SV85s refractor (doublet) @ f 5.6 hypered Kodak RG 200 2X 60 min.  Joshua Tree                                 300 mm f.l. @ f 2.8, Provia P400F 30+20 min.  Joshua Tree                                                                                                                                                                                                                                                                                                        digital version  |  nebula index                                                                               © Stephen Pitt