IDAS Ha 6.8nm Filter Class STD (3.0mm)

IDAS Ha 6.8nm standard version, which is suitable for most of telescopes

• Ha 6.5 +/- 0.1nm (measured value)
• 98% transmission rate (measured value)
• Class STD
• 3.0mm thickness
• Optimized from F3.6 to any
• Fully blocks up to 1200nm as illustrated in the plot
• Each filter is individually inspected and measured for quality
• Comes with the actual measured plot with the unique product code(except 36mm)
• Made in Japan
• IDAS is a trademark of ICAS Enterprise, Japan

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