- #1
supermankid
- 14
- 0
First of all, Let me present some of the things I found from research. (considering convex lens)
Interpretation 1 => Focal length
is the distance from the center of the lens to the point where all rays converge.
Interpretation2 => Focal length
is the distance from the point of convergence to the place where image is formed.
1) I understand both but cannot combine two to make sense.
2) What determines the sharpness of the image.
In case of interpretation2, where is the best place to put the screen or sensor to get the best focused image.
In this case, the focal length could be any based on location of the screen, is not it?
Please save me from these dilemma...
Interpretation 1 => Focal length
is the distance from the center of the lens to the point where all rays converge.
Interpretation2 => Focal length
is the distance from the point of convergence to the place where image is formed.
1) I understand both but cannot combine two to make sense.
2) What determines the sharpness of the image.
In case of interpretation2, where is the best place to put the screen or sensor to get the best focused image.
In this case, the focal length could be any based on location of the screen, is not it?
Please save me from these dilemma...