters
Type of build: Planetary & Comet Filters
Area of application:
Useful for photographs: Yes
Visually useful: Yes
Twin stars: No
Moon & Planets: No
Nebulae & galaxies: No
Comets: Yes
Data sheet
Official permits of the Ministry of Development and Technology
Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.