We are here to help
Monday to Saturday - 10:00am-4:00pm

Askar ColourMagic 6nm Duo-Band Filter D2 (OIII + SII)

(Inc. 20% VAT)
Loyalty Points: 320
Out of stock, please contact us for an ETA
Product Code
Email us a question about this Product
Askar ColourMagic 6nm Duo-Band Filter D1 (OIII + Ha)
Askar ColourMagic 6nm Duo-Band Filter D1 (OIII + Ha)

Askar ColourMagic 6nm Deep-Sky Duo Narrowband Imaging Filter D2 (OIII + SII) 2"

For all astrophotography enthusiasts, filters are one of the indispensable accessories to achieve perfect deep-sky imaging. The dedicated astronomy filters for deep-sky imaging can effectively eliminate the influence from the background light and enhance the contract of your photographs and make the targets displayed more clearly and delicately. Askar’ s new-launched 6nm deep-sky Duo-narrowband Filter set colour Magic is a professional astrophotography tool specifically designed for deep-sky imaging.

This 6nm filter set has a narrow bandwidth. Therefore, even if your are at an area affected by the urban light pollution, night glow and other undesired light, you can capture high-quality deep-sky pictures with the help of the Askar 6nm Duo-narrowband Filters. The narrower bandwidth and efficient light transmission considerably enhance the contrast of your pictures, making it easier to display the details of the stars that otherwise are fairly difficult to spot.

At the same time, the Colour Magic 6nm deep-sky Duo-narrowband Filter has very good halo-control, providing more contribution to your astrophotography.

While most of the commercially available duo-narrowband filters for deep-sky astrophotography are in the Ha and OIII bands, ASKAR offers another structure: SII & OIII.

When shooting deep-sky galaxies with colour cameras, a duo-narrowband filter in the Ha and OIII bands is often used; whereas with a mono camera, a narrowband filter in the Ha, SII and OIII bands is often used, leaving users with colour cameras missing one band of nebula detail. This can be compensated by using SII and OIII duo-narrowband filters mentioned above.
The Askar 6nm Duo-narrowband Filter (OIII & SII) has an ultra-high transmittance over 90% at its centre wavelength (500.7nm and 671nm). Askar 6nm Duo-narrowband Filter (OIII & SII) can effectively eliminate the influence of light pollution. Even if you are in an area seriously affected by light pollution, the pictures taken with the Askar 6nm Duo-narrowband Filter (OIII & SII) are still very good. It is so practical and efficient that you can get astronomical images of high quality with just one duo-narrowband filter and an ordinary astronomical colour camera.
The Askar 6nm Duo-narrowband Filter (OIII & SII) is ideal for photographing emission nebulae, planetary nebulae or supernova remnants, and has a very high transmittance at the central wavelength. The highly narrow bandwidth of the filter effectively blocks out the effects of light pollution or other distracting factors such as night glow.


Specifications: Askar ColourMagic 6nm Duo-Band Filter D2 (OIII + SII)

6nm Duo-narrowband Filter (OIII & SII) 2”
FWHM: 6nm
CWL: 500.7nm & 671nm
Peak transmittance:90%
Thickness:1.85 ± 0.05mm
Barrier property:≥OD5 @ 200-1100nm
Surface finish:60/40

What's in the Box

What's in the Box: Askar ColourMagic 6nm Duo-Band Filter D2 (OIII + SII)

Reviews (0)

Be the first to Write a Review for this item!


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.

For more information please click here

FAQ - Have a question about this product? Fill in the form below and we will get back to you as soon as we can!

Also Bought
ZWO 2" EFW 5/7-position Filter Wheel for 2" Filters
From  £318.00
ZWO BC230 Counterweight Bar for AM5 Mount