Оценок - 5, средний балл: 3.2
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Фрагмент инструкции
Seeing conditions often preclude the use of the 5.2, so I sometimes substitute the 7. It can be used a bit more often, but doesn’t provide quite the detail of the 5.2 when seeing is really good. The view through the 40mm is spectacular on extended objects. Its 2° field is almost half that of many finder scopes, making a finder scope unneccessary. Fig 23: My Accessories Drawer Pentax XL Eyepieces Red LED Flashlight Eyepiece Heater Laser Collimator 14 Holding the Eyepiece in Place The clamping screw can be inserted in any of three threaded holes in the focuser. I don’t normally use it, as the nylon friction screw in the focuser is more convenient. Set it to be just snug for your eyepieces. Accomodating Other Eyepieces Balance BalanceBalanceBalanceBalanceBalance Experienced observers may already have a preferred set of eyepieces. Most of these can be used with the Teleport, though some may impose problems. Wide variation in weight effects the balance, as with any small scope. The Teleport is supplied with three balancing weights that can be attached to the mirror cell on the bottom of the scope or to the secondary cage on the top. For heavier eyepieces, you may need to place one or more of the counterweights on the mirror cell. For very light ones, you may need to place one or more on the secondary cage. If the scope is still unbalanced, you can increase the friction damping of the altitude bearings by adjusting the screws above of the altitude rings (Fig 24) wth the allen wrench. Avoid excess tightening which would interfere with the smooth easy motion that is part of the joy of using the Teleport. Focal Plane Location Focal Plane LocationFocal Plane LocationFocal Plane LocationFocal Plane LocationFocal Plane Location Most good eyepieces have a standard focal plane location, close to the surface that seats onto the focuser. Unfortunately, some designs may vary widely from this, requiring a large change in the focuser position. The Teleport focuser has, of necessity, a limited range of travel. Additional out-travel can be effected by sliding the eyepiece partway out and locking it with the screw. If a 1.25” eyepiece you use frequently requires a lot of out-travel, consider using an adapter that extends it. Also, a recessed adapter may allow a 1.25” eyepiece to go farther in than the focuser top surface. Within limits, custom adapters are possible in order to parfocalize unmatched eyepieces. If you have a particular problem here, contact me for a quote. It is also possible to adjust the location of the Teleport’s focal plane in relation to the focuser. This is done by adjustment of the strut positions, effectively changing the length of the scope. You should do this only if you find it necessary for your overall set of eyepieces. It requires time and care, and is not practical as a routine adjustment. If you are certain you want to do this, see “Service” on page 22. Fig 24: adjusting friction damping Observing Observing Every observer has favorite methods and objects. Many excellent books are available to help the beginner become familiar with the sky and learn the procedures for studying it. Here we present a few suggestions regarding the use of the Teleport, leaving the broad view of observing up to you and your chosen reference materials. The Teleport is designed to give the observer a direct connection to the universe, imposing a minimum of technology between the user and the objects observed. Without digital readouts, “go-to” databases, etc., but with smooth, easy motions, using it quickly becomes very intuitive. It’s like looking directly at the object, but with a thousand times the light grasp of the unaided eye, and with the magnification best for the object to be viewed. Here are some tips: Setup Find a solid foundation Find a solid foundationFind a solid foundationFind a solid foundationFind a solid foundationFind a solid foundation Always place the Teleport on a solid surface, such as the earth, gravel, concrete, etc. Be sure each of the three feet rests on the surface, and that the ground board between the feet does not. Tall grass will cause instability, and a surface such as a wood deck may flex when anyone moves on it, including when you shift your weight at the eyepiece. Allow time for your mirror to reach thermal equilibrium. Allow time for your mirror to reach thermal equilibrium.Allow time for your mirror to reach thermal equilibrium.Allow time for your mirror to reach thermal equilibrium.Allow time for your mirror to reach thermal equilibrium.Allow time for your mirror to reach thermal equilibrium. While changing temperature, even a low-expansion Pyrex mirror changes shape. The image quality will be poor until it stabilizes. This can be a matter of a few minutes, but can be more under extreme changes. The thin mirror and open air flow of the Teleport minimize this, and the fan can reduce the equilibration time still more. Nothing can eliminate it completely. Sky Conditions Get to the darkest...
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