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Personally think that: an ideal outdoor sports telescope should have the following characteristics: nitrogen-filled waterproof, outsourcing rubber, with a suitable multiples and caliber, portability and ease of use, of course, excellent optical quality is the minimum. The outdoor sports referred to here generally refer to camping on foot and the demands on the telescope are more complicated than the general travel. In order to prevent the infiltration of rainwater or the fogging of the lenses in cold weather and even the prolonged poor use of dust, the nitrogen-filled and water-proof can fundamentally solve this problem, even if it is thrown into the water, it does not matter, and there are some nitrogen-free. The sealed military telescope is actually very good, as long as it does not bubble into the water, the general wind and snow storms can still be dealt with. Long-term use in the field, inadvertent bumping is unavoidable, and telescopes with poorly designed or engineered materials can easily cause optical damage such as axial shadows and shadows. Therefore, a thick layer of rubber is sheathed on the mirror body. Very good protection measures, in addition to shock absorption can also improve the feel and grip. Outdoors, the purpose of the telescope is generally to observe the terrain, enjoy the scenery, observe the animals and watch the birds, taking into account the hand-shake and optical requirements, the use of a multiple of 6-8 times is very appropriate. As for the caliber, according to the different emphasis and requirements of the use, 20-40mm is more ideal. Outdoor sports itself requires individuals to carry a large amount of equipment and supplies. In the case where each gram of weight affects physical strength, it is unrealistic to unilaterally pursue optical performance and ignore the volume and weight. In a sense, it can be said that the weight The contradiction between optical performance and performance is irreconcilable. Large-diameter and high-brightness mirrors will inevitably lead to a dramatic increase in overall weight. Therefore, it is only possible to make a satisfactory compromise between weight and optical requirements based on individual requirements and preferences. The roof prism telescope has a relatively small size and weight, easy to carry, the disadvantage is that the complexity of the production of the relatively high price.
About the basic optical indicators of the telescope, there are separate definitions for outdoor sports. Resolution: This is the primary indicator. The mirror with poor resolution can help you to see the crocodile as a trunk. Exit pupil: You can simply divide the caliber by the multiple. The larger the number, the better it is to capture your prey in the dark. Color reproduction: Color cast exists on many telescopes. General observation may require less strict, but if it is used for wild appearance birds, you cannot correctly describe the color of bird feathers. Coating: The pseudo-Russian telescope that uses the bright red film on the street is really a rape to the eyes, it causes a sharp loss of light, problems with color reproduction, and easy to attract unpleasant glare, and the best coating can make you almost invisible to the lens .
Now I will make a simple purchase recommendation for the most common outdoor telescopes in the country, basically according to the two classification criteria. Weight: It directly describes the portability of one of the most important indicators of outdoor telescopes, sub-500g, 500-1000g, 1000g or more. Price: It shows the quality and performance of the telescope from the side, and more importantly, the price is a decisive factor in your choice of a telescope. Points below 500 yuan, 500-1000 yuan, 1,000 yuan or more.
1:500g or less, 500 yuan or less
It is suitable for the pursuit of absolute lightweight ALICE, the optical performance requirements are not very high.
Xi'an Aiguang Company's navigator 2305-01 8X25 is worth recommending, as the only nitrogen-filled and waterproof type under 500 yuan, compact and lightweight is its biggest advantage, metal shell and multi-layer coating, overall optical quality and manufacturing quality It is also quite good. The disadvantage is that the unavoidable exit pupil of this specification is small, the observation is not comfortable for a long time, and the brightness is also low.
2:500g or less, between 500-1000 yuan
Basically, this class of telescope has reasonable optical performance and relatively light weight.
