8 x 7 minute + 8 x 2 min + 8 x 1 min + 8 x 30s + 8 x 15s + 8 x 5 s exposures at 800 ISO, this image was made on September 11, 2007 in Puimichel in the south of France.
Processing was done in PixInsight, the stacks were stacked using HDR Compositing, dan after that treated with HDR Wavelets to compress the dynamic range.
Processign was done nearly 5 years after the images were made... PixInsight is a very powerfull tool for processing astronomical images.
Click in the image for a full size version. Modified Canon 350D, and a 20cm (8") F/2.75 ASA Astrograph.
8 x 7 minute exposures at 800 ISO, this image was made on September 11, 2007 in Puimichel in the south of France.
This image was made with a modified Canon 350D, and a 20-cm (8") f/2.75 ASA Astrograph.
8 x 7 minute + 8 x 2 min + 8 x 1 min + 8 x 30s + 8 x 15s + 8 x 5 s exposures at 800 ISO, this image was made on September 11, 2007 in Puimichel in the south of France.
This is a layered stack in Photoshop, first try, but it is not good enough, still lots of detail are visible.
The same stack, now processed with Photomatix to get a very soft result with details from core to the outer edges.
This is a 50% size image.
My first attempt at a mosaic, August 12, 2007. Some seams are still visible and the core is burnt out, so I will have to do it again! The complete mosaic is 17 MegaPixels.
4 tiles of 3 stacked exposures of 3 minutes each made at 1600 ISO with a modified Canon 350D, and a 20-cm (8") f/2.75 ASA Astrograph.
