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Review BX-4 McKinley HD (1 Viewer)

Steve C

Well-known member
This review will cover both the 8x42 and 10x42 binoculars. The binoculars were supplied by Leupold. I will add that they contacted me.

First, there seems some confusion over prices as they are currently listed from $519.99 to $759.99, no two places seemingly with the same price. They will sell for $599.99 for the 8x42 and $619.99 for the 10x42. They come with Leupold’s world famous bomb proof warranty. They told me it was a legal department requirement they use the term limited lifetime, to seemingly place the warranty coverage to the original purchaser. While you can go online to register your Leupold, they will never ask you for any proof of purchase. I can state from long personal use of Leupold products, that they take a backseat to no one in their service. If you need your McKinley repaired, Leupold has state of the art facilities and trained people, so they can take it apart and fix it.

These showed up at an opportune time. We had our local big show, the Winter Wings Festival here last weekend, so there were chances to get them side by side to several competitive binoculars.

The first thing that will hit you right between the eyes when you open the box is their unquestionable similarity to the ZEN Prime HD. On one hand they seem to be the same basic binocular. On the other hand, they also have significant differences. It is basically the same size and general outline as the recently discontinued Leupold Gold Rings. It is however, some four ounces lighter, but if you have held a Gold Ring you have a good idea of how the McKinley will feel.

I’m waiting to hear back from Leupold on my query about an x32 version of this binocular. I’ve got a couple of QC questions I need to ask them too.

Image Performance:

This has a very sharp, high contrast image, with only a very slightly warm bias. Resolution leaves nothing for my eyes to desire. For a roof prism binocular, the apparent depth of field and 3-D effect is first rate. Colors seem very natural. The warm tint is not visible to the eye looking through this binocular. It only shows looking backwards though the instrument at a bright, pure white surface.

Field Performance:

The binocular presents a wide, bright, relatively deep, and flat field of view. The binocular I have first hand experience with that is brighter is the Zeiss FL. While not necessarily FL bright, it is almost still too bright. It has snowed here the first two days of the week, and the sun is now out, and the world here is bright. Yesterday when I scanned our black cattle on their newly snow white pasture, I had to crank the eye cups down and use the binoculars with my sunglasses. Low light performance is very good. Glare is nicely controlled. While I realize I am not the best person to comment on color fringing, I can induce none, no matter what target I use. I can only get it in out of focus situations.

The edges here are quite sharp, not perfect, but as good as you can find for less than $2,000+. The field is also very flat. I can see a bit of a hint of curvature. It is more of a peripheral sensation for me. As I look to the edge to see it, my eyes evidently accommodate and it goes away. So we are dealing with a very wide, sweet spot at least 90% of the field, and very immersive view. It is a very easy view too. There is no hint for me of Rolling ball either.

Ergonomic Performance:

This is a large binocular and its size will likely lessen its appeal for some people to some degree. I have pretty big hands, and they are about right for me. They have a large diameter ocular design similar to the ZEN Prime HD. Leupold has gotten at least the start of a fix here, particularly on the 8x. The eye cups on both the McKinley’s have more taper than the Prime. The 8x has a longer eye cup, and the edge of the eye cup is more rounded than the 10x. Both feel better to eye and nose than the Prime, and the 8x McKinley is an improvement over the 10x. The eye relief gives them some leeway in the eye cup design than the 10x, but Leupold told me they are working on getting the same eye cup design on both. The ergonomic impact of the slight eye cup redesign is substantial.

The McKinley focuses counterclockwise to infinity. The focus movement is, I think, a decent balance of easy to move and stiff enough to stay where you put it until you move it. The focus moves through just less than 1.5 turns. I can stand up and focus on the tip of my shoes, about 4’. One turn takes the focus from there to 25’. Another one quarter turn takes the focus to infinity. There is one quarter turn past infinity. Cold temperatures do not seem to greatly affect wheel travel. There is a typical right eye diopter arrangement. It does not lock in place and there are no click stops, but it is stiff and should not pose a threat to move without user input.

There is a nearly imperceptible slack movement when changing focus directions. It is less than one degree. I do not see it unless I stop looking through the binocular and concentrate on nothing but focus wheel tension. I do not notice it in field use of the binocular. At some point in my life, I would have assumed nobody else would have paid any attention to this either, but not anymore. It is my opinion that the McKinley has a smooth and highly usable focus system, one that is free from unnecessary slack movement.

This binocular gives off the feel of being built like the proverbial tank. It is something that looks and feels like the rugged product Leupold tries to produce. This has more armor around it than the Prime, and also has thumb indents.

