Timeline for Help motivate me to use my SLR's manual mode
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
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| Jun 16, 2020 at 11:21 | history | edited | CommunityBot |
Commonmark migration
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| Dec 9, 2010 at 15:11 | history | edited | AJ Finch | CC BY-SA 2.5 |
add wide aperture = small f-number thanks to @Benjol
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| Dec 9, 2010 at 11:34 | comment | added | lindes | Yes, wide aperture = small f-number. The "f-number" is expressed in terms of a ratio - f/x, where x is the "f-number" and f is the focal length of the lens... so, f/4, for a 100mm lens (say, because the math is easy) has an actual physical opening of 25mm (100/4 = 25). f/8 gives 12.5mm for the same lens, though for a 50mm lens, f/4 is 12.5. The details of this math are rarely important when taking pictures, but perhaps knowing this will help you remember how the numbers go. | |
| Dec 9, 2010 at 11:00 | comment | added | Benjol | Illustrated! +1 :) Remind me: wide aperture = small f-number, yes? | |
| Dec 9, 2010 at 10:56 | history | answered | AJ Finch | CC BY-SA 2.5 |