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when toggle format what by license comment
Feb 12, 2016 at 7:06 comment added Nayuki The second sentence should read: The F-number is the focal length divided by the diameter of the aperture. (Wikipedia)
Feb 10, 2016 at 1:56 comment added Jules You understood my question even though it was apparently misleading to many other people and answered it perfectly. Thank you!
Feb 10, 2016 at 1:55 vote accept Jules
Feb 10, 2016 at 1:34 history edited Waddles CC BY-SA 3.0
wrong term used
Feb 10, 2016 at 1:22 review First posts
Feb 10, 2016 at 1:37
Feb 10, 2016 at 1:19 history answered Waddles CC BY-SA 3.0