I’ve looked in the night sky many a time and see Orion’s Belt. What is this image posted here ? I see nothing in there as I see in the sky.
Look under the first star in the belt. You can see a smudge if you are not in the city. With even cheap binocs you can see the nebula pretty clearly. Of course, it wont look like these photos.
The nebulas in Orion need either a large telescope or a long time-exposure camera and a long lens. This is not visible to the unaided eye. Some of the nebulas need imaging that is not in the visible wavelength. This includes X-ray, infrared, ultraviolet and gamma ray imaging. These images are displayed in visible altered images, otherwise we could not see them.
When you are looking in the right place, you’ll see it, no problem, unless your skies are totally washed out. Even a pair of binoculars is helpful, if you have one.
Keep trying, you will see it!👍
Your eyes don’t colorize the gradient