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The Explore Scientific S-II nebula filter blocks all other colors (and thus almost all artificial light) and only lets through the emission lines of the ionized sulfur at 672 nm
150mm Newtonian reflector telescope
From distant wildlife observation to precision spotting at extended ranges
Block 1 Blanchardstown Corporate Park
the National Geographic 300x-1200x Microscope offers powerful tools to examine specimens in detail
Dobsonian Shroud for 20" Truss Tube DOB Telescope 1.25 The Explore Scientific S-II nebulaKeep out stray and unwanted light from your 20" Truss Tube Dobsonian telescope with a lightweight light shroud. Keeping the path dark between your secondary and primary mirror will boost image contrast and brightness bringing out more details. Constructed of opaque black nylon with excellent stretch, each end of our DOB light shroud has an elastic band to keep the shroud in place and allow for an easy fit and installation. Breathable nylon will let
