...Hubble Space Telescope Team are PhotoShop Gurus!
"Hubble images arrive as ones and zeros representing grayscale, digital photos taken with filters to block all but one color of light. The colors are added later with the popular Photoshop program."
The colors are accurate because the colors assigned to Hubble images come from spectrographic data.
The images are indeed amazingly beautiful!
Happy Holidays to All!
-P
Posted by Ed Cordes on December 21, 2008 at 2:20 PM
It is pretty common for Astrophotographers to make 3 images on a sensor capable of B&W but with Red, Green and Blue filters then combine them later in software that comes with the astro camera. Even serious hobbyist astro photographers have a "color filter wheel" between the cooled sensor and the telescope optical tube. It is also common for the camera to be cooled to avoid noise etc from ruining images made over long periods - like 30-60 minutes or more!
At one time I was into this, but the weather in the Northeast creating a lot of cloudy skies and early morning patients convinced me that I was not getting much telescope time for my buck. I switched to traditional Nature Photography and have never looked back.
Discussion
1 replies"Hubble images arrive as ones and zeros representing grayscale, digital photos taken with filters to block all but one color of light. The colors are added later with the popular Photoshop program."
The colors are accurate because the colors assigned to Hubble images come from spectrographic data.
The images are indeed amazingly beautiful!
Happy Holidays to All!
-P
At one time I was into this, but the weather in the Northeast creating a lot of cloudy skies and early morning patients convinced me that I was not getting much telescope time for my buck. I switched to traditional Nature Photography and have never looked back.