Binocular Prisms are what let you see a correctly
Roof prisms are essentially in line inside the optical tubes, and, therefore, a more compact set of binoculars. Roof prism binoculars have straight tubes with the bigger front lens or Objective lens in line with the smaller rear or Ocular lens and are therefore more compact. This is good thing for the sportsman. They usually have two pivot points between the tubes, and are more difficult to adjust to the spacing of your eyes. Roof prisms can give an optical image equal to the best Porro prisms, but for technical reasons they usually don't. To be really good, roof prism binoculars have to be in the high price class. Do not attempt to economize on roof prism binoculars.
Porro prism binoculars are identified by their offset tubes; the front Objective lens is not in line with the back Ocular lens. The front lenses are usually closer together than the rear lenses, but the reverse can also be true, particularly in compact models. The Porro prism design is usually optically superior to the roof prism design, especially in medium priced class binoculars. Porro prism binoculars have a single pivot between the two halves of the binocular, and are therefore easy to adjust for the distance between your eyes.
Either the Roof prism or the Porro prism binoculars will give you years of steady high quality viewing. It really is a matter of how you use them and how much you care about adjusting the lens. All binoculars work well for hunting, bird watching, sports events, and general star or scenery viewing. Your preference will usually come down to handling on a daily basis. Try out several types for different situations and then make up your mind about which is best for you and your viewing.
Roger Johnson
Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
Tel: 0086-0769-2318 4144
Mobile: 0086-137 2828 8444
Telephone: 0086-0769-23184144
E-Mail: mz@sinowon.com
Website: www.sinowon.com
Headquarter Address:
C1-508, Tian'an Cyber Park, #1 Glod Road, Nancheng, Dongguan, China (Post Code:523080)
Factory:
Unit 01, Building 7, No. 120, Liantang Road, Tangxia Town, Pengjiang District, Jiangmen, Guangdong, China (Post Code:529000)
International Trade Sector:
C1-501, Tianan, Gloden Road, Nancheng, Dongguan, Guangdong, China(Post Code:523080)
Copyright © 2025 Sinowon | All Rights Reserved.