The history of monoculars closely aligns with that of telescopes, marking the onset of the era of optical devices. Although glass was discovered around 3500 BC, it wasn't until the 16th century that lenses were invented.History often remembers only one inventor for a device, even though many may have contributed to its creation. This is true for the telescope as well. Hans Lippershey from Holland wasn't necessarily the first to create a telescope but he's recognized as its original inventor in historical records.Interestingly, Lippershey isn't the most renowned person linked with telescopes. That honor goes to Galileo Galilei who introduced astronomy to telescopes in 1609 and was first to observe moon craters using a device with 30x magnification. The evolution continued when Isaac Newton replaced glass lenses with curved mirrors in 1704, paving way for limitless magnification options constrained only by mirror size.Binoculars came into existence shortly after telescopes, thanks again to Hans Lippershey at the behest of a patent authority. Essentially two telescopic devices mounted on one frame defined early binoculars which didn’t gain much popularity initially and remained obscure for nearly three centuries. The modern version we know today was patented by J.P Lumiere in 1825 while Ignazio Porro introduced an advanced prism variant almost twenty years later in 1854.
Different Types of Monoculars
All monoculars work similarly: they magnify the perceived image with the help of prism lenses. In that regard, there are not that many types to talk about. However, modern monoculars include many other useful features, and that’s where the differences come into play.
Compass Monocular
The name speaks for itself – such monoculars feature a compact compass somewhere on the device. They are indispensable for hiking and camping, as they combine two devices, saving space for other pieces of equipment.
Night Vision Monocular
Regular monoculars rely on natural light when producing images and will be of little help in low-light conditions and darkness. Night vision monoculars don’t suffer from this drawback, granting their owners a unique opportunity to observe nature at any time of day or night. Three varieties of night vision are currently used in monoculars: intensifier-tube, infrared, and thermal imaging. Some, like intensifier-tube monoculars, will work well in low-light conditions and not so well in darkness. At the same time, a thermal monocular will function equally well regardless of lighting conditions.
Rangefinder Monocular
Another device with a self-explanatory name, rangefinder monoculars feature a device that tells you the exact distance between you and some object. Once a novelty, now all rangefinders are actually monoculars. The two have merged into one device, and now the word monocular is often omitted. That doesn’t change the fact that they still feature a monocular, though.
Telescope vs. Monocular
A telescope was the beginning of it all, the progenitor of all optical devices. To some, telescopes and monoculars are not that different: one is just bigger and can look further. That is a somewhat accurate observation that lacks depth. In fact, it is easier to enumerate their similarities than point out all the differences. A single eyepiece and spotting capability unify these two devices, but in other aspects, they stand pretty far from each other.
Let’s begin with magnifying ability. It goes without saying that monocular zoom is no match for that of a telescope, but that is only one end of the spectrum. At the same time, telescopes are pretty useless at shorter distances. Their magnification range starts from 30x, and it’s great for observing mountain tops and celestial bodies. If your object of interest is closer than that, a telescope will be of little use. The monocular magnification range begins at 1x and may go as high as 10x. They are more suitable for glassing and nature observation.
Then, we have a set-up necessity. There is no way to utilize a telescope without setting it up first. The weight and size supply won’t allow that. Telescopes are made of several parts and first need to be assembled and calibrated. They are also very sensitive to movement and need to be mounted on a tripod to be fully operational. Monoculars, on the other hand, are self-sufficient devices ready for exploitation right away. They require no optic accessories and are much more forgiving in terms of steadiness.
To sum it up, a telescope boasts greater magnification capabilities at the cost of a smaller field of view and additional set-up complications. They are also much more expensive. Monoculars are cheaper spotting devices that are easier to exploit, though they are only suitable for short-to-medium distances.
Benefits of Owning a Monocular
Owning a monocular won’t fix your life or change the world order, but it comes with its own pleasant, even if less significant, advantages. First of all, you gain an eyesight extender that allows you to get closer to wildlife without actually getting closer. Animals are very perceptive, and even the slightest rustle can scare them off. Some picturesque places might be hard or simply dangerous to reach. With a monocular by your side, you take a peek at places far away. That is the biggest benefit of owning a monocular.
Some benefits arise when you compare monoculars to other optical devices. They are much easier to exploit than telescopes and are less bulky. Truth be told, compactness and lightness are the advantages that monoculars have over spotting scopes and even binoculars. Some monoculars can boast night vision lacking in telescopes and spotting scopes. They also require only one hand to operate. All in all, it can be your go-to optical device that can fit comfortably in a pocket.
How to Choose a Monocular
The main thing to determine when choosing a monocular is how powerful you want it to be. You are not choosing among thousands of variants, as only a few monoculars boast magnification power higher than 10x. The thing is, they have smaller lenses, and image quality suffers as magnification goes up. The picture is still quite clear below 10x zoom, but everything above would be blurrier than you’d want. You might opt for monoculars with adjustable zooming range as they offer more versatility or stick to those with a fixed range as they provide a clearer image.
If magnification is of secondary importance and you look for a night vision monocular, determine the conditions in which you plan to use it. An intensifier-tube monocular may be great for walks in twilight when light is still present. A thermal imaging monocular will work even in complete darkness and is effective even if you are not trying to spot animals.
Best Places to Use a Monocular
Monoculars are quite universal in their application, in the sense that you can use them anywhere you want. However, there are things monoculars are good or not so good at. If you want to observe a stationary or very slow object, monoculars will serve you well. They aren’t too good at capturing fast-moving targets, though. Nonetheless, it’s not a bad idea to use monoculars for bird watching. Keeping a device like that in your pocket might actually provide many unexpected opportunities for observing birds. Spotting scopes are quite hefty, and you won’t keep them on your person all the time. The same goes for binoculars. Other than that, monoculars are suitable for everything from observing nature to admiring cityscapes.
Monoculars are unjustly overlooked by many outdoor enthusiasts. Despite that, many leading outdoor optics brands like Leica, Vortex and Hawke don’t give up on them. Monoculars cannot boast the superior magnification of spotting scopes and might not be the best choice for watching fast-moving targets, but they offer many other benefits. They are affordable and compact alternatives to spotters and binoculars. Give them a chance – and you won’t regret it.
