Bosma EM10 Equatorial BOSMA |

Bosma EM10 Equatorial BOSMA |

Our restaurant business as usual during the Spring Festival , the normal delivery ! The main hair SF Express and postal ! Please rest assured that the pro- single ! Aftermarket delayed 20 days , so you worry-free shopping ! Finally, I wish you all good luck Snake and good luck oh !Our restaurant business as usual during the Spring Festival , the normal delivery ! The main hair SF Express and postal ! Please rest assured that the pro- single ! Aftermarket delayed 20 days , so you worry-free shopping ! Finally, I wish you all good luck Snake and good luck oh !

Domestic highest price, introductory astronomy enthusiasts recognized reputation mirror

Classic design , easy to operate , lightweight and yet stable

match and mirror body mount , allowing you to be more convenient and accurate astronomical observations

extensive facilities, so no need to purchase additional equipment on your observation

lightweight lens body , gives you more opportunities to go out observations

[ Tips ]
1 binoculars and other optical elements to ensure stored in ventilated , dry, clean place , conditional desiccant can be placed inside the lens barrel , and frequent replacement ;
For such small eyepiece optical element can be placed in oven and dried cylinder . Rain and snow , wind , high humidity ( over 85% ) of the weather were not to use the telescope . ;
2 optical mirror if dust and other dirt , use ear wash gently blow away the ball , do not go wipe with a cloth and a stiff brush ; If you want to clean the mirror , it should be used on cotton accounted for 50% of all alcohol and ether the mixture from the center of the mirror along one direction ( not the reverse ) to wipe the mirror edges , and continue until you replace cotton ball to wipe clean.
3 telescope machinery and high-precision tracking system is part of the transmission system , and generally does not require regular maintenance , just to be in accordance with the requirements of the specification , regularly adding the same type of lubricant (grease ) ; If the model, set the original oil ( grease ) clean with kerosene before adding new oil (fat ) , do not pay attention to the different types of oil (fat ) mixed use.
4 telescope control system should be checked from time to time , should be used in strict accordance with the requirements of the specification operations , usually should prevent moisture , foreign matter into the circuit, the battery should be removed to save a good long-term need .
5 reflecting telescope mirror surface regularly ( usually 1-3 years ) for the coating to ensure a good mirror surface reflectivity .
6 In addition to the usual attention telescope surface protection, should be cleaned from time to time , be careful not to use organic solvents. Complete astronomical telescope is composed of optical and electrical precision optical instruments, using rules to follow : to strengthen the maintenance ; equator device should be transferred to the observations in the polar latitudes , and in the meridian plane ; astronomical telescope focus is very important note poor people poor and methods ; small environment caused by climate observations can not be ignored ; should enable the telescope to the total balance in each state .