How does your eye sustain a picture, after your eyes adjust in a dark room, from a flash from say a camera?

Go into a dark room and let your eyes adjust. This room MUST be completely dark, no light whatsoever, get under a thick blanket if at all possible. Bring a camera with a flash and charge the flash. Now take a picture with the flash facing upwards while everyone is in a close circle and whatever the flash lights up will remain in your head as a still frame for a good 2-10 seconds. Even if the person runs behind you it will seem as if they are still where they were when the picture was taken. I have asked this before and no one has given me a ligitimate answer. PS. This is really fun to do with friends. I think I am one of the first ppl to notice this...if not the first because I tried looking it up with NO luck. Dont ask how i found this out. I guess its kind of like when the flash stays in your field of vision after a picture except the whole image that was lit stays, for a while too!

How does your eye sustain a picture, after your eyes adjust in a dark room, from a flash from say a camera?
in the dark the rods takeover and they r more for scotopic vision,,,and the stimulation they get is less lower potential of light ,,so when u r dark adapted with a sudden glow of light the cones r suddenly stimulated and then the rods take over again in the dark u will face ,,,so its like a sustained stimulation of two overlapping events confusing the optical center
Reply:The average retina has an 8 second "memory".
Reply:"photostress". its a chemical %26amp; electrical reaction of retinal cell recovery.





and its complicated.
Reply:HEY leave it GOD dude


wat will happen to u after that only God knows.....
Reply:I have had the same experience while at a party, it was dark and while the people were dancing someone took a picture and everyone seemed to stop and that image stayed in my hand for a good 1-5 seconds. It has to do with your retina, in the dark your pupil expands and in the light it contracts. Since your pupil has expanded because of the darkness the sudden flash of light


fools the pupil into contracting and thus the image from the flash stays in your eye.
Reply:its an after image, and it is always in negative


your brain will still "see" it after its gone. you can do the same thing by staring at something for 30 seconds or so then look at a blank wall. it will show up negative