A very fine binocular with problems.
934193
I had the opportunity to test these glasses.  These are Kowa's second highest line.  The clarity and brightness are excellent.  I doubt you could find a binocular at this price point which could touch it, or even ones $ 200-300 higher.  They feel good in the hand, too.

So why 3 stars?  Two reasons. First, the diopter adjustment cannot lock.  For a top notch binocular, that's a head scratcher.  Now, it might be fine if the diopter ring was difficult to turn.  That way it would be likely to remain in place in most circumstances.  But mine moved with ease which meant that I frequently had to readjust the right lens.  It wasn't difficult but for a very fine binocular there's no excuse.

Second, the focus wheel has lots of travel to it between going from close focus, to mid range, and then to distant focus.  Several times I was fiddling with the focus to get it focused on a bird only to lose the bird by the time I got it focused!  Personally, I was getting quicker as I became more familiar with it.  Had this been the only weakness (and some might find it perfectly fine), I would have kept them.  But the added problem with the non-locking diopter ring made me return them.

I subtracted one star for each problem.  I would give it 5 stars for brightness and sharp clarity. If Kowa addressed these 2 issues they could reasonably sell this binocular for twice the current price.
3788287
Shooting pictures of birds is easier with this lens,but the magnifier doesn't fit as tight as it should. A second tripod is definitely needed to keep this balanced, because hand-held is tricky.
4336725
The Good:

These are very comfortable on the eyes as the soft rubber eye-pieces are done very well. You can focus them rapidly with relative ease. They are light weight. The clarity on use is really superb. Overall these binocular are top quality with great optics which are keenly priced price.

The Bad:

Here in is the let-down, the supplied carry case is too small and bends the eye-pieces if you use it - considering the attention to detail made by the manufacture, this is an unpleasant surprise, hence one star off.
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3359727
The lens its self has pretty good quality, but they don't fit perfect. Its feels the lens swing inside.
1914852
Ii bought this binocular because of my experience with other Swarovski optics. I needed a compact binocular but everything I looked at was just not bright enough or clear enough to bother with. After trying the compact Swarovski's I didn't hesitate to pay the rather hefty price these optics demand. The image seen through the Swarovski's is clear, sharp and bright. My only complaint is that they are made in 8x magnification. A 6x would be both adequate and appropriate for this size lens and would have been even brighter. You really can't hold steady enough with an 8x binocular to use the available magnification. I guess the bigger is better syndrome demands binoculars to be made in magnifications greater than is really useful. This is also true of my 8x50mm Swarovski binoculars as well, but the extra weight does help to dampen the unsteady image a bit more. Other than my personal feelings on magnification, I couldn't be happier with this product. I have an easy to carry high quality binocular in my pocket or butt pack when ever I go traveling, hiking or kayaking.
265926
While this may not be as good as my Brunton Echo (despite the fact this this is 10X and my Brunton is only 7X), it's still a fine monocular, especially for the price. It seems to be quite sturdy, but I'd avoid dropping or smacking it into anything all the same. The only thing I found odd was that they decided to put the focus on the eyepiece instead of the end of the device. If you wear glasses this means you will likely smudge the lenses when focusing due to your fingers rubbing against the them. The entire monocular is covered in rubber, not counting the small piece of plastic that holds the neck strap on (which happens to come pre-attached, by the way). They also come with a relatively well made looking nylon case. Overall, for the price, these are a fine choice for those that don't want to lug around bulky binoculars yet still want to be able to see far away objects. You could do a lot worse.
2413812
Construstion is well made, body is heavy and durable, lens seems good and image quality is well enough. Overall, this binocular makes a good impression. BUT! There is defect on BOTH tubes, which makes image on about 30% of view from left side very blurred.  As I am far abroad, I cannot return this item back to amazon, so I am very disappointed.
217822
focus is clear and binos fit nicely into that medium category between "compact but no field of vision" and "good field, but bulky and heavy".  I've used it to help me spot debris and read car numbers at race-tracks and it works great. my only issue is that the neck strap is thinner than a dress-shoelace and completely useless.  I plan on cutting mine off or wrapping with extra cord to make something you could actually wear comfortably.  As is, the strap would make a good garotte and that's about it.
1445295
the focus is different on each side of the binocular so I have to close one eye and or choose which one is in focus and can never get a clear good image
2012298
Bit of distortion when stabilizer is turned on, as a result it is difficult to see fine detail with distant objects.
1417810
Generally, I favor porro prism over roof prism designs, but the good reviews here and elsewhere, the $50 rebate and the Amazon sale price, were too much to resist.

The build quality of these 10x42 ED glass binoculars appears excellent. The focus wheel is geared 34 to one, which seemed high at first, but quickly becomes a feature. The eyecups have a good range of adjustment; one of the three detents should work for you. The range of adjustment for different pupil separations is good. I have deep-set eyes and a narrow nose and find the eyepiece cups too large or the bridge too close on some bins. The Endeavor ED is fine.

I use binoculars for night viewing of the sky, and for occasional birding. My prior pair was a 10x50 and to my surprise, the Endeavor ED has a much brighter image. Color is good, details are crisp, and color shading in shadow is seen nicely.

At night, these bins show very little chromatic aberration (color fringing) when looking at the moon. During the day, against a blue sky some green CA is perceptible. However, it compares favorably with more expensive roof prism binoculars, and is not extreme.

