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2″ BBHS prism star diagonal (BaK4 glass) with 2″ ClickLock clamp and black case.Provides greatest reflectance over most spectral range from 390 to 2000nmBBHS = Broadband Hardsilver coating with dielectric protective overcoatingMuch higher in brilliance than cheap dielectric coatings
Exclusively available on Baader Sitall Ceramic Mirrors and on selected Baader prism Star Diagonals: BBHS reflection coatings predominantly are being utilised on our highest quality grade 2″ BBHS Sitall Stardiagonals (#2456115 incl. black housing and 2″ ClickLock clamp) as well as on the BBHS T-2 Sitall Stardiagonal (#2456103) – where the housing features a male and female T-2 thread – for shortening the optical path with bino use, and to offer the utmost in adaptation variability as well as much more light throughput than with any conventional 1 1/4″ star diagonal. BBHS stands for Broad Band Hard Silver. When applied onto our Sitall (zero expansion glass-ceramics) substrates, these multiple deposited layers of hard silver are being sealed by a set of dielectric layers to achieve long term durability. With this advance in coating technology our BBHS coating lifetime equals that of a high quality AlSiO2 coating, matching the durability of standard aluminium coated diagonals (and telescope mirrors) which have been in wide use for many years. The BBHS spectral bandpass is much wider though, when comparing with our 50 layer all dielectric coatings utilized on the 2″ ClickLock Star Diagonals. The all dielectric coating system on the 2″ ClickLocks…
MANUFACTURERBaader PlanetariumSKU (#)2456117WEIGHT (KG)0.513OPTICAL DESIGNStar Diagonal PrismINNER CONNECTION (LENS SIDED)Thread, M48, M55, 2″ (50,8mm)OUTER CONNECTION (LENS SIDED)Barrel, Dovetail ring, S58, 2″ (50,8mm)INNER CONNECTION (EYEPIECE/-CAMERA-SIDED)Thread, Clamp, M55, 2″ (50,8mm)REFLECTION SURFACEBBHS coated, Dielectrically protectedAR-COATINGPhantom Coating GroupIMAGE ORIENTATIONErect image, Mirror invertedOPTICAL LENGTH (MM)100CLAMPING SYSTEMClickLockDEFLECTION ANGLE90INNER DIAMETER / CLEAR APERTURE (MM)47.5
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Category: Cameras and Photography:Telescopes and Binoculars:Telescope Parts and Accessories:Other Telescope Parts
Location: Ormskirk,, Lancashire