Color Magic Ultra E 2" Duo-band Filter Package
Askar
From $1,199.00
2 stores
The Askar Color Magic Ultra E 2" Duo-band Filter Package is a professional narrowband imaging solution comprising two complementary filters (E1 and E2) designed for one-shot color (OSC) cameras. The E1 filter transmits Hydrogen-alpha (Ha) and Oxygen-III (OIII) wavelengths, while the E2 filter captures Sulfur-II (SII) and OIII, allowing astrophotographers to capture all three narrowband channels and create stunning Hubble Palette-style images comparable to monochrome camera results. With ultra-high transmittance over 85% and exceptional halo control through asymmetric bandwidths (one at 3nm, the other wider), these filters excel at suppressing light pollution and revealing intricate nebular details even in urban skies. Compatible with full-frame sensors through standard 2" M52 threads, this set offers a practical, cost-effective alternative to traditional triple-filter monochrome camera setups.
Specifications
| E1 Filter - OIII Wavelength | 500.7 |
| E2 Filter - SII Bandwidth | 4 |
| E1 Filter - Ha Bandwidth | 3.7 |
| E2 Filter - SII Wavelength | 672 |
| Sensor Diagonal Coverage | 44 mm |
| Thread Type | M52 (2 inch threaded) |
| Optical Coating | Dual-coated |
| Ideal For - Supernova Remnants | ✓ |
| E2 Filter - OIII Wavelength | 500.7 |
| OD Rating | OD5 |
| Ideal For - Emission Nebulae | ✓ |
| E1 Filter - Ha Wavelength | 656.6 |
| Ideal For - Planetary Nebulae | ✓ |
| Filter Type | Dual-band Narrowband |
| Filter Diameter | 2 mm |
| E1 Filter - OIII Bandwidth | 4 |
| E2 Filter - OIII Bandwidth | 3.7 |
| Peak Transmittance | 85% |
| Surface Finish | 60/40 |
| Alignment Precision | 30″ |