C4 aka NGC 7023 aka Iris Nebula: This is a beautiful target and I wish I could do it more justice. 124 x 90s @ ISO 25600 RAW format exposures taken 9/17-9/18 with the Canon EOS 6D DSLR, Backyard EOS, via the C8 guided with 80mm guidescope Basler firewire camera and metaguide on a CG5 mount on a tripod on grass with paver stones (how I long for a pier ;). I have to be really careful approaching and leaving the scope as my footsteps ruin subs. Stacked in Deep Sky Stacker no flats, bias, or darks. Processed in Photoshop CS6 with Noise Ninja 2 plugin and Star Spikes Pro.