The McKinley looks like you could knock it off the pickup tailgate into the weeds with a baseball bat, pick it up, clean it off and go use it.

How does it compare:

ZEN Prime HD

The obvious and frankly unavoidable impression is that this is the same binocular as the ZEN Prime HD. Having said that, I don’t know the source of the McKinley. It has some differences to the Prime. The eye cup design is one difference. The field is sharper at the edge than the Prime and the field is flatter than the Prime and the image is just a bit brighter than the Prime. It has more rubber armor than the Prime, it has thumb indents and a different diopter ring.

Kruger Caldera
The Caldera is possessed of slightly less color, and the contrast of the McKinley is better.

ZEN ED 3
The McKinley is flatter and sharper at the edge than the ED 2 or 3. The eye cup of the ED series will likely appeal some people more than the McKinley. The center field sharpness may be a bit better in the McKinley

Vortex Viper HD
The Viper is smaller than the McKinley, nearly as bright, but has an obviously narrower, less immersive viewing experience.

Vortex Razor HD
This may be a bit brighter than the McKinley, but I have had more time with the latter. The Razor is smaller overall and has less massive oculars and will probably present an ergonomic preference to some people. Sharpness and apparent contrast is pretty close in the two. The Razor HD is twice the price of the McKinley too.

Zeiss Conquest HD
Let’s just say there is an astonishing physical, ergonomic, and optical similarity between the Conquest HD and the Razor HD. Frankly it is the same sort of similarity seen between the Prime and the McKinley. This is simply an observation, nothing more.

Put a perfectly focused Conquest and a Razor HD alongside a McKinley and you better get out the nit picker and the magnifying glass if you want separate anything of significance in the image of the three.

So in short, this seems a good binocular for a choice to provide excellent optics at a good price. There is really no point in spending more money. That is, unless you are driven by material things.

Hey, even the solid company guys at the Swarovski booth were impressed.

Now I am having fits with my camera not wanting to work right and my computer not wanting anything to do with recognizing connected cameras, so I will post pictures as I am bale to do so. ;)
 
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Excellent per usual Steve been kinda waiting for these to surface! Hope they do design an 8x32! They didn't come out with them in GR line right away either. Bryce...
 
Leupold told me the Gold Ring line is "on the shelf" for the time being. The McKinley is every bit as good as the older Gold Ring. It is wider, brighter, flatter, plus a little lighter. I got the distinct feeling that they currently think the production of a Gold Ring line would take significant more expense to improve the McKinley much. What they will ultimately do if the go forward with the Gold Ring is to import the glass and assemble everything in their own facility. I have a feeling they may move the McKinley toward Gold Ring status. They didn't say that, but I got that impression. They did say their engineers had some other ideas for the McKinley design, further refinement of the eye cup one of them.

They could slim it up just a bit with a little less armor.
 
I'm really tempted to order the 8's! I have an e-mail inquiry about the 8x32 format first. The GR HD's had impressive optics. I really wish I had kept the 8x32's I had. Bryce...
 
Just a guess, but I doubt you will see 32 mm models anytime soon.

I am still reserving extensive comments for a bit. At first I was a little disappointed but now am quite impressed.
 
I have no insider info Bryce. Just a guess on my part.

But, as my ex-wife reminded me, I am often wrong.

;)
 
As usual, nicely done! I have been on the hunt for a new 10x and just haven't been able to make the choice yet. You have piqued my curiosity. One of the things I love the most about my GR HD 8x32's is the focus - it is fast & smooth. I never feel like I miss out because of the binocular and it is not so fast or slippery that you overshoot . It has definitely set the standard for which I measure other bins by! Have you used a GR HD & would you feel the focus on the McKinley is comparable?

Given the great optics of the GR HD's, I am curious why they just didn't refine them - shave some weight for one example. They had a great product :(.
 
The original Gold Rings (sourced from Japan) did not sell at the original price. When Leupold was forced to reduce inventory, $600 was where they sold. Hence the target price for the McKinley. Leupold will be between the devil and the deep trying to do a Leupold assembled binocular with outsourced glass and trying to keep it where people will buy it.

The McKinley will remind you very much of the Gold Ring. Their current thinking is for a 32mm version next year and a 50mm version the year after. That hinges on how well the McKinley does.
 
The original Gold Rings (sourced from Japan) did not sell at the original price. When Leupold was forced to reduce inventory, $600 was where they sold. Hence the target price for the McKinley. Leupold will be between the devil and the deep trying to do a Leupold assembled binocular with outsourced glass and trying to keep it where people will buy it.

