Friends who like to travel know that a telescope is an indispensable piece of equipment. It can give you a panoramic view of the beautiful scenery and no longer miss every beautiful scenery. Of course, what kind of telescope is most suitable for tourism. ? How should I choose?
Conditions of telescope suitable for tourism：
- 1: Small size and lightweight
Traveling telescopes need to be carried around at all times, so small size and lightweight are very important. Unless professional enthusiasts need to choose large-caliber, large-size telescopes, ordinary tourists should choose small-volume, lightweight telescopes.
- 2: The field of view must be as wide as possible
Binoculars are small in size and light in weight, so the aperture of the telescope is bound to be small (the aperture size of the telescope directly determines the size and weight of the telescope). Generally, the diameter of the telescope is small. If the design of the telescope is not very clever, this kind of small pocket telescope will have a small field of view. If the field of view of the telescope is too small, the viewing area in tourism is narrow, it is very uncomfortable to use, and the panoramic view cannot be seen. The telescope used for tourism needs to see the panorama as much as possible.
- 3: The sharpness is as high as possible
Excluding travel, is to see the beautiful scenery. If the sharpness of the telescope is not high, the beautiful scenery becomes ugly. A low-resolution telescope is better not to be worn when traveling.
Another point is that the telescopes used for tourism are very small. Anyone who knows a little about telescopes knows that the size of the telescope’s aperture directly affects the transmittance and brightness. Therefore, small-caliber telescopes must require very good lenses and coatings, otherwise, the effect will not meet the requirements.
What specifications should be selected for travel telescopes:
The telescope has two important indicators, one is the magnification and the other is the aperture.
- 1: Never pursue a large magnification
In terms of magnification, the tourist telescope would rather choose a small one than a large one. The reason is that the greater the magnification of the telescope, the easier it is to shake. In theory, if the multiple is more than 10 times, a tripod should be used. Another point, such as 7 times, 8 times, and 10 times telescopes, basically feels about the same size from the perspective of distant targets.
Most people have a misunderstanding, the greater the multiple, the farther one can see. In fact, whether the telescope can see far, the most important thing depends on the clarity of the telescope. No matter how high the magnification is, the resolution is not good, and it is useless.
For all travel telescopes, it is recommended to choose the range of 7-10 times, preferably 8 times. Easier to control.
- 2: Recommended caliber 25-32MM
As mentioned earlier, the larger the aperture, the larger the volume and weight of the telescope. But again, the telescope has a large caliber. In theory, for the same brand and the same style of the telescope, the definition will be higher and the brightness will be brighter. It is recommended that around 30 is the most suitable, no matter how big it is, it is not convenient to carry.
- 3: The weight is recommended to choose less than 700 grams
If you hold a telescope under this weight in the first weight, you basically won’t feel it is heavier.
- 4: The size is recommended to choose the size below the palm of your hand
Such a volume is suitable for holding in the hand
- 5: In the case of the volume and size that you can accept, be sure to choose the one with the largest field of view
When choosing the field of view, you must pay attention to the fact that the field of view of different styles of telescopes, even with the same caliber and same magnification, is very different. Some manufacturers have nominals, but they are only for reference. The manufacturer’s data generally refers to the width of the field of view at 1000 meters. As a small mini telescope, if the field of view can reach 120 meters, it is very good. If it can reach 130 meters, it is super good. Because of this 120-meter index, many super-large telescopes, such as 50mm telescopes, cannot reach it.