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Eagle Optics Ranger ED 10x42 Binocular, user report (1 Viewer)

jaymoynihan

Corvus brachyrhynchos watcher
This is the beginning of my report on the Eagle Optics Ranger ED 10x42 Binocular, which i recently purchased. I will add to it after some time has passed.

This binocular is probably exactly the same under the armor as the Vortex Talon Vortex Talon HD 10x42. This would make sense since ER, Vortex, and Atlas are all part of the same little corporate family. the ER Ranger ED and the Vortex Talon specs are exactly the same and only differ in armor colour, badging, etc.

I imagine these are made at the same Chinese factory as model x of brand y, etc. In practice that may not tell you much though, since each brand company will spec the manufacturing to different tolerances and quality levels.

This is my second Chinese manufactured bino i will probably keep, (my first being the Leupold Yosemite 8x30, second generation). My other binos are German, Japanese and U.S. in origin.


Initial impressions.

Ergonomics
I am an obligate eyeglass wearer, with medium size hands, small nose, and face more flat than simian. For me the feel, hold and finger placements are very good. The open bridge design is about 6.7" long, and they weigh about 26.5 oz. Eye relief (stated as 16mm) is for me, perfect.

Very easy eye placement. Within 5 minutes during my first use, I was able to ID a Cooper's Hawk flying through a tree line at about 300' within a second or two of getting them up to the eyes.

View.
No blackouts, no rolling ball. Stated FOV (6.64 degrees) is visible. Resolution is very good, and contrast is high, more like German glass contrast than Japanese glass contrast, if you know what I mean.

I will report on eye comfort during extended use, field flatness, and "sweet spot" size matters, later, when i supplement this report.

CA
Viewing. Branches against a thin, white cloud about 30% from the sun, and the edge of a roof (from under it) against the same cloud and sun angle.
The CA is very well controlled over the inside 40% of the field, when focused for the center of the field. CA first appears outside the inner 30% of the field and gradually increases as you move towards the edge of the field. I would call it slight until you hit the outer 5% when it is very noticeable (which i call medium).

No immediate negatives to report.
 
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1st Addendum

Field Flatness & "Sweet spot"
Field curvature first can be seen by me,about 85% out from center. When focused via the center of the field, the sweet spot stretches to about 60% out from center.
CA and softening outside their respective "sweet spots", when focused on center of the field, can be "eliminated" by refocusing, except for the last 5% or less from the edge.

Ergonomics Criticism
At least for me, when the barrels are set correctly for my inter-pupillary distance, it would take a very thin stalked tripod adapter for mounting these.

Comparison

Re CA
I have 2 other "ED" binos. The Swift Audubon 8.5x44 ED (about 10 years old) and the Leupold GR 8x32 HD.
The Ranger's CA correction is below the Swift's, the latter's appearing absolute across the FOV. The Leupold's is better also, in that its CA free area is larger, and CA first appears, suddenly near the field edge.

Comparison to another 10x42 Roof
My 10x42 Leica BA.
Pretty much of a draw optically, as to resolution and contrast. Eye comfort is better in the Leica. Ergonomically, the Leica is better for my tastes, its original Trinovid/BA body still being, for my hands, the best roof body i have used.

How would i rank them on the Nikon 8x32 SE optical quality scale?
If the SE is a 10 on a 0-10 scale, I would say about 7.5+. That is very good for a roof, to me at least.

I intend to post more, after extended use.
 
Spent some time using them this weekend.
Re CA

With dark branchs against a blue sky with the sun just out of the field, traces of ca in the center of the field.
Summary
:t:
Like them. A good, servicable bino. BTW, eye comfort is good during extended viewing (ie not taking them from eyes for a while).

Con:
They do not "snap" into focus.But you do get there. ;)
Will be keepting them.
 
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