red eye and zoom lens

[neuroanatomist]

Wouldn't the subject and the optical axis be on nearly the same axis with an extended zoom though?

Yes, so you need to get the flash away from that axis.

Also, as Mark points out, it's more of an issue with longer focal lengths because of the narrower angle of view. I suppose that's what you meant by 'zoom' but telephoto would be the correct term (the 8-15mm fisheye and 16-35mm are zooms, too, but less prone to redeye).

[shutterdown]

I suppose that's what you meant by 'zoom' but telephoto would be the correct term (the 8-15mm fisheye and 16-35mm are zooms, too, but less prone to redeye).

Yes, telephoto is what I meant. But, shouldn't it more correctly be telephoto zoom?

I just tried the flash, mounted on a PW TT5, and a MiniTT1 on the hot shoe of the camera. It fired without a hiccup, within 3 feet of each other.

Now, for the next time this situation happens (as Mark pointed out, in a wedding environment), all I need is an extra pair of hands to hold the flash.

[Busted Knuckles]

Extra Hands, decent sized soft box/modifer/bounce - all tools of the trade.

I find it interesting that some individuals seem more prone - could it be the eyes are dilated by something they ingested and/or is there some sort of genetic link to wider than normal/more reflective than normal eyeballs.