At the low-budget end, Porros still hang on to some added value.
When you add the gigantic best-eye-placement
(both in distance and in exit pupil, thus a big comfortable egg),
it's easy to see how that stands out from others in the same product line.
The Aculons are a dramatic demonstration. The7x50s have far more
eye relief than other Aculons, no forced eye relief, easy eye placement,
and better field edges than the other Aculons. At the premium end,
it's easy to forget what a great bang-per-buck 7x50 offers.
I clean up old 7x50s,
sometimes blackening the lenses edges in the EPs. The clarity can
take your breath away. The edges of a well-built Kelner at 7x50
play sharp just like the edges of a precision Erfle (also around 7-Deg)
at 8x42. The corollary to field depth out front is field (sharp) width in back.
Extra-wide 7x50s are behemoths. The appeal of a 7x50 is owning a
standard-width, high-precision-field, long relief pair for far less money.
At my little shop shelf, a lot of the takers for 7x50s are older kids,
believe it or not.
Despite the weight, they can place their eyes well, and their
kid's super-acuity says these things are like nothing else they try.
Kids find big binos cool. You look like an senator or a general.
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