While this manual is intended to assist you in the set-up and basic use of this instrument, it does not cover everything you might like to know about astronomy. fileslib. Reflector Telescope Assembly front of the telescope (closet to the eyepiece) and place the Finderscope and Lomb, Bushnell and Jason telescopes. Complete Main Telescope Assembly READ THROUGH ASSEMBLY. INSTRUCTION BEFORE YOU ASSEMBLE YOUR TELESCOPE Your Jason Telescope is now ready to be used.
What does the focus knob do on a telescope? This is easily achieved with a telescope; by adjusting the focus of the Eyepiece (generally its in and out position), the alignment of the light rays is varied, and near-sightedness or far-sightedness can easily be corrected for with the twist of a knob .
How do you know what eyepiece to use on a telescope? The largest-focal-length eyepiece you can use with your telescope is easy to calculate: multiply the focal ratio (the focal length of your scope divided by its aperture) by 7 . For example, your Newtonian scope is f/5: the largest-focal-length eyepiece you should use is 35 mm.