Talk:Sunny 16 rule

message: Much of the content of the aperature/light table was lifted from The Ultimate Exposure Computer, which explictly denies the right to copy the material featured on the page for any purpose.  Copied the last version of the table in its place.
--Cintrom 22:27, 22 April 2006 (UTC)

message: In Germany they say: "f/8, wenn die Sonne lacht". If I do so, how do I have to adjust the time? Instead of 1/100 (@ ISO 100) then 1/400 or 1/800? --91.6.92.24 (talk) 16:22, 27 May 2012 (UTC)
replies: text: I personally feel that f/11 is more accurate than f/16 for average scene.  Something has to be pretty bright for f/16.  However, if you want to use the f/8 rule, since that opens the aperture by two stops compared to f/16, lower the shutter speed by two stops.  (Lenses are generally sharper at f/8 than f/16.)  Bubba73 You talkin' to me? 07:20, 6 April 2015 (UTC)
thread_title:  f/16 compared to f/8 

message: What is a "step"?  The sentence is talking about a change of 1 f-stop, since the exposure time is halved.  Bubba73 You talkin' to me? 22:57, 11 June 2019 (UTC)
replies: text: I asked on the photography group and they also think that "step" is ambiguous.  Bubba73 You talkin' to me? 02:47, 13 June 2019 (UTC)
replies: text: All that I know call them stops, though I don't know so well the reasoning. Many now have steps, increments that you can set, of 1/2 stop or 1/3 stop. I believe stop is the WP:COMMONNAME, whether or not it should be. Gah4 (talk) 13:34, 15 June 2019 (UTC)
replies: text:  I think they are called "stops" because lenses with aperture rings have stops at f/1.4, f/2.0, f/2.8, etc.  Each change of 1 stop changes the light by a factor of two - higher or lower depending on which way you are going.  Shutter speeds correspond to that change. Aperture says "In general, these structures are called stops...".  "Stop" is used in that article more than 40 times and "step" is never used.  Bubba73 You talkin' to me? 16:08, 15 June 2019 (UTC)
replies: text: Many of the earlier cameras used a waterhouse stop, a disk with holes in it that could be set with one of the holes in the appropriate position. Exactly why it is called a stop, is hard to know. Most apertures now are continuous, though with detents at appropriate positions, sometimes at half stop increments. Gah4 (talk) 00:03, 16 June 2019 (UTC)
replies: text: I believe that calling the unit an f-stop is fine, in the case of aperture settings, but as noted, stop is probably best.  Gah4 (talk) 00:06, 16 June 2019 (UTC)
thread_title:  step versus stop 

message: In the paragraph in question, it indicated that one can open the aperture, and in compensation halve the shutter speed.  There is a complication in shutter speeds, that they are commonly written in units of seconds, or fractions thereof, and so not speeds.  In contrast, one says increase the speed, appropriate for the usual meaning of speed, when setting a shorter shutter open duration.  Note that, corresponding to ASA and ISO values, a higher value means higher speed, and so halve should indicate a slower shutter speed. It would be best to avoid this ambiguity and not use the word halve. Gah4 (talk) 00:11, 16 June 2019 (UTC)
replies: text: Maybe instead of "shutter speed" it should say "exposure time".  Bubba73 You talkin' to me? 01:07, 16 June 2019 (UTC)
replies: text: That should work.  Gah4 (talk) 04:05, 16 June 2019 (UTC)
thread_title:  halve