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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Author: Nicole Mortillaro - Royal Astronomical Society of Canada
14" EdgeHD Optical Tube Assembly
including a 2" dual-speed focuser
the finderscope
USB provides the power
Optolong L-eXtreme Dual 7nm Ha/OIII Narrowband Filter - 2" type-eyepiece-accessories Author: Nicole Mortillaro - RoyalThe L eXtreme filter from Optolong is 7nm dual band in that passes Ha and OIII emission lines. The advantage of the L eXtreme filter over the L eNhance, which is a tri band filter, is that there are no transmission between the H beta and OIII lines, as there is no nebula emission lines there. In this case, it isn't letting light pollution come through so that maximizes a nebula's signal and makes the sky background darker while imaging. The L eXtreme
