# articlestack

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bio website article-stack.com location India age 29 member for 1 year, 11 months seen May 5 '13 at 11:58 profile views 12

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# 21 Actions

 Aug17 awarded Popular Question May4 comment Why do focal lengths affect magnification? So in simple words, it is because of angular magnification. When focal length of objective lens increases, angle subtended by the objective lens gets decreased. Hens magnification gets increased. Am I correct? May3 awarded Commentator May3 comment Why do focal lengths affect magnification? any reference for this? Apr27 awarded Student Apr27 asked Why do focal lengths affect magnification? Mar2 comment calculating focal length of meniscus lens So if I use .25 diopters power lens with 6mm eyepiece(to make a telescope), I can get magnification up to 6667. But I have to keep 40006 mm distance between both lenses which is not recommended. Mar2 comment calculating focal length of meniscus lens Wooo!! thanks. I was looking for this only. Mar2 accepted calculating focal length of meniscus lens Feb27 comment calculating focal length of meniscus lens @JohnRennie, my question is related to real time practical and divergent lens. Feb23 asked calculating focal length of meniscus lens Feb15 accepted Do I need to focus the telescope? Feb15 comment Do I need to focus the telescope? Thanks @Chris, You game me an idea how to focus. Problem was with telescope tube. I have updated another answer with my experience based on your answer. Feb15 answered Do I need to focus the telescope? Feb14 asked Do I need to focus the telescope? Jan16 awarded Editor Jan8 awarded Scholar Jan8 accepted Ideal distance of eye from a lens Jan7 comment Ideal distance of eye from a lens I was looking for some standard formula like if focal length of lens is x then what should be the idle distance of eye from eyepiece for upright or for inverted image. I hope it'll not dependent on number of lenses. Because it is about to be one always. Jan7 asked Ideal distance of eye from a lens