Hot Item Chroma Oiii 3nm Narrowband Filter - 2-inch Bonkers Deal: 80% Off [EK54Hm8T]

Hot Item Chroma Oiii 3nm Narrowband Filter - 2-inch Bonkers Deal: 80% Off [EK54Hm8T]

The Chroma OIII 3nm Narrowband Filter is a cutting-edge astronomy tool designed for those who seek to capture the beauty of ionized oxygen atoms in nebulae. This 2-inch filter is an essential addition to any astronomy enthusiast's equipment, allowing for stunning images even in heavy light polluted areas or during moonlit nights.

Optimized for F/3 Beams One of the standout features of this filter is its optimization for F/3 beams. Chroma has meticulously adjusted the center wavelength slightly into the red, ensuring that the filter shifts slightly to the blue when used in an F/3 beam. This innovative design maximizes transmission at the nominal wavelength, providing superior results for those with fast focal ratios. For beams faster than F/3, we recommend using 5nm-wide or wider bands for optimal performance.

Experience the quality that Chroma is renowned for with their durable, sputtered hard coating and single substrate glass. This filter boasts a transmitted wavefront better than 0.25 waves/inch, ensuring sharp and clear images. The front surface features primary filter coatings, while the rear surface is treated with anti-reflection coatings to prevent ghosting and maximize transmission.

• Parfocal for systems f/4.0 or slower
• Transmitted wavefront better than 0.25 waves/inch

Made in America, this filter comes with a complimentary TPO Filter Case (OS-CF2) to keep your equipment safe and secure.