The McKinley will remind you very much of the Gold Ring. Their current thinking is for a 32mm version next year and a 50mm version the year after. That hinges on how well the McKinley does.

Steve, great write up as usual. 2 quick questions.

Country of origin for the McKinley is China then?

The Razor HD you were comparing to is the most current single hinge design?

Thanks,

Todd
 
Country of origin for the McKinley is China then?

The Razor HD you were comparing to is the most current single hinge design?

Thanks,

Todd

Yeah China it is.

Yes it was the current Razor HD, but the optics in either of the two Razors are very close.

Just got off the phone with Leupold. They put the McKinley through a 15 point check off the factory line and an additional 45 point check at the Leupold plant in Beaverton before the binocular leaves there either to a dealer or customer direct sale.
 
As usual, nicely done! I have been on the hunt for a new 10x and just haven't been able to make the choice yet. You have piqued my curiosity. One of the things I love the most about my GR HD 8x32's is the focus - it is fast & smooth. I never feel like I miss out because of the binocular and it is not so fast or slippery that you overshoot . It has definitely set the standard for which I measure other bins by! Have you used a GR HD & would you feel the focus on the McKinley is comparable?

Given the great optics of the GR HD's, I am curious why they just didn't refine them - shave some weight for one example. They had a great product :(.

Laura, if you ever feel the need! I would happily buy them back!!! Bryce...
 
Jay,

If you enjoy a bin with minimal to no CA then I think you will really appreciate the McKinleys.

I finally have had the opportunity to sit down to put together some thoughts on these bins after a few days of use. I would like to explain my earlier comment that Bryce was curious and will elaborate on it in my section on overall "fit".

I am just going to start this from scratch without going back and re-reading what Steve posted above. Some of it may be redundant with his comments as a result.

Let me start off by saying that I like this binocular. I really do. Really impressive in such a variety of different ways. As I always do though I want to start off with optical performance. Why not? When it comes to whether or not a binocular is a "keeper" it really does just boil down to how it performs optically overall and also in comparison to other binoculars that the individual has on hand. I do not have any "alpha" binoculars in my current selection to compare it to but I think Steve did a very nice job of comparing it to its primary competition either in terms of performance or price.

So, here is what stands out to me when I look through these binoculars:

Sweet Spot

Huuuuuggggeee! Really Big. Practically edge to edge when all things are considered. For the average binocular user it will appear as if the apparent sharpness does stretch from one edge of the field of view to the other. Really impressive. There are only a handful of binoculars on the current market that you can say this about (Swarovision, Nikon SE and EDG to name a few). What makes it more impressive is that this model (and one other competitor) are able to stretch that flat, wide sweet spot over an 8 degree (420 foot) field of view. (8x42 model)

Closer inspection reveals some slightly different results. As I have often found with many binoculars with a field flattener element though the apparent sharpness is not necessarily consistent from one edge to the next. The central "sweet spot" is a good 70-75% of the field of view. Then there is a small "band" around the next 10-15% of the field of view where apparent sharpness falls off ever so slightly. I would have a hard time putting a specific percentage on the amount of degradation but it truly is minimal. You have to look for it to see it. The remaining 15-20% of the field of view is just as sharp as the central "sweet spot".

Chromatic Aberration (color fringing)

Because of the extra low dispersion glass element located in the objective design this binocular excels at reducing chromatic aberration throughout a huge portion of the field of view. My "litmus test" for this is to stare at the top edge of a mountain ridge and then move the binocular up and down so that the ridge "edge" moves through the entire field of view. With most "well-corrected" binoculars CA is well controlled within the sweet spot but does show up at varying degress outside of the sweet spot.

That is the case here with the McKinley.

The "kicker" though is that the sweet spot is so wide on the model. CA is practically absent throughout the entire sweet spot. In the small "ring" where sharpness falls off slightly CA is still well controlled and no worse than in the central sweet spot. In that last 10-15% of the field of view where apparent sharpness returns to the same level as the center then I can see CA along the ridge but it is very well controlled. I would rate it at close to the same level as the Zeiss FL of similar configuration.

Apparent Brightness

I would rate this model as excellent in this area....particularly in low light situations. When we refer to "apparent" brightness it is not just referring to measured light transmission levels but rather when a variety of factors such as contrast influence how we perceive the brightness levels of the image presented. The brightest roof prism model I have owned/tried was the Zeiss FL. I don't have one on hand to compare it to but I would be surprised if the FL produced a brighter image in anything but extreme low light conditions.

