Apertures for pinhole cameras
ExpoDev labels apertures according to the standard progression of f-stops in 1/6th of a stop increments. However, some pinhole cameras specify apertures in a non-standard way. In order to use ExpoDev with these cameras you will need to know the standard aperture (in f-stops) to use for your camera. This chart will help you convert non-standard aperture to f-stop apertures. Just find the non-standard value in the chart and use the corresponding standard aperture in ExpoDev.
Note: If you cannot find the exact non-standard aperture your camera uses, just find the closest one - any difference will be less that 1/6th of a stop.
| Non-standard apertures | Standard Apertures |
| ƒ/64 | ƒ/64 |
| ƒ/68 | ƒ/64 1/6 |
| ƒ/72 | ƒ/64 1/3 |
| ƒ/76 | ƒ/64 1/2 |
| ƒ/81 | ƒ/64 2/3 |
| ƒ/85 | ƒ/64 5/6 |
| ƒ/90 | ƒ/90 |
| ƒ/96 | ƒ/90 1/6 |
| ƒ/102 | ƒ/90 1/3 |
| ƒ/108 | ƒ/90 1/2 |
| ƒ/114 | ƒ/90 2/3 |
| ƒ/121 | ƒ/90 5/6 |
| ƒ/128 | ƒ/128 |
| ƒ/136 | ƒ/128 1/6 |
| ƒ/144 | ƒ/128 1/3 |
| ƒ/152 | ƒ/128 1/2 |
| ƒ/161 | ƒ/128 2/3 |
| ƒ/171 | ƒ/128 5/6 |
| ƒ/180 | ƒ/180 |
| ƒ/192 | ƒ/180 1/6 |
| ƒ/203 | ƒ/180 1/3 |
| ƒ/215 | ƒ/180 1/2 |
| ƒ/228 | ƒ/180 2/3 |
| ƒ/242 | ƒ/180 5/6 |
| ƒ/255 | ƒ/255 |
| ƒ/271 | ƒ/255 1/6 |
| ƒ/287 | ƒ/255 1/3 |
| ƒ/304 | ƒ/255 1/2 |
| ƒ/323 | ƒ/255 2/3 |
| ƒ/342 | ƒ/255 5/6 |
| ƒ/360 | ƒ/360 |
| ƒ/384 | ƒ/360 1/6 |
| ƒ/406 | ƒ/360 1/3 |
| ƒ/431 | ƒ/360 1/2 |
| ƒ/456 | ƒ/360 2/3 |
| ƒ/483 | ƒ/360 5/6 |
| ƒ/512 | ƒ/512 |
| ƒ/542 | ƒ/512 1/6 |
| ƒ/575 | ƒ/512 1/3 |
| ƒ/609 | ƒ/512 1/2 |
| ƒ/645 | ƒ/512 2/3 |
| ƒ/683 | ƒ/512 5/6 |
| ƒ/724 | ƒ/724 |
| ƒ/767 | ƒ/724 1/6 |
| ƒ/813 | ƒ/724 1/3 |
| ƒ/861 | ƒ/724 1/2 |
| ƒ/912 | ƒ/724 2/3 |
| ƒ/967 | ƒ/724 5/6 |
| ƒ/1024 | ƒ/1024 |
| ƒ/1085 | ƒ/1024 1/6 |
| ƒ/1149 | ƒ/1024 1/3 |
| ƒ/1218 | ƒ/1024 1/2 |
| ƒ/1290 | ƒ/1024 2/3 |
| ƒ/1367 | ƒ/1024 5/6 |
| ƒ/1448 | ƒ/1448 |
| ƒ/1534 | ƒ/1448 1/6 |
| ƒ/1626 | ƒ/1448 1/3 |
| ƒ/1722 | ƒ/1448 1/2 |
| ƒ/1825 | ƒ/1448 2/3 |
| ƒ/1933 | ƒ/1448 5/6 |
| ƒ/2048 | ƒ/2048 |