127 reputation
6
bio website article-stack.com
location India
age 29
visits member for 1 year, 10 months
seen May 5 '13 at 11:58

Not right now


Aug
17
awarded  Popular Question
May
4
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?
May
3
awarded  Commentator
May
3
comment Why do focal lengths affect magnification?
any reference for this?
Apr
27
awarded  Student
Apr
27
asked Why do focal lengths affect magnification?
Mar
2
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.
Mar
2
comment calculating focal length of meniscus lens
Wooo!! thanks. I was looking for this only.
Mar
2
accepted calculating focal length of meniscus lens
Feb
27
comment calculating focal length of meniscus lens
@JohnRennie, my question is related to real time practical and divergent lens.
Feb
23
asked calculating focal length of meniscus lens
Feb
15
accepted Do I need to focus the telescope?
Feb
15
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.
Feb
15
answered Do I need to focus the telescope?
Feb
14
asked Do I need to focus the telescope?
Jan
16
awarded  Editor
Jan
8
awarded  Scholar
Jan
8
accepted Ideal distance of eye from a lens
Jan
7
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.
Jan
7
asked Ideal distance of eye from a lens