Eta Carina Nebula and surrounding clusters, taken from Coonabarabran, Australia, March 15, 2007. With 77mm Borg astrograph at f/4.3 and Hutech-modified Canon 5D camera at ISO400 for stack of 6 x 10 minute exposures under warm +20° temps.
Eta Carina area with clusters, with Hutech-modified Canon 5D camera with 135mm f/2 Canon L lens at f/4 for 6 minutes each at ISO400. Stack of 4 exposures, averaged stacked. Taken from Queensland, Australia, June 2006.
NGC 3372 Eta Carinae Nebula. Taken with 4-inch AP Traveler apo refractor at f/4.5 with Canon 20Da camera at ISO 400 for stack of 4 x 10 minute exposures. Taken from Coonabarabran, NSW, March 27, 2007. Compare to version shot with 5D camera at f/6 with similar field size to compare red sensitivity and color balance.
