I know - it beats me, too. It's just something I've noticed over the
years.
I imagine it has to do with the angles involved and so forth.
BTW, one thing to remember - if any of your _human_ subjects ever have
_white_ eye (as opposed to _red_ eye), get them to an opthomologist (eye
doctor) >>immediately<<!! That's a sign of an impending and severe eye
problem that may lead to blindness. Just something I picked up, too....
Mickey Trageser wrote:
>
> clintonr-
>
> Thanks for your comments.
>
> I can certainly appreciate that the darker it is, the more prone to redeye
> any individual subject may be. I can also accept that individuals may be
> more or less prone to it than others. I know of one gentleman whose pupil
> always seem to be constricted, so he is probably the least likely person to
> present a redeye problem. I can surely understand the factor of imbibement.
>
> Here's where I begin to lose my way. How would the aperture of my lens
> affect the way my flash is reflected from my subject's retina? If it's
> dark, they're drunk, and I'm shooting with a flash extremely close to my
> lens, won't that reflection reach my lens whether it's at 1.4 or 22? Now, of
> course with my automatic flash, I'll have more power output if it's
> cooperating with f22 than I will if it's f1.4 cognizant, but given that it's
> dark, and they're drunk, and their pupils are wider than a basketball hoop,
> won't the results be the same, as far as the redeye is concerned, for any
> given individual in either case?
>
> And isn't the introduction of the film speed variable just another way to
> influence the variances in the lens aperture?
>
> I hope I'm not just being dim here. I don't see the relationship between the
> result of redeye and the filmspeed/aperture. But I'm certainly pondering it
> more than ever! Thanks to all who've jumped in. I hope we're helping Luc
> while working on me.....
>
> Mickey
>
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