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.
Antlia OIII 3 nm Pro 2" narrowband filter
35984.11 ₽ net price (non-EU countries)
Anatolii Livashevskyi
Product Manager
/ 
+48721808900
+48721808900
+48721808900
[email protected]
Description
Antlia OIII 3 nm Pro 2" Narrowband Astrophotography Filter
The Antlia OIII 3 nm Pro 2" Narrowband Astrophotography Filter is a high-performance tool meticulously designed for capturing stunning images of emission nebulae. This professional-grade filter specifically targets the 500.7 nm wavelength, which is characteristic of light emitted by ionized oxygen atoms, making it an essential accessory for any astrophotographer.
Exceptional Build Quality
True to the Antlia brand, this filter is crafted with precision and adheres to rigorous military standards for surface quality. It boasts an exceptionally narrow half-bandwidth of just 3 nm, allowing it to effectively filter out unwanted light from sodium and mercury lamps while maximizing the transmission of the OIII spectral line.
Important Note: This filter is designed solely for astrophotography and is not suitable for visual observations. It must never be used for observing the Sun.
Key Features
- Bandpass Filter: Transmits light at a precise wavelength of 500.7 nm.
- Compatibility: Ideal for use with astrographs operating at f/3, such as RASA or Hyperstar systems.
- Exceptionally Narrow Bandwidth: Offers a half-width of 3 nm to ensure maximum contrast.
- High Light Pollution Cut-Off Efficiency: Blocks unwanted light with an optical density of OD5, achieving a 99.999% reduction in light pollution.
Technical Specifications
- Filter Type: Bandpass filter
- Filter Diameter: 2"
- Filter Thickness: 2 ± 0.05 mm
- Filter Shape: Round
- Transmitted Bands: OIII (500.7 nm)
- Peak Permeability Location (CWL): 500.7 nm
- Half Bandwidth (FWHM): 3 nm
- Maximum Transmission: > 85%
- Blocked Bands: Mercury lamps (435.8 nm, 546.1 nm, 577 nm, 578.1 nm), sodium lamps (598 nm, 589.6 nm, 615.4 nm, 616.1 nm)
- Light Pollution Blocking Efficiency: > 99.999%
- Equivalent Optical Density for Blocked Lines: OD5 (300 - 1000 nm)
- Surface Quality Index: 60/40 (as per MIL-O-13830 standard)
- Parallelism: 30"
- Execution Accuracy (RMS): λ / 4
Included in the Set
- Antlia OIII 3 nm Pro 2" Filter
Warranty
The filter is backed by a three-year manufacturer's warranty, covering any delamination issues related to the filter and substrate.
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.