Recommended telescopes for home travel and outdoor use.

1. Conditions for a telescope suitable for travel

1. Small size and light weight

Telescopes for travel need to be carried around all the time, so small size and light weight are very important. Unless professional enthusiasts need to choose a telescope with a large diameter and a large size, ordinary tourists should choose a telescope with a small size and light weight.

2. The field of view must be as wide as possible

Binoculars are small in size and light in weight, so the diameter of the telescope will inevitably be small (the diameter of the telescope directly determines the size of the telescope) size and weight). The general aperture is small. If the telescope design is not very clever, the field of view of this small and pocket-sized telescope will be very small. If the field of view of the telescope is too small, the viewing range during travel will be narrow, it will be very uncomfortable to use, and the panoramic view will not be visible. Telescopes used for travel need to be able to see the panoramic view as much as possible.

3. The resolution should be as high as possible

Except for traveling, just watching the beautiful scenery. If the clarity of the telescope is not high, the beautiful scenery will become ugly. A telescope with low definition is better not to be taken when traveling.

Another point is that the aperture of tourist telescopes is very small. Anyone who knows something about telescopes knows that the aperture of a telescope directly affects the light transmittance and brightness. Therefore, small-diameter telescopes must require very good lenses and coatings, otherwise the effect will not meet the requirements.

2. What specifications should you choose for a telescope for travel?

Telescopes have two important indicators, one is magnification and the other is aperture.

1. Never pursue high magnification

In terms of magnification, I would rather choose a small telescope than a high magnification telescope. The reason is that the greater the magnification of the telescope, the easier it is to shake. Theoretically, if the multiple exceeds 10 times, a tripod should be used. Another point, such as 7x, 8x, and 10x telescopes, when looking at distant targets, they basically feel about the same size.

Most people have a misunderstanding that the larger the multiple, the farther they can see. In fact, whether a telescope can see far depends most mainly on the clarity of the telescope. No matter how high the magnification is, the sharpness will not be good or not.

For all travel telescopes, it is recommended to choose a range of 7-10 times, preferably 7-8 times. Easier to control.

2. The recommended aperture is 25-32MM

As I said just now, the larger the aperture, the greater the size and weight of the telescope. But similarly, a telescope with a large aperture will theoretically have higher clarity and brightness for telescopes of the same brand and model. But not absolutely.

3. It is recommended to choose a telescope with a weight of less than 450 grams.

With a telescope weighing less than this weight, you will basically not feel that it is heavy when you hold it at the first weight.

4. It is recommended to choose a size that is below the palm of your hand

Such a size is suitable to hold in your hand

5. When the volume and size are acceptable to you Next, be sure to choose the one with the largest field of view

When choosing the field of view, be sure to note that different styles of telescopes, even with the same caliber and the same magnification, have very different fields of view. The visual field manufacturer has a nominal value, but it is only for reference. The manufacturer's data generally refers to the width of the field of view at 1,000 meters. As a compact mini telescope, it would be very good if the field of view can reach 120 meters. If it can reach 130 meters, that would be great. Because many very large telescopes such as 50MM diameter telescopes cannot reach this 120-meter indicator.

3. Which styles of telescopes should you choose for travel?

Basically, all brands have telescopes that meet the size and weight requirements of travel, but not every brand is suitable. Telescopes that are truly suitable for travel. Not much actually.

1. Ultra-lightweight mini telescope

This type of telescope generally weighs less than 250 grams, has a diameter of 20-25MM, and adopts a roof-type structure. The body can generally be completely folded.

The body length is about 120mm, the width is 110mm, and the width can be about 70MM after folding. This is a very common mini portable telescope with a magnification of generally 8-10 times.

The biggest problems with this ultra-small telescope:

1. Most of the fields of view are very small, and it feels like looking at the world through a patio.

2. Because the aperture is 20-25MM, the aperture is very small, and the quality of the lens and coating of the telescope must be required.

In terms of clarity and field of view, the following two models can still meet the requirements. Others, such as the Nikon 10X25, have too poor clarity and too small a field of view to meet the requirements