Thanks Marco.
I saw a post on the TEC group where Percy Mui managed to make an adapter to fit his AP155TCC (a really high quality reducer/corrector - one of the best anywhere) to his TEC160FL.
I am thinking of making one. It probably would fit on the TEC140 as well.
That would give you F5.25 with perfect stars to the corners of a PL16803.
Greg.
Quote:
Originally Posted by marco
Hi Greg, I didn't use any selective color. I believe you are referring to the color of dust areas. That is coming completely from the RGB data. In fact the Ha only added the "glowing" red in the background, I applied it as pure red. OIII is not contributing at all to the background (basically it only contributes to the core). All other colors you see (brown, green, blue etc) are coming from the deep RGB. If you interested in the processing, from the assembled RGB did it most of it in PI: background neutralization, DBE, color calibration, histogram transformation, HDR wavelet, multiscale sharpening and noise reduction.
Than moved to PS, enhanced the saturation (Lab curves), blended in the RGB core data (processed apart with PI in the same way), added the Ha and OIII (lighten+screen, setting the hue as Ha=255 and OIII=195) and than some final (very minor) retouching. I would say >70% was in PI and remaining in PS. I am still learning how to use Pixinsight at full power, for sure this package makes a lot of thing easier and faster than Photoshop..
I would expect you get very similar data than mine with your setup, scale difference would be very little. What would actually make a big improvement is using your TEC180 and do a mosaic of the area with higher resolution and deeper details..
Clear skies
Marco
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