How to Calculate Length of Terrestrial Telescope?
Length of Terrestrial Telescope calculator uses Length of Telescope = Focal Length of Objective+4*Focal Length of Erecting lens+(Least Distance of Distinct Vision*Focal Length of Eyepiece)/(Least Distance of Distinct Vision+Focal Length of Eyepiece) to calculate the Length of Telescope, The Length of Terrestrial Telescope when Image Forms at Least Distance of Distinct Vision is the sum of the focal length of the objective lens, the focal length of the eye-piece lens, and the focal length of the lens placed between the objective and eye-piece. Length of Telescope is denoted by Ltelescope symbol.
How to calculate Length of Terrestrial Telescope using this online calculator? To use this online calculator for Length of Terrestrial Telescope, enter Focal Length of Objective (fo), Focal Length of Erecting lens (f), Least Distance of Distinct Vision (D) & Focal Length of Eyepiece (fe) and hit the calculate button. Here is how the Length of Terrestrial Telescope calculation can be explained with given input values -> 11344.83 = 1+4*0.025+(0.25*0.04)/(0.25+0.04).