Askar Colour Magic Ultra E Duo-Band Filters (COLOUR-MAGIC-ULTRA-E)
Askar Colour Magic Ultra E Duo-Band Filters (COLOUR-MAGIC-ULTRA-E)
Products in the Same Family
Filter Option - Filter Package (E1 & E2 Filters)
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Product Description
The Ultra E Filter, as its name suggests, boasts "Ultra" halo control capabilities. During its development, we implemented special design optimizations, resulting in a unique filter with one passband at 3nm and another outside the 3nm range.
With the ColourMagic Ultra E Filter, you can capture high-quality deep-sky images even in areas affected by urban light pollution, atmospheric airglow, or other light sources. The narrower bandwidth and high transmission significantly enhance image contrast, making it easier to reveal subtle details of celestial objects that are typically difficult to capture.
Beyond the traditional Hα+OIII duo-narrowband filter, the ColourMagic Ultra E filter also introduces an SII+OIII filter.
We designate the Hα+OIII filter as E1 and the SII+OII filter as E2 filter. Together, they form the ColourMagic Ultra E Filter Set, offering color camera users a novel way to achieve results similar to those taken with monochrome cameras and triple narrowband filters—without the need for additional equipment. This opens up new possibilities for astrophotographers to enjoy even more astronomical wonders.
With exceptional halo control and innovative imaging solutions, the colourMagic Ultra E Filter helps you explore the deeper beauty of the Univers.
Specifications
| Filter | E1 OIII Ha | E2 OII SII |
| FWHM: | OIII：4.0nm±0.3nm Ha：3.7nm±0.3nm |
OIII：3.7nm±0.3nm SII：4.0nm±0.3nm |
| CWL: | 500.7nm & 656.6nm | 500.7nm & 672nm |
| Peak Transmittance: | 85% | 85% |
| Thickness: | 1.85 ± 0.05mm | 1.85 ± 0.05mm |
| Barrier Property: | ≥OD5 @ 200-1100nm | ≥OD5 @ 200-1100nm |
| Surface Finish: | 60/40 | 60/40 |
| Parallelism: | 30” | 30” |
E1 OIII + Ha Transmission Curve
E2 OIII + SII Transmission Curve
Customer Reviews
Between March and April, we had few nights of clear skies. So I decided to try the Askar Colour Magic filters. I tried the first one in March (E1) then in April (E2).
I used my Celestron RASA 8" f2.0 with the Starizona RASA 8 Filter Holder to mount the "E" filters. I mounted my ZWO ASI2600MC to the above Filter Holder.
My target was SH2-132 the Lion Nebula which is quite faint Nebula.
I took the following data:
71 E1 filter X 300s and 61 E2 filter X 300s for a total of 11 hours.
I used PixInsight for software as well as PhotoShop for few adjustments and the Signature.
The colours just popped while using PixInsight very little work required to get the colours I wanted.
I am very satisfied with the result of my picture using the Askar Colour Magic Ultra E1 & E2.
These filters are quite expensive but the result is outstanding. It's worth it for me.
Can't wait to try it on Nebulas that aren't quite so faint to see the results.
Additional Articles, Videos, and Links
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