> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tom Pfeiffer
> Sent: Friday, February 09, 2001 11:07 PM
> To: [EMAIL PROTECTED]
> Subject: Re: EOS 50 1.8
>
>
>
> ----- Original Message -----
> From: "JIm Linch" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, February 09, 2001 6:54 PM
> Subject: Re: EOS 50 1.8
>
<snip>
> Jim, I can't speak to how often you would use the lens, but math tells us
> the 1.4 will let in 92% more light than the 1.8, so it's nearly twice as
> bright.
How do you come up with 92%? I've done the math too, and come up with 62%,
or just under 2/3 stop.
Chuck Skinner
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