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Model: idas_SHO30STD_36Part Number: SHO30STD-36
The IDAS H-alpha 6.8nm. OIII 6.0nm and SII 6.3nm Sets are available in various sizes and classifications – STD or UHS.
The following sizes are available
The UHS set includes the UHS Ha and Sii Filters and Standard OIII Filter.
The 2.5mm thickness filter is compatible with other IDAS filters for example the LPS series while the 3mm is par-focal with other premium brands.
Standard Filters are designed for F3.5 and slower optical systemsUltra High Speed Filters are designed for F1.6 to F2.2 optical systems.
tested at f1.9. This was what my mono hyperstar setup needed.Only had an hour window in the clouds but 30 mins of oii and 30 mins of Ha pulledin alot of data.It was alot of money but no regrets.