Recommended military retired ZEISS 6X30 and 8X30, both have a very good optical quality and mechanical quality, lightweight, good color reproduction, good grip, durable, do not defy the military mirror color, although not filled with nitrogen, but the seal is sufficient In dealing with the bad weather in the wild, there is no plastic appearance, but the whole is still quite strong. The exit pupil of the 8X30 is slightly too small, 6X30 this is very good, but the only regret is that the eye lens is smaller. Also, due to the early single layer coating, the backlighting effect is not very good.
3:500g or less, more than 1,000 yuan
This level has all the qualities an outdoor telescope should have, of course, at a cost.
German ViewSonic's 8X30 series of nitrogen-filled waterproof plastic bags, engineering plastic lens body is also light and strong structure, optical quality is also very good, is an ideal portable outdoor telescope, the disadvantage is that the current domestic visual music agent It may be poor and mad, leading to a domestic market price that is several times that of the international market, and many false propaganda tricks for laymen are quite offensive.
4:500-1000g, less than 500 yuan
This level of ruggedness has been enhanced
It is recommended to retire the domestic 62 military telescope. The basic design structure is similar to that of ZEISS 8X30, but the sealing and ruggedness are even better. Especially important is the use of a multi-layer coating to improve the performance of the backlight. Unfortunately, there is no encapsulation, and the colors are A little yellowish.
5:500-1000g, 500-1000 yuan
This level is a bit overwhelming, tasteless feeling, it is recommended to retire the Zeiss 7X50 military mirror, most of the military factory has been renovated, re-coating, optical quality is considerable, the seal is also good, good color reproduction, observation of comfort, dark light It is very advantageous to obtain such a large-caliber and large-power weapon with such little money. It is still very cost-effective. The disadvantage is that the volume is a bit large and it is not very convenient to carry.
6:500-1000g, more than 1,000 yuan
Personally think that the best outdoor telescope is in this class, among which the classic good mirror is also quite a lot, personally recommend the leica Trinovid 7x42 BN just entering the Chinese market, waterproof nitrogen encapsulation, the best optical glass and the best The optical design coupled with the most rigorous manufacturing process results in top optical quality. The design of the roof prism makes the volume smaller, large-diameter, high-brightness and reasonable multiple, first-rate process and feel, scratch-resistant super hard multi-layer coating, once Own, don't ask for anything. Disadvantages? It is expensive.
7: 1000g or more, 500 yuan or less
This level of optical quality is very high, are large caliber, there is no doubt that the large diameter facilitates observation of dark light, such as want to observe the animals in the moonlight to drink water, large caliber became a necessary condition, However, the requirement of less than 500 yuan seems to be achieved only by civilian Russian-Russian telescopes, but I personally think that their sealability is not enough to meet the harsh field requirements, so it is not recommended
8:1000g or more, 500-1000 yuan
It seems that only the Russian 7X30 is selected for all-weather elections. The military background of this mirror has created a sturdy housing and rubberized casing and high tightness. The optical quality is also very high. Unfortunately, the yellowish color is very uncomfortable. And the weight of 1200g is only 30 caliber feel a little ambiguous. The 10X42 calibre of the same type is large, and it can be unacceptably large in size.
9:1000g or more, more than 1,000 yuan
Made of 95 military mirror 7X40, nitrogen-filled waterproof, optical quality is very good, the price is not bad, the appearance is a bit rough, the most failed is not covered plastic.
East German retired army mirrors 7X40 DF and 7X40EDF is a good choice, optical first-class, waterproof plastic bag filled with nitrogen, which is a roof prism design, smaller, almost impeccable, the disadvantage is that the domestic bad buy.
In short, for different people, due to the different requirements, the choice of outdoor telescopes will be very different. There is no uniform law applicable. Selecting a suitable outdoor telescope according to your requirements and preferences will be Your wild life is a great pleasure.
Finally, for me personally, I hope there will be such a telescope in the near future, specifications 6X36, roof prism design, nitrogen-filled waterproof plastic coating, super hard multi-layer coating, field of view 1000m/150m, binocular focusing , weight control within 500g, metal wood leather canvas.