An object well and truly off the beaten track.
SL4 is a dark nebula in the faint emission nebula Gum 17.
7.5 hrs Ha, 1 hr R, 1 hr G, 1 hr B BRC-250 scope, STXL-11002 CCD.
Higher resolution image here.
http://members.iinet.net.au/~sjastro/sl4c.html
Interestingly the Ha exposures reduced the contrast between the dark and emission nebula, a red filter used for luminance would have preserved the contrast much better.
Steven