Askar Color Magic 2" Ultra E1 Ha and OIII Filter
Check Out This Ha / OIII Duo-Band Filter From Askar!
Designed to bring the power of narrowband imaging to users of color cameras, this Askar Ultra E1 Filter isolates both Hydrogen-alpha (Ha) and Oxygen-III (OIII) in one go! The slim band passes block a significant amount of unwanted light, leaving behind stunning, crisp detail on emission nebulae. With this filter at your side, reveal intricate structure within the Cygnus Wall, resolve the delicate filaments of the Lagoon Nebula, and clearly define the Horsehead Nebula. What was once reserved for monochrome cameras, narrowband imaging is more accessible than ever before!
The Askar Color Magic Ultra E1 duo-band filter has an exceptionally narrow bandwidth (~3.7nm in Ha and ~4.0nm in OIII) and an ultra-high transmittance over 85% at its center wavelength (500.7nm and 656.6nm). Not only is this light blocking power wonderful for isolating specific wavelengths, but it’s also incredible for reducing the detrimental effects of light pollution. Even from the city, you can enjoy stark, crisp resolution on a host of celestial bodies. Precision crafted, this Askar filter effectively controls halos around bright stars for peak image quality, while the 2” threaded design enables seamless integration within your imaging train. With this professional astrophotography tool specifically designed for deep-sky imaging, you’re set up for success!
Take Your Deep Space Imaging to the Next Level
The Askar Colour Magic Ultra E1 2” Duo-Narrowband Filter is a high performance astrophotography accessory specifically designed for deep-sky imaging. With in-depth, precision engineering, this filter delivers outstanding images of the cosmos! Read on as we dive deeper into the aspects of this imaging filter.
Designed For Emission Nebulae
As their name suggests, emission nebulae are those that emit light, with Ha, OIII, and SII being the most common wavelengths radiated. Helping to isolate these wavelengths, this Askar E1 filter is specially designed to selectively transmit only Ha and OIII wavelengths with narrow bandwidths of 3.7nm ± 0.3nm and 4.0±0.3nm, respectively, enabling sharp detail to be picked up by your camera sensor. This selective filtering along the central wavelengths of 656.6nm & 500.7nm not only effectively inhibit man-made light pollution, but moon glow is also well-controlled, offering increased imaging opportunities! Even with a gibbous Moon present amongst urban city lighting, you can capture beautiful detail on star forming regions, planetary nebulae, as well as supernova remnants.
Extensive Compatibility
With its 2” diameter, the Askar Color Magic E1 Filter effectively covers sensors up to full frame in size, making it a perfect choice for a wide variety of imaging set ups. This standard size is compatible with the majority of filter wheels, filter holders, telescopes, and optical accessories on the market today! Also, the integrated threads deliver a secure fit and quick installation. This threaded design ensures your filter stays put throughout your night of imaging and prevents accidental misalignment for the utmost image quality.
High-Quality Construction
Thanks to Askar, you can expect maximum light throughput with the rated surface finish of 60/40. This precision craftsmanship is demonstrated through the high 85% transmittance rate for bright detail, a mark of optical excellence. Providing exceptional contrast, the barrier property of ≥OD5 @ 200-1100nm means this filter blocks ≥99.999% of the unwanted light from 200 nm (within the UV range) to 1100 nm (near-IR), leaving behind only the desired wavelengths. The premium build quality doesn’t stop there! This E1 filter features a parallelism of 30 arcseconds, signifying precise alignment of the two surfaces of the glass for sharp, crisp images with exceptional color accuracy. Halos around bright stars are well controlled, making this Askar Color Magic Ultra E1 Filter a must have imaging accessory within your astrophotography toolkit.
Astronomy Hub: Your one-stop-shop for Astrophotography Knowledge!
Our Gear Experts have compiled a wealth of information to help expand your astrophotography knowledge! Below you’ll find links to articles, videos and "how-to" guides. Just one more reason that our Astronomy Hub is a one-stop-shop for all your astronomy and astrophotography needs!
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