> Clarity function in Photoshop for landscape

  • Posted on: 4 November 2015
  • By: tihomiry

We can check what is like to process day shot with similar to astrophotography techniques. It is cloudy in Bulgaria for the next week or so and I took shots of the nearby mountain trough the fog with 200mm lens. The fog has similar effect to the earth atmosphere by blurring the image. To observe the stars from the earth is similar to look from the bottom of a pool as the atmosphere cause severe image degradation due to the turbulence.
For the day shots we should not worry for the noise so much as we shoot at low ISO. Even, if after processing some comes up this could be more like an effect to the photo. Most of the best photos has even added noise to look more natural.
So here is a single frame as it shot and compared to the processed result. The processing is as follows:
1. Use clarity to increase contrast of the mid tones
2. Touch a bit saturation and especially reduce the blue channel but not the luminense. There is a blue peak that I want to reduce. I do not want to shift it towards light or dark with the luminense setting, as I will change the color balance. I want to show some green from the treas
3. Touch the curves to correct the shadows and highlights and increase the histogram width thus the dynamic range of the photo (This is the common astrophotography technique). This usually increase the noise dramatically.
As a result we got much more clear image with details in exchange of few noise that we will keep :)


Nowadays we are so into the globalization and technologies, that I can submit observation plan to a remote, professional observatory at the other part of the word!

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.