What's the difference between red-eye corr. and red-eye lamp on a Canon digital camera?

Question

Also, I have both of the above turned on and my subjects still often get red eyes - am I doing something wrong? I thought you usually get a couple of flashes to reduce red eyes but my camera doesn't seem to do that... Any tips?

It's a Canon Ixus 82IS.

Thanks

Answer 1

Red eye is caused by that portion of the flash that gets beamed into the eye and reflects off the back of the eyeball. The red eye lamp ( or pre-flash when that is used ), works by making peoples irises get smaller in response to the bright light. This can reduce red-eye but rarely entirely prevents it. The red-eye correction works by coloring in the red part with colors found in the surrounding non-red part. Neither of these are great solutions but with a small camera where the flash is physically close to the lens there is not a lot of choice but to use both.

Answer 2

This happens when you take a picture in a dark environment. In this relative darkness, your iris opens so that more light enters in your eye and you can see better. It must have happened to you when you enter a dark place, you can't see a thing at first but slowly your eyes get 'accustomed' to the darkness and you can see better. That's your iris opening. Now if someone had to take you a photo, the flashlight will find your iris wide open and red will reflect back to the camera. Newer cameras have a pre-flash (also called red-eye!!) which lights up just before the main exposure lights up and the shutter opens, thus forcing the iris to close down, thereby eliminating the red-eye. Also by turning slightly your head, so as not to face directly the camera, seems to help. What makes some people more prone than others is the colour of their eyes especially brown. Also age, in older people their reflexes are a bit slower and their iris takes longer to adjust. Hope this helps. Ciao

Answer 3

turn off the lamp.

all you need is the correction.

also, you can touch them up in the review mode