SVBONY SV260 Multi-Bandpass Filter

SV260 multi‑broadband filter is a 5‑bandpass light pollution filter for deep‑sky photography, galaxies, reflection nebulae, starfields and more Single‑thread 2‑inch format with M48×0.75 mounting Substrate thickness 2 mm Clear aperture 44 mm Wavelength range 300‑1000 nm Peak transmittance ≈ 90% Blocks many common light pollution and emission lines OD4 cut‑off in UV and IR regions Also strong blocking at Hg, Na and in the near infrared region

Technical Specifications

Specification	Detail
Filter Size	2‑inch
Substrate Thickness	2 mm
Clear Aperture	44 mm
Wavelength Range	300‑1000 nm
Peak Transmittance	~ 90%
OD Blocking Specifications	>OD4 @ 350‑400 nm • >OD2 @ Hg 589 nm, 435.8 nm • >OD2 @ Na 589.6 nm • >OD1 @ Hg 546.1 nm • >OD2 @ Na 615.4 nm • >OD3 @ Hg 577 nm • >OD4 @ 720‑1100 nm
Surface Quality	60/40
Surface Parallelism	1/2 λ
Thread	M48 × 0.75 single thread
Net Weight	~ 12.5 g