[Bolts_Tweed (Mark)]

This is the same Ha data with a bit more adjustment to the HDR (described in previous post) and R, G, B from the weekend

Data blended as :
Lum Ha + R (Lighten) -then Lum applied at 40%
Red (20 x 3 min) + 30% Ha
Green and Blue 20 x 3 min

I was worried about the colour gradient between the lower left and upper right but examination of the longer Ha images shows this whole region (below a top left to lower right diagonal) to be faint Ha causing the red cast. Decided not to process it out - looked too clipped if I did.

* Scope: Televue np 101is
* Imaging device: SBIG ST8300 with Astronomik 6 nm Ha and Astrodon E Series RGB
* Mount: EQ6
* Guiding: PHD, QHY5 Orion short tube 80
* Exposure details: Ha is a HDR blend of 1.5, 2.5, 5, 7.5 and 10 min subs (10 of each) - RGB 20 x 3 min subs on each blended as above
* Stacking method: no flats subtracted, SBIG Series dark on each exposure run (I refocus after 6 so a series dark every 20+ minutes or so)median stack in Maxim 80% normailisation
* Summary of post processing: Colour combined and blended in CS3, DBE, ACDNR , Histogram Stretching and Colour Calibration in Pixinsight - final tweaking in CS3 (Saturation mainly)
Darkness of imaging site: Pretty dark between the clouds (Leyburn) & Brass Monkey Cold (Camera at -25 degrees)
* Date(s) image taken: 05.07.10 Ha and 09.07.10 RGB

Can someone confirm - i've just calibrated a new monitor at home and when I look at this image on the work computerit is all washed out - far too bright - does it look too bright to anyone else? If so my calibration by Adobe Gamma is obviously wrong - the original process was probably just slightly clipped - PM would be ok if necessary

Mark Bolton