What is lens formula and magnification? The lens formula is 1/f = 1/Do + 1/Di where f is the focal length of the lens, Do is the distance from the object to the lens and Di is the distance of the projected image to the lens. The magnification equation is M= Hi/Ho = -Di/Do...
The magnification is determined for a divergence lens according to a formula; P=1/L (1=W/w). In the formula, P=magnification diopter of the lens 16, L=distance between the table 10 and the array 11, w= diameter of the beam 12 when the lens 16 is not present, W=diameter of the...
The Canon EF 28-300mm IS Lens has a zoom range of 10.7x. To get the binocular-like viewfinder magnification value of a lens, divide the focal length by 50. A formula that is easier (for me at least) to calculate in my head is to divide the focal length by 100 and multiply by...
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula? A converging mirror forms a real i...
I simply photograph a ruler, making a note of the number of mm I get with this and that combo of lens and thingjamings attached. I've been doing the 23,5 / mm since I shoot APS-C. Those numbers I then get I've used as my magnification ratio. While they are meaningfull to me...
What is V and U in mirror formula? The distance between the object and the pole of the mirror is called the object distance(u). Thedistance between the image and the pole of the mirroris called Image distance(v). What is the magnification of a convex lens?
For some special telescopes, the light path may be refracted by theinternal prism or plane mirror, which will shorten the length of the actuallens barrel, and the ridge shape refraction is not easy to observe evenoutside. In addition, the telephoto lens has a special structure, although it...
Thats my understanding, Im not remotely a physicist or an optical engineer, Just a random guy on a forum Because microscopes are conjugate focal systems, the formula for them is r = 0.61 λ/NA where NA is numerical aperture, NA = n sin(θ) where n = refractive index of the medium bet...
But whether day or night, my most used eyepiece is its 80x/160x Erfle, and I regularly use it at 160x. That works out to the usual formula of 50x/inch for normal seeing, and 300x is ~100x/inch (in excellent seeing), so I was satisfied. I don't recall any dimming other than...
See also the article on imaging with a lens.Magnification of a Telescope The angular magnification is what is relevant for a telescope. The situation with an optical telescope for direct viewing is profoundly different. The objects are usually placed at a large distance from the telescope objective...