ALP-T Dual Band Narrowband Filter - 2 Mounted

The Antlia ALP-T dual band 5nm filter is a specialized filter that can be used with both one-shot color (OSC) cameras such as DSLRs or astronomical OSC cameras. It also functions as a narrowband filter for monochrome cameras, reducing the time required for imaging. With advanced multi-coatings, the ALP-T ultra dual band filter effectively isolates the red Ha and blue-green OIII lines of light from emission nebulae, while also minimizing unwanted wavelengths from light pollution, moonlight, and airglow with an optical density (OD)4.5. This results in a superior signal-to-noise ratio and better contrast in your images, enabling the capture of the two main emission nebulae bands at the same time while suppressing unwanted light pollution.

As a result of these features, the Antlia ALP-T dual band 5nm filter simplifies post-processing efforts by allowing you to capture cleaner data and reducing the need to isolate faint details from background light pollution. Despite looking golden yellow to the naked eye, the ALP-T dual band 5nm filter is also known as the Golden filter.

Application and Performance: - Specifically engineered for use with DSLR, CMOS, and CCD color cameras - Significantly suppresses unwanted visual wavelengths (OD)4.5, resulting in higher signal-to-noise - Steep bandpass edges reduce internal reflections - Ideal flat-top and moderate bandpass that minimizes spectrum down shifts - Utilizes Ion Gun Assisted Deposition coating technology for consistent and accurate light pollution suppression - Performs well at focal ratios faster than F3.0, with contrast increasing as focal ratio increases - Designed to suppress artificial lighting from Bortle scale 1 to Bortle scale 8, blocking Near Infrared (NIR) light up to 1100nm

Filter Ring: - 2’’ (M48*0.75) - Ultra-thin filter cell minimizes vignetting while maximizing clear aperture - Black Anodized Finish - Laser Engraving with no fading

In summary, the Antlia ALP-T dual band 5nm filter is a versatile filter that enhances the clarity and quality of astronomical images, making it an ideal tool for astrophotography.

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