The bad news is that the first pair I received had a lot of CA in my opinion and a good deal of flare when looking at a ground target in the direction of the sun. The severity of the flare was just not acceptable. I called Vanguard, and Michelle and Mike, asked my some questions and Mike suggested that I return the pair for replacement under the warranty. I thanked him and decided to use Amazon's easy return process instead.

Two workdays later, I have the new bins, no flair, and noticeably reduced CA. The daytime view is just as bright and crisp. The nighttime view of the Double Cluster is a double wow.

Of course now that I was aware of it, the amount of CA in the replacement pair, continued to nag at me. It was not severe, but still visible in some targets. I have no comparable or better bins by which to judge. I posted an afocal image showing the worst CA on the binoculars forum at cloudynights.com.  Some knowledgeable binocular enthusiasts replied that CA is going to be seen on the right targets. One poster said this. "Even the Swarovski FL's show significant color fringing on a high contrast object. Your vangaurds are just fine  judged by your photo."

I am officially not going to worry about the CA. The CN folks are correct. Reviews on the birder forums speak of some CA in bins that cost 10 - 15 times what I paid for the Endeavor ED.

If you can accept some CA as a tradeoff for otherwise superb image quality, these are great bins. If you cannot accept CA you may have to look to a much higher price point.
3716591
The adjustability is nice, and the nose bridge is quite comfortable.  However, the reading portion of the lens is too high for me.
1390775
When I was offered a pair of these binoculars to review, I wasn't expecting much; I've seen a lot of inexpensive Pacific Rim mini-binos and none were all that impressive. When these arrived, though, my first impression was that they were heavy- a lot heavier than I'd expected, based on other binos I've seen and owned. I'm not sure why this is the case, but I suspect it's the frame under the rubber coating; it feels like there's a good chunk of metal under there. Another thing that caught my attention was that the focus mechanism is entirely internal- the eyepieces don't move when you focus, unlike the cheaper binos. Combined with the rubberized coating that suggests a better degree of waterproofing.

Optical performance is typical for bios in this price range. Resolution and contrast are good, not great, but then these aren't $500 Swarovskis. Performance is entirely adequate for most uses. There's enough individual adjustment in the right eyepiece to accommodate my vision (1.75/3.25) which is a good thing, as these don't have much eye relief. You've got to get right up on them.

So overall, a nice pair of inexpensive binocular with solid construction, acceptable optics, and what appears to be a good level of weatherproofing. A good choice for birders and nature observers on a budget.
1221531
I purchased this camera and had it for a few days. The stabilization, particularly with suitable OIS capable Panasonic lenses is very good , approaching the landmark Olympus 5 axis stabilization efficiency on OMD M5 Mark II. The unique feature of this camera is that its stabilization also works well with 4K video and 4K video Photo modes, which is indeed great. The handling of this camera was also surprisingly good, comparable to Olympus M5 II. The picture quality is as good as you can expect from a 16MP m4/3 sensor. However, the viewfinder was a deal breaker for me, since in my photography I rely on it in 80% of the cases. This viewfinder uses the old  field sequential technology also found in GX7, instead of modern OLED panels. In many situations with high contrast (outside with lots of light or low light in the house) I observed very significant shimmering and "rainbow tear effect" making my eyes hurt and the composition difficult. The viewfinder also has 16:9 shape, which is not optimal for still 4:3 photos. There is no external mic input, CineLike profiles in video, and weather sealing. If you rely mostly on touch screen in your photography or not sensitive for rainbow tear effect of this viewfinder, this camera could be perfect for you and is probably the best deal in mirrorless cameras intended for casual use currently.
214480
So far the lens is great. Although some lighting situations cause a unsightly horizontal 'bar' across the frame. I'm not sure if this is a defect or just lighting, hearing different things on the line. But great pictures I'm happy with it.
4540726
I picked these up for 155 on a prime special.  The lenses are great and crisp, but like others have mentioned, the adjustments to the diopter could use a little tweaking.  Holding the binoculars I found at least one bubble where the rubber was not glued down to the metal frame, so it would smush when poked.

Overall they were a great pickup at the above price.  But I would be disappointed if I had paid the current price of 320.
4304092
I was influenced by the Amazon reviews in my purchase of this fine binocular, and I could not be more pleased. Let me first address the quality. I have been a photographic hobbyist for over fifty years and I own several of Canon's finest lens, including the "L" series, so I believe I am qualified to critique the optical quality of this Nikon. They are excellent, and I would simply ignore anything said different.

I wear progressive bifocal glasses and I have no problem with the Nikon 7238, and neither does my wife. The adjustable eye cups are very nice. It is easy to adjust the binocular for our individual use. Just close your right eye, adjust the binocular until it is sharp to the left eye. Then close the left eye, and adjust the right diopter until the right lens is sharp, and that's it. Takes longer to type this than to actually do it once you have done it a couple of times.

We watch birds on our feeder about fifty feet from our back sliding glass door, and the 7238 is a terrific improvement over the cheap binocular we have had for years. We have 22 acres in the country just a bit east of Atlanta, and the 7238 is great for watching for ATF when I go back to tend the still. Charlie Elliott Wildlife Center is about 2 miles from us as the crow flies, and we are looking forward to visiting there and bird watching now that Spring is here.

One thing about purchasing from Amazon is their return policy. If for some weird reason you were not happy with the 7238, they have a no hassle return policy. Frankly I don't know how they do it, its abused pretty often.