I was able to capture this back on March 4th as Mars passed near the Pleiades. Acquisition info below.
- Camera: Stock Canon 80D
- Lens: Sigma 70-200mm f/2.8 USM @ 135mm and f/5.0
- Tracker: SkyWatcher Star Adventurer on Manfrotto tripod
- Accessories: dew heater on lens, DIY Bahtinov mask courtesy of a Folgers can, remote shutter release
- Lights: 83 x 147" at ISO 200 into DSS, best 80% = 66 stacked, **1 hour 37 minutes total integration**
- Darks: 32 x 147”
- Bias: Master bias
- Flats: White T-shirt method x 32
- Sorted and rejected shots in Lightroom.
- Stacked best 80% in DSS
- Imported to PS
- Crop out bad edges
- 32->16 bit
- lots of incremental levels adjustments
- set gray point in levels with 11x11 color picker
- create synthetic flat by removing targets and using Dust and Scratches filter, apply to image - subtract, masked out some areas
- more curves and levels
- saturation and vibrance
- save 16 bit tiff
- Import back into Lightroom
- aesthetic adjustments like slight color tweak, highlights, clarity, noise reduction, final crop
- export jpeg
This was a really fun project and I was surprised at how well it turned out!