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length of telescope formula. An exit pupil size diameter of light beam as it exits eyepiece over 75mm might be too large for telescope designs with central obstructions ie. 1000 10 100.
10mm eyepiece 2x barlow 200x magnification. After which you are to multiply it by the constant number of 573. So for example 1000mm telescope divided by 10mm eyepiece will give 100 x magnification.
An exit pupil size diameter of light beam as it exits eyepiece over 75mm might be too large for telescope designs with central obstructions ie.
8 203mm clear aperture 2032mm focal length f10 focal ratio. Cookie Policy Privacy Policy Terms and Conditions Acknowledgements Bug Reports Get In Touch. To get a magnified image of an object at infinity the image formed by objective lens will beat focus and if we want maximum magnification then the image formed by objective should be at focus of the eye piece. 8 203mm clear aperture 2032mm focal length f10 focal ratio.