Rant: People keep calling nebula photos "true color" when they are not

I see it all the time in this group and on social media. Someone posts a stunning shot of the Orion Nebula or the Pillars of Creation and claims it shows "real colors." But unless you have a special camera filter setup, those deep reds and blues are enhanced or shifted. I learned this the hard way after buying a beginner telescope last spring and trying to capture M42. My raw images looked mostly gray and greenish. I had to stack and stretch the data to get any color at all. A professional astrophotographer at my local club explained it to me. Most of the vivid shots we love are false color or mapped from narrowband filters. It is not a lie, but calling it "true color" misleads new folks like I was. Has anyone else run into this confusion when sharing their work?

3 comments

3 Comments

jasonf1711d ago

Yeah, narrowband images get slapped with "true color" labels all the time.

bettyroberts11d ago

My uncle once showed me a "true color" photo of Mars that was bright red cotton candy.

the_miles11d ago

That's exactly the kind of thing that drives me crazy! People slap "true color" on images that have been heavily processed or stretched way beyond what the human eye would actually see. Those raw data files from missions like Mars Reconnaissance Orbiter get color balanced differently depending on the filter set they used, and sometimes they crank the saturation to make details pop. Bet your uncle's photo was one of those where they boosted the reds so much it looks like a candy store, not an actual planet. Wish more folks would just label stuff "enhanced color" so we don't get these fake expectations.