Antlia ALP-T Dual Band 5nm Ha&OIII Filter

Antlia ALP-T Dual Band 5nm Ha&OIII Filter

The Antlia ALP-T dual band 5nm Ha&OIII filter is a dual line-pass filter designed primarily for one-shot color (OSC) cameras like DSLRs and astronomical OSC cameras. It also works as a narrowband filter for monochrome cameras, saving valuable imaging time. The advanced multi-coatings isolate the red Ha and blue-green OIII lines while suppressing unwanted wavelengths from light pollution, moonlight, and airglow, resulting in superior signal-to-noise ratio and contrast.

The filter allows for capturing two main emission nebulae bands simultaneously while reducing light pollution, helping to capture cleaner data and reduce post-processing efforts.

Application and Performance:

• Engineered for use with DSLR, CMOS, and CCD color cameras
• Suppression of optical density (OD)4.5 on unwanted wavelengths enhances signal-to-noise
• Steep bandpass edges minimize internal reflections
• Ideal flat-top and moderate bandpass reducing spectrum shifts
• Ion Gun Assisted Deposition coating for consistent light pollution suppression
• Suppression of artificial lighting from Bortle scale 1 to 8
• Blocks Near IR (NIR) up to 1100nm

Technical Specifications:

Other Information:

• Use with Antlia ALP-T Dual Band 5nm SII&Hb filter recommended
• Spectrum Curve
• Filter Ring: 2’’ (M48*0.75)
• Ultra-thin filter cell to minimize vignetting
• Black Anodized Finish
• Laser Engraving (No Fading)

Not Recommended:

• Solar imaging
• Night visual observation

Not Permitted:

• DO NOT LOOK AT THE SUN WITH THIS FILTER
• Serious eye damage will result if you fail to observe the warning.

Additional Independent Tests and Reviews:

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Target Examples (Captured with Antlia ALP-T Dual Band 5nm Filter):