Eta Carina Nebula 4-inch apo refractor at f/4.5 20 minute exposure 3M Scotchchrome 400 film pushed 1 stop to ISO 800 Taken in April 1993 from Las Campanas Observatory in Chile. Film was the best slide film of the day but was pretty grainy. Mild glow layer added in Photoshop (at 40% level) to soften and smooth out film grain background.
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.
