IDAS 6.8nm Ha Filter STD F3.5+

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About this product

IDAS have reintroduced their range of Ha Narrow Band Filters.

This is the 2.5mm Thickness F3.5 and slower version

Features

• 6.8nm FWHM
• IDAS-proprietary flat-top design
• F1.6-capable – high transmission in high speed optics
• 3 classes available – F1.6 to F2.2, F2.0 to F3.5 & F3.5 to any
• Fully blocks up to 1200nm
• 50.8mm, 52mm mounted and drop-in available
• 2.5mm and 3.0mm glass thickness. 2.5mm is par-focal with other IDAS filters and 3.0mm is same as other high-end brands available in the market
• Fully produced in Japan
• Lint- and dust-free packing. No wrapped by a paper.
• Individual inspection and measurement

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