Great Orion Nebula

Celestron 8 @ f/6,3

No autoguide, manual dithering

131 light frames 25" @ 1600 ISO (Canon 450d aka Rebel XSi)

20 dark frames

1 bias

Processed in DSS, PS.

HDR obtained by the TIFF file with Luminance HDR.

SQM of the site 20,99

 

Qtpfsgui 1.9.3 tonemapping parameters:

Operator: Mantiuk

Parameters:

Contrast Mapping factor: 0.1

Saturation Factor: 0.8

Detail Factor: 1

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PreGamma: 1

 

A little note about this version:

Luminance HDR is one of the most powerful software I use for obtain HDR images also in Astroimaging... and is a freeware.

 

Done