Antlia Quad Band Anti-Light Pollution Filter

Name: Filtre Antlia Quad Band Anti Pollution Lumineuse - Deep space astronomy
Price: 209 CHF
Availability: InStock

CHF 209

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Antlia Quad Band Anti-Light Pollution filter

The Antlia Quad Band Anti-Light Pollution filter is designed to effectively reduce light pollution while capturing a wide range of deep-sky objects, including galaxies, reflection nebulae, emission nebulae and star clusters. It works with both color (OSC) and monochrome cameras, and is compatible with high-speed optics up to f/2.

Key features

Targeted elimination of polluting lights (high-pressure sodium and blue LEDs)
Capture over 95% of deep-sky objects
Simultaneous transmission of Ha, SII, OIII, H-Beta and NII lines
High transmission (>92%) at all major emission wavelengths
Near infrared (NIR) transmission to detect signals inaccessible to other filters
Compatible with ultra-fast lenses up to f/2 without significant loss of performance
Natural color balance for easy post-processing
One-piece, unglued optical substrate
Optical surface quality S/D 60/40 (MIL-O-13830)
Transmitted wavefront: λ/4 or better
Parallelism: less than 30 arcsec

Spectral Specifications

H-alpha: 656.3nm (>92%)
SII: 671.6nm and 673.1nm (>92%)
OIII: 495.9nm and 500.7nm (>92%)
H-Beta: 486.1nm (>92%)
NII: 654.8nm and 658.3nm (92%)
Out-of-band blocking: ≥OD4 from 300 to 1050nm
Filter thickness: 2mm ± 0.05mm

Filter design

Ultra-thin cell for reduced vignetting
Standard Antlia ring: 1.25″ (M28.5×0.6) and 2″ (M48x0.75)
Durable black anodized finish
Resistant laser engraving (non-fading)

Ideal applications

Astrophotography of galaxies, emission and reflection nebulae, star clusters
Use from heavily polluted skies (Bortle 8) to clean skies (Bortle 1)
Optimized for cameras with AR glass, to capture both visible and near-IR images

Recommended use

Compatible with OSC color and monochrome cameras
Ideal for cameras without internal UV/IR cut (AR glass)

Not recommended

Solar imaging
Visual observation at night

Safety warnings

DO NOT use to observe the Sun directly.
Serious eye damage may result from improper use.

Filter selection

2" Mounted, 36mm Unmounted

Why choose Deep Space Astronomy?

Because astronomy is our passion! Our team of experts is here to guide you in your choice of equipment, from beginner telescopes to the most sophisticated astrophotography equipment.

Personalized advice: Take advantage of our expertise to choose the ideal instrument for your needs and budget.
A wide choice of products: We offer a rigorous selection of quality equipment from the leading brands on the market.
Customized training: Expand your knowledge of astronomy with our online and face-to-face training courses.
Responsive after-sales service: We're here to help you make the most of your experience.

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