A high dynamic range composition of the M42 region. Composite image of seven exposures, from 30 minutes with a Takahashi Epsilon 180ED f/2.8 telescope, to 2.5 seconds with a Skywatcher 80ED f7.5 refractor.
Mouseover: Original Data
Takahashi Epsilon 180ED f2.8 - 30 min
Takahashi FC100 f8 - 30 min
Takahashi FC100 f8 - 10 min
Takahashi FC100 f8 - 2 min
Skywatcher 80ED f7.5 - 30 sec
Skywatcher 80ED f7.5 - 10 sec
Skywatcher 80ED f7.5 - 2.5 sec
Processed Data
Mouseover: HDR composite image after nonlinear histogram transformation.
Mouseout: Same nonlinear image after HDRWaveletTransform.