IC 1396, best known as the Elephant’s Trunk nebula is a very bright concentration of gas and dust within the region of Cepheus. This was my first capture of 2021 with the new ASI2600MM camera. I was impressed with the capabilities of the IMX571 mono sensor.

I choose a different framing for the Elephant’s trunk, in the classic SHO palette. The image is composed of 4.5hrs integration of Ha, Oiii and Sii each.

High resolution image here

Detail of the “Trunk”
A very dramatic starless B&W interpretation

Processing details


  • Calibration, weighting, alignment, integration (drizzle integration vark 1.5), crop, Integer downsample 2x
  • Crop
  • LinearFit Ha and Sii maters to Oiii


  • EzDecon
  • Integer downsample x2
  • EzDenoise
  • HT stretch
  • Enhance nebulosity
  • LHE with background mask
  • EzStarReduction


  • ChannelCombination
  • Integer downsample x2
  • HT stretch
  • EzStarReduction
  • LRGB combination with SLUM
  • Curves and masks for color adjustments
  • EnhanceDarkStructures script


  • Enhanced saturation and contrast
  • Non linear noise reduction protecting stars
  • various curves, contrast and color adjustments with masks

Caprile Observatory

Caprile Astronomical Observatory, Astrophotography, located in Tuscany (Italy) countryside. A photographic journey across the marvels of the universe | Galaxy | Nebulae | Deep Sky Objects