| Display title | Physics:Guide number |
| Default sort key | Guide number |
| Page length (in bytes) | 90,305 |
| Namespace ID | 3020 |
| Namespace | Physics |
| Page ID | 620737 |
| Page content language | en - English |
| Page content model | wikitext |
| Indexing by robots | Allowed |
| Number of redirects to this page | 0 |
| Counted as a content page | Yes |
| Page image |  |
| HandWiki item ID | None |
| Edit | Allow all users (infinite) |
| Move | Allow all users (infinite) |
| Page creator | imported>Gametune |
| Date of page creation | 00:56, 16 March 2024 |
| Latest editor | imported>Gametune |
| Date of latest edit | 00:56, 16 March 2024 |
| Total number of edits | 1 |
| Recent number of edits (within past 90 days) | 0 |
| Recent number of distinct authors | 0 |
Description | Content |
Article description: (description)
This attribute controls the content of the description and og:description elements. | When setting photoflash exposures, the guide number (GN) of photoflash devices (flashbulbs and electronic devices known as "studio strobes", "on-camera flashes", "electronic flashes", "flashes", and "speedlights") is a measure photographers can use to calculate either the required f‑stop for any given... |
