Viewing up to 50 miles away – Oberwerk
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Viewing up to 50 miles away

We are searching for the best model to purchase for a deck view….we just purchased a home in Panama and want to be able to see the island where our son fishes which is about 46-50 miles …34 by land and 12 by sea – I was looking at telescopes when I found you on a google search. Do you have a model that would see that far that is on a mount …and not for the “professional”??  Thank you.

One of our Long-Range Observation binoculars would be the best choice for long distance viewing.  Using both eyes adds perspective and depth perception to the view, while a telescope presents a very “flat” view.  These are truly the world’s most powerful binoculars, however, 45-50 miles is very distant, and the curvature of the earth over that distance will come into play.  If you are standing on the beach looking out over the water, the horizon is only 3 miles away due to the curvature of the earth.  You have to be standing higher than sea level and/or your target must be higher than sea level to be able to see farther than 3 miles.  There is a formula to determine how far the horizon is, based on the observer’s height above sea level.  The formula is Distance (in miles) = 1.2246*SQRT(Height in feet).  So let’s assume your deck is 200 ft. about sea level.  The square root of 200 is 14.14.  Multiply that by 1.2246, and you get 17.3 miles.
Of course you’ll still want the binocular for your deck view, but unless you’re particularly high up, and/or there are features on the island that are very tall, you probably won’t be able to see the island simply due to earth’s curvature.  Let me know if you have any questions, I’m happy to answer them.
Kevin Busarow

Hi Kevin,
This is super! We are actually at 4200 ft. above sea level.  Don’t know how to do that square foot thing…but knowing the altitude and the distance to the sea (35) miles…Island is about 12 more miles….what is your recommendation for binoculars…also would be great to look at stars too…but would love to know the distance.  What do you think?

From that height, the horizon is 79 miles away.  Over that distance, you’ll need perfect atmospheric conditions to get a really clear view- so some days will be better than others.
The 25/40×100 Long-Range Observation binocular that I mentioned earlier would be great for this.  But if you are interested in binocular astronomy, as well as looking out across the water, you should consider our BT-100-45.  It has 45-degree viewing, which is much more comfortable for your neck when viewing the night sky.  When viewing to the horizon, you’ll be looking down into the binocular at a 45-degree angle- but that’s quite comfortable.  It also means the binocular can sit lower on the tripod, and is more accommodating of people of different heights.  Just set the tripod height for the shortest person, and taller people can just bend over a bit more to view through it.  The BT-100-45 is also capable of even greater magnification than the 25/40×100 using our optional 75x eyepieces.  But note that these binoculars are not weatherproof.  You should set this up indoors looking out through a big window to your view.  Take it outside only in nice weather, and for night sky observation of course.  Let me know if you have more questions.


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15 thoughts on “Viewing up to 50 miles away

  1. This is nonsense. “the curvature of the earth comes into play after 3 miles.” I call BS! I can see ground level features of the Toronto skyline clear across Lake Ontario from Ft. Niagara, NY on a clear day from the beach. That’s 40 miles across, from that distance there should be 1066 feet of curvature obscuring ANY of the Toronto skyline (yet I see it quite clearly with the naked eye.) The earth is flat dude!

    • No, you cannot see ground level features in Toronto from the Ft. Niagara beach. Toronto is roughly 300′ above sea level, Ft. Niagara beach is 275′ above sea level, and Lake Ontario is 243′ above sea level. They are 34 miles apart, but you could only see ground-level if they were 11 miles apart. There are around 20 buildings in Toronto over 700′, so you certainly could see the tops of those. You could also see higher elevation ground to the north of the city, behind the tops of the buildings, so it might look like a shoreline/skyline at that distance- but you’re not seeing any Toronto ground-level features. But if you believe the earth is shaped like a pizza, then you already know the fake math is NASA’s contribution to the government cover-up.

      • Obviously, you cant see all the ground features because there are hills and valleys between both locations. The Sea and Lakes are the best proof as at most your only contending with Waves.

        The original commend stands. you should not be able to see that much… and its not the only area showing this proof. Open your eyes and you will see. otherwise, stay closed minded and only do and see what you are told.. easy way out for many is the only way to live…

        • “The original comment stands”? Are you Andrew or Jose? If I was trying to convince people the earth was shaped like a pizza, I wouldn’t use my real name either. I’ve traveled the globe (the round globe) by jet, including the polar route numerous times- but I’ve never seen the edge of the pizza. Is that a restricted area?

        • Well… we were able to see across 13.25 miles of ocean down at the water level with a mirror flash that can only be seen with line-of-sight. With a camera height of 3 ft. even the Metabunk Earth Curve Calculator estimates the Refracted Hidden Height at 68.65 Feet–meaning nearly 70 ft. of water “bulge” should have blocked the mirror flash. If you want to see the video, go to Flat Reality Earth Explorers channel on YouTube and look for the Monterey Bay Observation. You’ll see a great white shark that breached the water too! And if you’re a man of faith, the Bible teaches that the earth is flat and stationary with over 200 verses. Just sayin’ —

  2. Kevin Busarow is telling only a half-truth. When Kevin says you can only see 3 miles when at sea level, in general he is correct that is the approximate limitation to seeing over distance to the horizon, but it’s not due to earth’s curvature – he’s getting that info from Wikipedia’s talking points, or some handbook from their company or whatever. But it is the approximate distance to the horizon – but what he left out is that is with the UNAIDED EYE. This is because at approximately that distance, lines of convergence result in becoming a tangent or a point on the horizon. For comparison, let’s all remember what the definition of the word “horizon” is: “the line at which the earth’s surface and the sky appear to meet”. Notice it does not say that they do meet, and notice it does not say that it’s because the earth curve’s downward and away from you due to being a globe. It’s just a line where they appear to meet, and this is because of how distance and perspective work.

