Hi All, I am looking for some advice regarding Landscape Astro shots. I recently managed to get away from my densely populated area and took a few shots of a slightly darker sky (Egypt Red Sea). Here is what I did. First I took a shot from the Hotel Balcony overlooking the whole area with my 9mm bodycap (looong exposure). I bracketed it just to be sure (40sec, 20sec and 80sec). Then I went to the beach and took shots of the sky with no foreground at all intending to merge things. I did not have my P7-14 with me but would probably want to use it in future as 20mm seems way to close for getting enough sky in. This would also make it easier to compose background and foreground in one go but wasn't possible here due to the insane amount of lights in the hotel area itself. I took 10 exposures at 15sec ISO4000 with long exposure noise reduction on. I manually focused on the stars but I might have missed focus anyway. Now back at home, here is where the problem starts. Is there any good (and easy to use) stacking software for mac. DSS seems to not work that well with the ported version (I just got a bunch of coloured streaks back). I would be willing to pay some money but probably not more than 50€ seeing how I only get away to darker skies every once in a while. I've therefore processed just one image in lightroom and then blended it with the hotel shot. This is the shot: Are there any things I could do to improve this (either when shooting or in post). Is there a good and easy working solution for mac? Googling found me starry landscape stacker, but with no test version available I am not willing to spring 20€s without at least a good review. I prefer freeware and I am willing to go through a learning curve if there are reasonable tutorials available, but with DSS on mac I just wasn't sure if it was me or the programme when I tried to follow some tutorials. In terms of exposure: Do you have to shoot dark frames on location or is one that uses the same exposure values done anywhere good enough. I'Ve also read about Bias Frames and have no idea what they are. Sorry for the long and probably slightly convoluted post but maybe someone can help me get some answers.