Timeline for How do I convert lens focal length (mm) to x-times optical zoom?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Aug 25, 2015 at 13:31 | comment | added | Jill Rapley | Thank you Matt - yes I mean Canon SX50 - this certainly helps me in choosing lenses for the Sony also. | |
| Aug 20, 2015 at 19:25 | comment | added | mattdm | The Sony F3 has an APS-C sized sensor, 23.5mm across. I assume you mean Canon SX50, which has a sensor 6.17mm across — that's a ratio of 3.8×. That means that a 210mm lens on the Sony will give a horizontal field of view roughly like that of the Canon set to 55mm. The aspect ratio is different, though, so the diagonal or vertical equivalence is a little different. | |
| Aug 20, 2015 at 15:22 | review | Late answers | |||
| Aug 20, 2015 at 16:26 | |||||
| Aug 20, 2015 at 15:12 | review | First posts | |||
| Aug 20, 2015 at 16:26 | |||||
| Aug 20, 2015 at 15:03 | history | answered | Jill Rapley | CC BY-SA 3.0 |