the eyepiece lens magnification X the magnification of the objective lens.
Simply, multiply the magnification of the ocular lens times the magnification of the objective lens you have in place.
15 * 30 = 450 ------------
Total magnification is calculated by objective times ocular lens. So if you increase the objective lens is directly related to an increase in magnification.
the power of the ocular lens multiplied by the magnification of the objective lens
The Canon EF 70 300mm lens has an image stabilizer, diffractive optics, and a 58 mm filter diameter. It has a minimum focusing distance of 1.5m with an object magnification of 1:4.
In 1822 Augustin Jean Fresnel invented the basis of the technology that went into making the Canon 70-300mm lens. The specific Canon EF 300mm lens was not invented, only modified from the original lens technology invented in 1822.
15 * 30 = 450 ------------
the eyepiece lens magnification X the magnification of the objective lens.
There are many ways one can order a Canon EF 75-300mm lens. One can order a Canon EF 75-300mm lens by making an account with the official Canon website, with Amazon, or with eBay.
Simply, multiply the magnification of the ocular lens times the magnification of the objective lens you have in place.
The total magnification is equal to the magnification of the eyepiece multiplied by the magnification of the objective lens. So in this case the objective lens would need to be 100X.
15 * 30 = 450 ------------
400
30
Each objective lens has a different magnification. Multiply the magnification of the eyepiece by the magnification of the objective lens to produce total magnification. For example, a 10X ocular lens and a 40X objective lens will produce a total magnification of 400X (10 x 40 = 400).
multiply the magnification of the eyepiece by the magnification of the high objective lens. for example, if the eyepiece magnifies x10, and the high objective magnifies x40, then the total magnification would be 400x