Topic: I fournd a swell article that explains how polygons of light can appear in lens flare in pictures.
Sheila LaBoof started this discussion 9 years ago #63,303
https://photographylife.com/what-is-ghosting-and-flare
I always wondered how the fuck pentagons would just god damn appear like that.
"when a lens is stopped down, the lens diaphragm can cause internal reflections. The effect is greatly amplified when the lens is stopped down to its minimum aperture, which is why aperture ghosting is typically not visible at large apertures like f/1.4, but quite noticeable at something like f/16. So if you see polygon-shaped ghosts in your shots, just know that those are coming from the lens diaphragm."
I always wondered how the fuck pentagons would just god damn appear like that.
"when a lens is stopped down, the lens diaphragm can cause internal reflections. The effect is greatly amplified when the lens is stopped down to its minimum aperture, which is why aperture ghosting is typically not visible at large apertures like f/1.4, but quite noticeable at something like f/16. So if you see polygon-shaped ghosts in your shots, just know that those are coming from the lens diaphragm."
Anonymous B joined in and replied with this 9 years ago, 1 hour later[^] [v] #792,304
No, I'm pretty sure they are ghostly, insect-like extra-dimensional creatures that accidentally get caught on camera.
Sheila LaBoof (OP) replied with this 9 years ago, 3 minutes later, 1 hour after the original post[^] [v] #792,305
I would prefer that actually
Meta joined in and replied with this 9 years ago, 1 hour later, 3 hours after the original post[^] [v] #792,312
what he calls sensor flare has given me some cool shots
Anonymous D joined in and replied with this 9 years ago, 38 minutes later, 3 hours after the original post[^] [v] #792,317
you can also insert any arbitrary diaphraghm shape and it will light in those shapes
Anonymous D double-posted this 9 years ago, 1 minute later, 3 hours after the original post[^] [v] #792,318
Anonymous E joined in and replied with this 9 years ago, 1 hour later, 5 hours after the original post[^] [v] #792,324
Anonymous F joined in and replied with this 9 years ago, 26 minutes later, 6 hours after the original post[^] [v] #792,325
Anonymous G joined in and replied with this 9 years ago, 5 hours later, 11 hours after the original post[^] [v] #792,375
@OP
That also explains the many UFO pics.
UFO's in shots - They are coming from the lens diaphragm."
That also explains the many UFO pics.
UFO's in shots - They are coming from the lens diaphragm."