Quote:
Originally Posted by sil
2 - worryingly the APP stars all show a vertical streak artifact I have yet to see in any of my testing. PI is much better and shows my lens was out of focus, no hint of those streaks (they are not in my lights either). I think this is an integrationartifact of the default settings of APP, again this is the first time I've seen this so it doesnt confirm my earlier observations of better strs than PI.
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Ok, hands up here. I reprocessed this data with PixInsight and those streaks came back. This set of data is not one I took quickly just for this test, insomnia gave the chance to get outside early for some data collection. After writing the above I'm done comparing the two for now and so processed the data more seriously my usual way. Whereas as mentioned above I was trying to keep default settings in both programs for the comparison, not optimal settings (which may not exist, I am forever tweaking and testing mine to matchmy gear and data for the way I want to work. So the streaks came back. Last time I stepped through viewing the jpegs from my camera and the streaks arent visible (still not this time either), but this time I threw ALL the RAWS into pixinsight and zoomed in, a time consuming process and found three frames where there was a small streak from vibration, it was in three positions and added to make a long streak. So i deleted those frames and reprocessed my preferred way and all good again.
So my bad blaming the programs and making false assumptions when it was in my data after all . Sorry. So I dont know if i can conclude APP was better after all at recognising the signal was an outlyer to be removed or if it removes more signal out of the box (remember the context of my comparison is how it works by default, since little documentation or use I can't try it at its best potential since I just dont know how yet. In PI I go for quality and I err on the side of caution when choosing values that remove signal so more tweaking on my part there... the constant search for perfection
New APP out last night too, tons of changes that could effect all my negatives above too. I think I'll wait for releases to settle and I feel its at last a "final" before comparing again.