Considering the high quantum efficiency (QE) characteristics of the latest cameras in the near-infrared region and taking into consideration that this region is less susceptible to artificial light pollution, the Antlia Quad Band Light-Pollution Filter adds high transmission in the near-infrared (NIR) band. This spectrum design improves the image signal-to-noise ratio and contrast by capturing signal in visible bands and NIR regions while maintaining good colour balance and being easier to manage in post-processing.

Full-spectrum objects like M51 and M83 possess significant signal in the near-infrared (NIR) region, so you can capture these deep sky objects with better contrast under light-polluted conditions.

When using this filter with a camera that has UV/IR cut protective glass, the visible band transmission signal is retained, but the IR cut limits your ability to capture targets with infrared signal.

Therefore, the Antlia Quad Band filter is more suitable for cameras with AR protective glass as they can capture both NIR and visible band signals.

• Anti-Light Pollution
• The Antlia Quad Band filter is an effective solution for reducing light pollution, as it cuts out most of the orange-yellow light from 589nm and part of the blue light from LED street lighting
• Useful when imaging over 95% of deep sky objects
• Unique spectral design offers more possibilities for astrophotography
• High transmittance of the main emission lines Ha/SII/OIII/H-Beta in the visible region enhances SNR and contrast
• Near-infrared (NIR) region transmittance
• Passing near-infrared region is for shooting deep sky objects that cannot be imaged with other filters without NIR transmission
• The broad bandpass is designed to cope with faster optics up to the f/2 focal ratio.
• Good colour balance
• It is easier to achieve colour balance by adding the short-wavelength transmission