Is that really true? The eSIF saith:
1-4 "For easy focusing the matte surface is ground rough. The subject is
in focus when the image is sharp. The large central circle is slightly
finer matted, which can be helpful with macro photography and in low
light conditions."
1-4n "Focusing is done on the matte area. The small central circle
corresponds to the 2pot metering area of the OM-2Sp, OM-3(Ti) and
OM-4(Ti)."
The implication is that they gave up the 2 different levels of
coarseness of the matte with the 1-4n, probably 'cause the tiny circle
was to small for it to make any difference. Nonetheless, there may be a
small difference.
Moose
Piers Hemy wrote:
...whereas the larger spot in the 1-4 approximates to the centre weighting
on earlier models.
But in either case, it's only a line on the glass. Functionally, they are
the same
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