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1/160 sec, f/10, ISO 280 — map & image data — nearby photos
Color By Numbers
a repeat of a shot from yesterday's post
I forgot something when writing yesterday's post on spot metering. I'd posted the photo above as part of a pair, but forgot to pose this question: why is there a red outline around the sun?
It's not an effect of overly-harsh post processing (or any post processing).... you should be able to answer from just the information in yesterday's post. I don't intend this to be one of my “What am I?” quizzes, but rather, I pose it as a self-check “exercise for the reader”...
(By the way, despite a mention in an overly generous comment to yesterday's post that it was a tutorial on spot metering, I'd prefer to consider it an introduction: there's plenty about spot metering that I know it doesn't cover, and likely more that I'm ignorant about.)
Leave a comment...
Off hand, I’m wondering if is partial pixel effect. The pixels at the edge of the sun were part sun and part background and so didn’t saturate…were shorter blades of grass.
On the camera’s RGB sensor, do the red pixels saturate first? The sun’s awfully bright, but less so at the edges. Therefore, I’m guessing only the red pixels saturate at the extreme edges. Anywhere close? I’m purposefully not checking Wikipedia before posting. 🙂
So what is it? I really want to know 🙂
Areas of the sun that are not blown out – that are sufficiently unbright – are the reddish pink. In this case, that’s the areas most obscured by the clouds, and the edges. —Jeffrey