Antlia LRGBR+ Dark Series Filters

AntliaSKU: ANT-LRGBR-DARK-36

Size: LRGBR+ Dark Series Set 36mm Unmounted
Price:
Sale price$669 CAD
Stock:
Only 1 unit left
Description

Antlia LRGBR+ Dark series filters

The Antlia LRGBR+ Dark series filters are designed with a full spectrum curve from 390nm to 1000nm, making it sensitive to both UV and IR light for high signal-to-noise ratio and contrast imaging in deep sky full-spectrum photography.

The LRGB dark series filters are made of quartz glass, which has exceptional thermal and mechanical properties due to its ultra-low thermal expansion coefficient. These filters offer remarkable durability for imaging and research in the most challenging environmental conditions.

Considering the high quantum efficiency (QE) of the cameras in the near-infrared bands, Antlia incorporates a Red+700-1000nm filter into LRGB dark series to capture valuable signals that cannot be detected by regular LRGB filters.

In post-processing, combine the R and R+ channels to create a new R channel. The remaining steps for processing are 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 they share the same quartz substrate and refractive index, resulting in better parfocality.

Filters Specifications:


Luminance UV/IR Cut filter

Red filter

Green filter

Blue filter

Red+ filter

Transmission Range

390nm-710nm

595-705nm

495-600nm

400-505nm

700-1000nm

Peak Transmission

97%

97%

97%

95%

95%

Substrate

quartz glass

quartz glass

quartz glass

quartz glass

HWB

Blocking

≥OD4.5 (0.005%)

≥OD4.5 (0.005%)

≥OD4.5 (0.005%)

≥OD4.5 (0.005%)

≥OD4.5 (0.005%)

Filter Thickness

2mm+/-0.05mm

2mm+/-0.05mm

2mm+/-0.05mm

2mm+/-0.05mm

2mm+/-0.05mm

 

The LRGB Dark series and R+ filters are available for individual ordering.

 

The main features and application:

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

High transmittance B filter95%,L-R-G filter97%this ensures that there is almost no loss in image signal, maximizing contrast;

Made of quartz glass, excellent durability and thermal stabilityas well as better fracture and scratch resistance, improved coating resilience to cleaning;

- More infrared signal to be found by combining Red+ filter;

- Out of band blocking specification is designed to OD4.5 (0.005%) to block interference from other wavelengths and minimize halos around bright stars;

Identical filter thickness to existing standards and double-sided fine polishing , with utmost care for parfocality

All Antlia filters are coated to the edge of the substrate and unmounted narrowband filters are edge blackened to eliminate internal reflections from stray light

- Filters are resistant to scratches;

- Warranty: 3-years against delamination.


Spectrum Curves:

图片1.png


Filter Ring:

Antlia standard thread:1.25’’ (M28.5*0.6),2’’(M48*0.75 pitch)

Ultra-thin filter cell to minimize vignetting by maximize possible clear aperture

Black Anodized Finish

Laser Engraving No Fading

 

Not Recommended:

Solar imaging

Night visual observation


Not Permitted:

DO NOT LOOK AT THE SUN WITH THIS FILTER

Serious eye damage will result if you fail to observe the warning.

Additional Resources
You may also like
Recently viewed