Hi there,
I think one should have been asked in astrophotography section but can’t post there as I am not this group member (yet).
Anyway would appreciate any help and advice.
I Have been using O-GPS1 on my K5II for some time now and really like it even if still quite faraway from mastering it. Its tiny and does nice job when calibrated properly, handy little thing for nightscapes or astro. The only biggest issue I see is playing with noise reduction. From what I understand the best results are achieved by image stacking plsu some dark(white,grey) frames.
As it is moving sensor only it resets its position every shot which make shooting proper stack well…let’s say quite difficult. I’ve tried just 6 shots for this purpose the other night at 1m40s and during this really short session stars “moved” significantly to the point it would have to be badly cropped for alignment and pros are using stacks of 20,40 and more shots.
Adjusting camera position manually every couple minutes might work better or worse when shoot really wide still far from being perfect. So I am wondering what could be done in NR department here :
Lower the ISO by getting brighter lens ? I shoot sigma 10-20/4, or 17-50/2.8 so far (planning on using my 55-300 and 150-500 as well at some point)
Get proper tracker like iOptron or Vixen Polarie this would make stacking session a breeze (I think I will need some sort of timing sequencer or whatever it is called as staring at the phone timer for hours using remote does not look like fun, I would rather lay down and enjoy the sky
)
Any other really good ways of handling noise? I always do the postprocess PS denoising even using plugins like Topaz will and results are quite weak comparing to properly stacked images.
Any advice of Astrotracer users on handling noise will be appreciated.
I have a small budget at the moment that will let me buy vixen or maybe brighter lens not both
I think I should go with tracker so I could use all my lenses for astro, unless there are ways, tricks to shot stacks or denoise images I should still learn and master (I am quite new to astro so I might be missing something).
Many thanks!