Antilia LRGB-V series color astronomical photography filters

Antlia LRGB-V series is a color filter specially designed for deep space photography in monochrome cameras, we have designed this filter based on the sensitivity of the sensor based on the Kodak (KAF/KAI series), Sony (IMX series) and GSENSE series (which is also the chip used in today's mainstream astronomical cameras) used by QHY cameras (CCD and CMOS), you can use this set of filters to make a 1:1:1 exposure to RGB, Finally, in the post-production process, it is easier to get images with more natural color saturation.
Because the LRGB-V series emphasizes the filtering of light pollution, and we also emphasize the high permeability of the emission line, for galaxies, the unique weak emission line in the nebula, there is still a good emphasis effect.
The design of the LRGB-V series filters out the wavelength band near the light hazard point of 589nm, effectively filtering out the influence of urban sodium/mercury lamps, making their later colors more natural

Main uses and performance
Mainly used with monochrome camera CCD and CMOS,
Suitable for photographing deep-sky objects, nebulae, galaxies

A transmittance of over 95% ensures a sufficiently high luminous flux
AR anti reflection film design reduces the generation of secondary reflections and halos
The RGB design is almost 1:1:1, making colors more balanced and natural
In our production process, we use very strict quality control standards, use the same thickness of substrate, and have strict tolerance requirements, so the LRGB filter is almost equifocal. However, due to different atmospheric temperatures and optical systems, to ensure a perfect image, we still recommend re focusing every 2 hours,

We perform optical extinction around each filter and apply extinction ink, each of which is a manual operation to control stray light to the minimum range. This process requires a lot of time and effort, as it is a purely manual process

Our cut-off rate has reached a very high target, and high cut-off rate processing is very difficult. It requires better high-end equipment and continuously thickens the coating layer, prolongs the time and increases costs to complete. Cutting off does not require a frequency band, but instead uses the R channel, G channel, and B channel. The colors produced by these three channels are more pure and free of noise. Photos will have better contrast

This filter does not recommend visual inspection of deep space celestial bodies,
This filter is not suitable for observing and capturing the sun,
Product parameters:
Optical &nbsp.
d36毫米2英寸为2毫米+/-0.05毫米
Surface finish: 60/40 (in line with the US military table MIL-O-13830) 
Double-sided grinding and polishing
Face shape: 1/4 λ
Parallelism: 30 "
Tave＞95%
OD3 (0.001 or more) @ 300-1050nm
Double sided multi-layer nano coating
Single piece non bonded optical glass

size
无框:D36mm*2mm,
 

606311698999