> Milky Way in different filters

  • Posted on: 1 June 2020
  • By: tihomiry

This is a comparison of my not modified Pentax k5 DSLR and the same, but modified one without IR-cut filter.
Removing the IR-cut filter not only increase sensitivity by 1-2 stops, but also slightly increase the resolution as the IR light (despite not being that much detailed) pass trough the byer RGB mask without filtering.
Below we can see a shot with UHC-s filter as well, witch give us best contrast and brightness of the H-alpha objects as Lagoon nebula (M8). Thus it needs the longest exposure 120s against 60-90s for the other filters. You can see the beautiful Galactic horse dark nebula on the shots :)

Milky way in Sagittarius in different filters

Recently I started to use Siril for processing my images as I was shown a new tool for star extraction Starnet++.

Since beginning of 2023 Chat GPT was launched as a human language model and start a new era of technological development.

As may times I said it is essential to keep all your shots over the years, as you can go back and reprocess them.
Make new discoveries or improve the resulting image quality.

When we have a new newton telescope we shroud avoid touch the collimation of the secondary mirror as we may get into troubles.

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