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Antlia Triband RGB Ultra Filter - 2''
Antlia Triband RGB Ultra Filter - 2''
Antlia Triband RGB Ultra Filter - 2''

Antlia Triband RGB Ultra Filter - 2"

£188.00
(Inc. 20% VAT)
Loyalty Points: 188
In stock, Shipped in 1-2 working days
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Product Code
ANT-Triband-RGB-2
Brand
Antlia
Email us a question about this ProductAntlia
Description

The Antlia Triband RGB Ultra filter is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most substantial information in the RGB bands, that enables the Antlia Triband RGB Ultra Filter to shoot over 90% of deep sky objects. In addition to its excellent performance on emission nebula, what makes it different from other ultra-narrowband filters  is the ability to capture galaxies, reflection nebulae, and star clusters from a Bortle 8 location to Bortle 1 while presenting more balanced RGB colours in your images. Also, it has a broad bandpass designed to cope with faster optics up to f/2 focal ratio.

The quantum efficiency of the B channel in current CMOS sensors is often significantly lower than that of R and G channels. The Antlia team was able to design a filter with a more realistic colour balance for astrophotography from light polluted locations. The problem with the low blue wavelength efficiency becomes apparent when imaging reflection nebulae and blue stars. In CMOS sensors, the blue wavelengths also contain contribution from the stronger green spectrum, thereby affecting the balance of the blue colours. Many popular imaging objects contain reflection nebula with faint blue hues such the central part of NGC2264. Therefore, we designed  the Antlia Triband RGB Ultra Filter to not only retain the HSO emission signal but  to also increase the amount of Luminous flux of the blue B channel. By improving the blue wavelength transmission, the colours in the photo are better balanced and easier to manage in post processing.

Application and Performance:

  • Designed to shoot galaxies, reflection nebulae and star clusters.
  • Refined coating process makes the Triband RGB Ultra filters with excellent halo suppression and improved signal-to-noise performance.
  • It has been specifically designed for balanced color transmission using Antlia's experience in spectrum design.
  • The balanced transmission allows the minimal color cast to broadband emission objects such as stars, galaxies, and globular clusters.
  • The Triband RGB Ultra can be used with nearly all systems as fast as f/2 with minimal loss of efficiency or shifts in spectral response.
  • When shooting LRGB with mono cameras, unless you are wanting to image LDN (dark nebulae) the Triband RGB Ultra can be used as a luminance filter replacement for objects such as nebulae and galaxies to improve contrast and signal to noise ratio.
  • The Triband RGB Ultra is able to better isolate the H-alpha, O3 and blue spectrum from the background light pollution.
  • For visual use, Triband RGB Ultra filter ensures the high transmittance of the HSO emission line and can be used for observing deep-sky objects with large-diameter telescopes.
  • The filter provides excellent flexibility and compatibility with both OSC (colour) and Mono camera systems.
  • It facilitates the imaging of most astronomical objects using all optical configurations down to f/2 focal ratio.

Filter Cell (specifications for cell mounted filters only):

  • 2” (M48*0.75)
  • Ultra-thin filter cell to minimize vignetting by maximizing possible clear aperture
  • Black Anodized Finish
  • Non-Fading Laser Engraving

Available Sizes:

  • Mounted: 2” (2mm thickness)

Not Recommended:

  • Solar Observing and imaging
  • Visual observation

IMPORTANT! DO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.
Serious eye damage will result if you fail to observe the warning.

 

Specifications

Specifications: Antlia Triband RGB Ultra Filter - 2"

 

   H-alpha 

 S-II    

  O-III  

 NII   

Wavelength

  656.3nm  

  671.6nm,672.4nm  

  495.9nm, 500.7nm  

  658.3nm,654.8nm  

Peak Transmission

>92% 

>92%

>92%

>92%

Blocking

≥OD4@ 300-1100nm

Filter Thickness

2mm+/-0.05mm

 

 

 

What's in the Box

What's in the Box: Antlia Triband RGB Ultra Filter - 2"

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Delivery

At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.

For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.

In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

Should there be any delay in dispatching your order, we will notify you to keep you informed.

Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.

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