
Small Binocular Reports Series
Ed Zarenski
3-13-08
Included in these Reports, See Links Below, are 34 binoculars tested
over a period
of 8 months. The project started out to test a variety of 8x and 10x
binoculars
under $200, small binoculars that could be handheld, and used for
astronomy or
terrestrial observing. Eventually it grew to include 7x50s 8x40, 8x42,
10x42,
10x50 12x50, a small collection of roof prism models and even a few
uncommon
sizes. Also the list grew to include some very important benchmark
binoculars
as it became evident that in order to rank all these other binoculars
it was
important to know what the quality range of performance was in each
category.
Other than the benchmark binoculars, (Nikon SEs, Fujinon FMT-SXs) every
other
binocular in this list cost less than $300. A few models cost less than
$100.
I rank about 15 different aspects of each binocular. Several are
mechanical and
several are optical. Binoculars are tested for magnification, effective
aperture,
exit pupil cutoff, usable eye relief, lens recess, weight, eyecup
adjustment,
Interpupilary distance range, diopter adjustment, close focus distance,
slow
or fast focus, coatings, baffles and blackening, true field of view,
sharp fov,
total usable fov, internal prism vignette, light transfer, limiting
magnitude,
contrast, false color, resolution, resolution handheld, pincushion,
curvature,
depth of field.
A note on the benchmarks. You'll notice one of the reports includes 3
Nikon SEs
and 2 Fujinon FMTs, certainly not cheap binoculars. Well these were
intended
as the benchmarks against which all others could be compared. When you
see the
data, you'll understand why. However, it seemed natural that eventually
they
also turned into a report of their own. So, nowhere in all the other
articles
do they compete with the under $300 models. They are there for
comparison only.
Articles in this Small Binocular Report series
A
Dozen 8s - a dozen 8x40 and 8x42 porros and roofs
Garrett DCF Apo 8x42 roof, Celestron Regal 8x42 roof, Fujinon BFL 8x42,
Nikon
Action Extreme 8x40, Nikon Action 8x40, Pentax PCF WP II 8x40, Swift
Ultralite
8x42, Bushnell Legend 8x42 roof, Oberwerk Mariner 8x40, Garrett Classic
8x45,
Oberwerk 8x56, Nikon SE 8x32.
The
10x50s - nine 10x50s with a 10x42 and a 10x60 thrown in
Leupold Wind River Mesa 10x50, Orion Ultraview 10x50, Bushnell Legend
10x50,
Garrett Genesis 10x50, Pentax PCF WP 10x50, Nikon AE 10x50, Oberwerk
10x50, Nikon
Action 10x50, Oberwerk Mariner 10x60, Fujinon FMT-SX 10x50, Nikon
10x42SE.
The
Roof Prisms - seven 8x42 and 10x42 roofs
Nikon Monarch 10x42 roof, Celestron Regal 10x42 roof, Pentax HRII 10x42
roof,
Oberwerk 10x42 roof, Celestron Regal 8x42, Bushnell Legend 8x42,
Garrett DCF
8x42 Apo, Nikon SE10x42, Fujinon BFL 8x42.
Three
Families - 3 Nikon SEs, 2 Fujinon FMTs and 3 Nikon AEs
Nikon SE 12x50, Nikon SE 10x42, Nikon SE 8x32, Fujinon FMT-SX 10x70
Fujinon FMT-SX
10x50, Nikon Action Extreme 12x50, Nikon AE 10x50, Nikon AE 8x40
7s or Better - four 7x50 big eyes
Captain’s Storm King (Swift) 7x50, Oberwerk Mariner 7x50,
Captain’s
Helmsman 7x50, William Optic 7x50 ED.
The Score - how all the above were tested, scored and ranked
Explanation of the test methods and the points rank table.
Each binocular group report can stand on its own, and that's most
likely how
all our readers would want to approach this info, according to the size
group
or type most relevant to their needs. But there's no question about it,
these
were all compiled as one set of data and will be tied together in the
Final Score
Report.
I'd like to think there aren't too many places on the internet that
present as
complete and thorough a set of test data as this series. I hope you
will find
when you see all this complete that it represents what you've come to
expect
from CN Reports.
Clear Skies, and if not, Cloudy Nights.
edz
|