M48
Standard 48mm Screw-in Mount. Extremely versatile screw-in mount (pitch 0.75mm) for telescopes and focal correctors.
Standard Astro Mount
The 48mm diameter screw-in (pitch 0.75mm) is the industry standard for astronomical equipment. It is screwed directly into drawtubes, reducers, and camera adapters.
High VersatilityHigh versatility ensures you can use the filters even when telescope setups change. IDAS provides M48 size options for all of its primary filter models.
Anti-Reflection FrameThe mount frame is precision machined with anti-reflective structures to prevent ghosting and internal reflections.
Mount Example
Specifications & Compatibility
| Thread Specs | 48mm diameter / Thread Pitch 0.75mm (48ST2) |
|---|---|
| Glass Thickness | 2.0mm |
| Compatible Systems | Telescopes, camera adapters, and reducers equipped with M48 threads |
| Production | Made in Japan by ICAS Enterprises |
Product Lineup & Purchase Guide
Available through authorized domestic online retailer (BASE) and dealer network.
NBZ-II 48ST2
[Primary Application] Standard telescope format. Dual-band nebula booster (OIII & H-alpha).
GNB 48ST2
[Primary Application] Galaxy & Nebula booster featuring high NIR bandpass.
DTD 48ST2
[Primary Application] Next-gen nightglow and urban light pollution cut filter.
NGS1 48ST2
[Primary Application] Base light pollution cut filter. Direct successor to LPS-D3.
HEUIB-ll 48ST2
[Primary Application] H-alpha enhancement UV/IR cut filter. Ideal for modified DSLRs.