![Lens Focal Length and F-stop | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global Lens Focal Length and F-stop | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global](https://av.jpn.support.panasonic.com/support/global/cs/dsc/knowhow/common/img/knowhowfig01_01l.png)
Lens Focal Length and F-stop | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global
The relation between focal length F magnification m and image distance v of a spherical mirror of small aperture is given by
![Lens Basics: Everything You Need to Know About Focal Length from Magnification to Crop Factor (VIDEO) | Shutterbug Lens Basics: Everything You Need to Know About Focal Length from Magnification to Crop Factor (VIDEO) | Shutterbug](https://www.shutterbug.com/images/styles/600_wide/public/promofoca5117l.png)
Lens Basics: Everything You Need to Know About Focal Length from Magnification to Crop Factor (VIDEO) | Shutterbug
![lenses - Is it possible to calculate image distance by knowing magnification and focal length? - Physics Stack Exchange lenses - Is it possible to calculate image distance by knowing magnification and focal length? - Physics Stack Exchange](https://i.stack.imgur.com/Yz2ps.jpg)
lenses - Is it possible to calculate image distance by knowing magnification and focal length? - Physics Stack Exchange
![SOLVED: A lens that has a focal length of 5.00 cm is used as a magnifying glass (a) To obtain maximum magnification and an image that can be seen clearly by normal SOLVED: A lens that has a focal length of 5.00 cm is used as a magnifying glass (a) To obtain maximum magnification and an image that can be seen clearly by normal](https://cdn.numerade.com/ask_images/44b519e80aa74d45a6614d515e93cc2e.jpg)