Astrophotography

> Deep-Sky Hunter Star Atlas

  • Posted on: 10 March 2019
  • By: tihomiry

http://www.deepskywatch.com/deep-sky-hunter-atlas.html This is an amazing resource. Detailed atlas of all the sky with NGC and IC objects. All stars up to 10th magnitude. It is more detailed then any of the software available so far. I use it to plan observations and locate fainter objects.
You can print it and have it in your hands. Such an old school feeling! :)

> IR-cut filter removal improvement on Pentax K5

  • Posted on: 8 March 2019
  • By: tihomiry

I am so impressed with the K5 ability to quickly gather signal from nebulas (Quantum efficiency) and galaxies, so I decide to take one more K5 and to remove the IR-cut Filter of the old one. The same thing I have done in the past with Pentax KM and I got significant improvement of 2.5 stops. Here is a short article on that: http://planetarium-gb.eu/pentax_astrophotography.pdf

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This is a comparison of my not modified Pentax k5 DSLR and the same, but modified one without IR-cut filter.

Astrotracer is a great way to take advantage of the Pentax DSLR camera in-body shake reduction mechanism. It is available since Pentax k5 and track celestial bodies by moving the sensor. Here is what is it ablout:

Staying at my home inspires me to make some documentation of my experience. I got a dedicated drive for my astrophotos and start reorganize them by objects. Here is an article of the most recent process I use on my photos. Enjoy: )

For a few months from now Betelgeuse (Alpha Orion) dim so much, that it looks as bright as the stars in the Orion belt. This is not so disturbing and does not mean that cataclysmic events are happening with it.

For my last trip to the Rodopa mountain I decided to cross the limits and to target an object that is hard to believe that a non-professional equipment could catch.

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