Apparent sharpness

As most individuals that frequent this forum are aware, even 8x binoculars are able to deliver more detail than our eyes are capable of seeing. Still, I think even an untrained eye can pick up on when a given binocular model is "less than sharp". Taking that a step further there are a few binocular models on the market that deliver an image which makes us feel as if we are seeing as much detail as we want...and then even a bit more. I hold no reservation in saying that this is one such model.

Case in point, as I type this I am occasionally looking out at an oak tree about 50 yards away. With the McKinleys focused on the bark of the tree I can see every minute detail...the contour and text of the bark, the small bits of moss growing at various spots, the subtle graduations of where one section of the trunk melds into the next. Really quite impressive.

To take it a step further I am also looking at a Turkey Vulture as it soars along the mountain ridge that I referenced earlier. The ridge itself is well over a mile away and yet the shape and detail of the bird is easily apparent as I focus the binocular.

Color bias and representation

For a variety of reasons many binoculars display what I refer to as a "color bias". Those reasons could include such things as the type of reflectivity coating utilized on the roof prism, the light transmission levels and the choice of antireflectivity coatings utilized throughout the entire binocular. To my eyes the McKinley is entirely neutral in color representation. I detect neither a warm (reddish-yellow) or cold (blue or green) color bias. Even when looking down the objective end with a white piece of paper in front of the ocular lenses I can detect no additional color.

The colors themselves are rich and well saturated. Reds are very red. Blues are very Blue.

Apparent Contrast

Again, I can find nothing to fault in this area. Contrast seems particularly good. Blacks and whites are in stark contrast to one another. Even the other night when looking up at the moon it seemed to almost be "alive" because of the level of contrast represented between it and the surrounding space.

Ergonomics

No complaints with regard to the ergonomics. This is a traditional hinge model with thumb indents placed under the barrels. As you will see in one of the pics I attached I have no concerns with the placement or depth of the thumb indents. My index finger fits neatly on the focus knob with the middle and ring fingers across the central hinge and the pinky wrapped around the front end of the barrel.

Furthermore, the texture of the rubber armoring is very comfortable to hold. It has a small amount of texture added to it which, though comfortable, still allows you to obtain a very secure grib. I would have a difficult time believing that this binoculars would slip out of your hand even under wet conditions.

The focus knob itself is large but not obtrusive.

I do not have an issue with the length or weight. The McKinleys seem to be of average length for most 42 mm models. The weight is definitely there but I would not call it excessive. It is well balanced and certainly lighter than some of the 42 mm models I remember owning in the past (thinking Leica Trinovid, Meopta Meostar, Swarovski SLC, etc...)

Mechanical Qualities/Fit and Finish

When evaluating this area I look for a variety of small issues. Does the focusing knob have any play in the feel? Do the eyecups twist up and stay locked in placed? Is the central hinge tension tight enough not to move inadvertently and yet loose enough to adjust when exchanging the binocular from one person to the next? I can happily relate after examining all of these issues and more that this binocular "passes" with flying colors.

There is no play in the focusing knob on this particular unit. Central hinge tension is perfect. The eyecups are metal under the rubber armoring and they slide precisely in their tracks. The binocular reeks of quality in my opinion. Interestingly enough I think this is one of those binoculars where the whole is notably greater than its parts. When you pick one of these up in your hands you will understand what I am referring to. The solid weight, balance and overall fit and finish make this one of the most attractive binoculars I have had the opportunity to evaluate.

I also feel the need to comment about the over styling/look of the binocular. I have never used the term "sexy" when it came to a binocular for a variety of reasons. But, if there was ever a model that I did find attractive, at least in terms of styling, then this is it. The Golden "L" indented into the armor coupled with the Leupold name in gold along the barrel, plus the contours in the rubber armoring just make this one visually appealing binocular in my opinion.

If this binocular does not prove what Chinese manufacturers are capable of then I have not found one that does.

Nitpick:

Just one at the present time. What initially "turned me off" with this model had to do with the oculars and the eyecup design. I have been using a variety of binoculars lately but primarily still utilize the Sightron 8x32s as my primary choice. The eyecup diameter on that model is relatively narrow. Subsequently I am accustomed to having the eyecups sit somewhat passed the bridge of my nose and below my eyebrows. That is not the case with the McKinleys. Because of the large ocular and eyecup diameter the binocualrs actually sit on top of the bridge of my nose and in front of my brow. Thankfully there is still sufficient eye relief to allow me to see the full field of view.

This issue took some getting accustomed to as it felt vastly different from any other model in recent memory.

Pics to follow in subsequent posts....
 

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Some internal pics..........
 

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Some digibinned pics out my window.

These were handheld via my Iphone. Take note of the edge performance more so than anything else.
 

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