> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ken Durling
> Sent: Friday, March 30, 2001 4:46 PM
> To: [EMAIL PROTECTED]
> Subject: EOS Why demise of DOF scales?
>
>
> Is there a rationale for the prevalent lack of DOF scales on "modern"
> lenses? Not having seen a lot of multi-thousand dollar lenses, maybe
> it has become a high-end feature, but I can't see why that would be.
> All my old FD lenses had them, and I'm curious what folks'
> understanding about this is.
A quick survey shows that all of the Canon prime lenses I looked at had DOF
scales with the exception of the 50mm f1.8 II, which has no focusing scale.
The only lenses that don't have the scale are zooms, and in most cases it
would be hard to imagine how a scale would be implemented. A one-ring zoom
can have an expanding scale on the barrel, but how would you this with a
two-ring lens?
Chuck Skinner
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