Antlia LRGBR+ Dark series filters – 36mm unmounted

Description

The Antlia LRGBR+ Dark series filters are designed with a fullspectrum curve from 390nm to 1000nm, making it sensitive toboth UV and IR light for high signal-to-noise ratio and contrastimaging in deep sky full-spectrum photography. The LRGB dark series filters are made of quartz glass, which hasexceptional thermal and mechanical properties due to its ultra-lowthermal expansion coefficient. These filters offer remarkabledurability for imaging and research in the most challenging environmental conditions.

Considering the high quantum efficiency (QE) of the cameras inthe near-infrared bands, Antlia incorporates a Red+700-1000nmfilter into LRGB dark series to capture valuable signals that cannotbe detected by regular LRGB filters.

In post-processing, combine the R and R+ channels to create a new R channel. The remaining steps for processingare identical to those used as regular LRGB filters.

The LRGBR+ Dark series filters are best paired with Antlia SHO 2.8nm and 2.5nm Ultra Narrowband filters, as theyshare the same quartz substrate and refractive index, resulting in better parfocality.

Filters Specifications:

The main features and application:

– Full spectrum design enhances the sensitivity of imaging to both UV and IR light.

– High transmittance B filter≥95%，L-R-G filter≥97%，this ensures that there is almost no loss in image signal, <s