Here are two dark nebulae by David Murray, taken with his FS98 refractor and ASI533 camera, using an Optolong L-Quad filter. The first nebula below is an 11.3h exposure of LDN438 in Lacerta, with a beautiful little spiral galaxy PGC 69439 in the top right corner!  This is one of the nicer versions of this nebula if you compare with others on the web. Nice job Dave!