You could always just run a finger over it. :-)
A reluctance to do that sort of thing is why I resorted to looking at the lens
diagram when alerted to the possibility of a concave front element on the 50/2
DZ. Just looking at it, it's hard to tell.
Walt
--
"Anything more than 500 yards from
the car just isn't photogenic." --
Edward Weston
-------------- Original message ----------------------
From: "Geilfuss Charles" <Charles.Geilfuss@xxxxxxxxxxxxxxxxx>
>
> I'm looking at my 28/3.5 and the front element appears perfectly flat.
> I'm reluctant to lay a straight edge to it though.
>
> Charlie
>
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