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Home Accessories Diagonals Telescope Diagonals For Astronomy Baader 2 Inch BBHS Mirror Diagonal with 2 Inch ClickLock Clamp
Premium 2" BBHS star diagonal with 2" ClickLock terminal and black case. Provides greatest reflectance over most spectral range from 390 to 2000nm Much higher in brilliance than standard dielectric coatings with far less scatter. BBHS is Broadband Hardsilver coating with dielectric protective overcoating. T-2 BBHS-Sitall zenith mirrors on both sides with T-2 Photo thread.
BBHS coatings are widely regarded as the best in terms of reflectance, brilliance and colour rendition, this premium optical coating combined with the renowned clicklock system results in the best optical and mechanical contructed diagonal available from Baader.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. 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.