![Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius](https://www.rp-photonics.com/img/focal_length.png)
Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius
DoF Calculator with Macro & Focus Stacking modes!: Macro and Still Life Photography Forum: Digital Photography Review
![I see a lot of questions about macro, so I tried to make a mini-FAQ people can just refer to. Let me know if I missed anything. : r/photography I see a lot of questions about macro, so I tried to make a mini-FAQ people can just refer to. Let me know if I missed anything. : r/photography](https://d2vlcm61l7u1fs.cloudfront.net/media%2F542%2F5424e082-be81-4332-b1ea-4425270cc1a9%2FphpUsXdXk.png)
I see a lot of questions about macro, so I tried to make a mini-FAQ people can just refer to. Let me know if I missed anything. : r/photography
![macro - How can the focal length for shake reduction be determined when the lens is mounted using a reverse lens adapter? - Photography Stack Exchange macro - How can the focal length for shake reduction be determined when the lens is mounted using a reverse lens adapter? - Photography Stack Exchange](https://i.stack.imgur.com/YjO2s.png)