    However, by using any high-powered zoom tool, let’s say for example Nikon’s P900 coolpix camera, when you are in fact at sea level right on the shore, or even when you place the camera a couple feet above the water at the shore ( a height of only 2-feet above sea level ) – after a boat has disappeared MORE THAN 3 miles, like 10-miles, using the zoom on your camera you can pull the boat back into view, including seeing it touch the water at the bottom of the boat. This type of test has been done dozens-to-hundreds of times over just the last 5 years and it is with complete ignorance that people like Kevin state that it is “due to earth’s curvature you can’t see more than 3 miles at that height” – with the unaided eye, true, but with the AIDED EYE the same type of camera I mentioned can zoom out enough to make islands that are over 50 miles away become visible. The fact that you can zoom the boat back into view at a mere 10-miles proves there is NO CURVATURE. And we know how much curvature is required (not optional) due to the Pythagorean Theorem. In fact because of the Pythagorean Theorem we also have what are called “curvature calculators” which also factor in the height of the observer. At a mere distance of 10-miles there should be approx 66.5 feet of curvature going away from you. 66.5 feet is more than enough curvature to completely hide a 2-story house and it’s roof and chimney. This means it would impossible to zoom 10-miles out across the water at sea level (much less at 2-feet above the water) and pull the boat back into view, because if curvature existed, all you would be zooming into would be to the top of a bulge of downward curving water, and you can’t see around/past the curve can you? Yet we can pull in objects 10-miles or further into view at sea level, which in reality, means that the curvature is missing. It’s missing because there is no curvature. The larger problem with this fact, is that if the curvature is missing in so many places as you view across the water, in order for the earth to be a globe means we must make up for the curvature someplace else: in effect, the curvature has to “double down” in a bunch of other places to make up for this missing curvature. Kevin, I welcome you, or anyone else, to indicate to us where the missing curvature is “doubling down” someplace else to make up for this? It sounds stupid – because it is stupid, and in fact, there is no curvature that “doubles down” someplace else, it would be too easy to find it with 7+Billion people running around with zoom cameras all over the earth, we would be tripping over it, it would have been discovered, and they would have made a documentary about it. You don’t know what you are talking about. Maybe one day you will become curious enough to instead of throwing out “talking points” you’ve heard elsewhere, take your equipment to the sea or large lake ( at least 10-miles across ) and try the zoom test for yourself and see if you’re talking points still work.

    So it’s obvious the Kevin is simply a salesman for a product, he has not actually used the equipment he sells at sea level. He is not a physics major or an astronomer or a math major and does not understand how much curvature exists based on the Pythagorean Theorem.

    • Interesting that you invoke the Pythagorean Theorem to prove the earth is flat when it was Pythagoras that is credited with determining that the earth is a sphere about 2300 years ago. I’ve been an amateur astronomer for over 30 years. From that experience, there are so many proofs and affirmations that the earth is not flat that I don’t know where to begin. How do you explain the different views of the night sky from different parts of the earth? Lunar eclipses? The Great American Eclipse of 2017 (we traveled to Russellville, KY to be in the path of totality). And yes- I’ve used Oberwerk binocular telescopes to observe the other spherical planets in our solar system. I’ve also used our products at oceanfront locations many times (product photo shoots makes a vacation a tax write-off), and yes- I’ve observed ships slowly disappear (as if they were sinking) over the horizon. I’ve also flown the polar route to China numerous times- hours and hours of nothing but ice. Were we actually flying around the perimeter of the firmament? How inefficient would that be- no wonder it takes so long to get there! I attended a presentation by astronaut Scott Kelly talking about his year in space- where he showed hundreds of his amazing photos. I know- he’s a liar and those photos are all fake- right?

      • And yet when we did a mirror observation at Monterey Bay over 13.25 miles, we could see it clearly right down on the beach! Even the Metabunk Earth Curve Calculator gave a REFRACTED Hidden Height of nearly 70 ft. Go to Flat Reality Earth Explorers on YouTube to watch the video for yourself as well as many other observations at Salton Sea. The proof is out there if you want to be intellectually honest. There are a lot of answers for your questions, and there are some we simply don’t know yet. Start with looking for the curve, and do your own research. Just because we can’t explain, for example, how exactly some astronomical events happen, doesn’t negate the fact that there is no curve. The heliocentric model has already been debunked by the Plank, COBE, and WMAP probes, as well as Airy’s Failure, and the Michaelson/Morely experiments. It’s a deep dive and I wish you luck!

        • Just buy the product and see for yourselves. Youtube is helpful in many ways. But it is also full of trolls.

          Buy it
          Try it
          See Facts through YOUR eyes. Not someone you do not even know on youtube. Lol. People using youtube as a credible source is hillarriouusssss.
          Yes nasa uses photoshop.
          So do people on youtbube……

  3. No one still hasn’t explained Star trails yet. It clearly debunks flat earthers. Step away from the keyboard and observe the night sky for truth

    • More regarding that in this article by Dr. Danny Faulkner, from the Christian website “Answers in Genesis.” He absolutely destroys several flat-earth arguments-
      In fact there are dozens of articles on this website debunking flat earth- just search “flat earth” on their site. Their summary- “Popular today due to Internet videos, the idea of a flat earth lacks both biblical and scientific support and shows a faulty understanding of history. Flat-earth arguments are generally a misrepresentation or misinterpretation of the evidence. Both science and the Bible confirm beyond doubt the earth is a sphere.”

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