5.6 vs. Sunny 16

stevet1

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I've read that 5.6 is a good average aperture to use.
Lately, I've learned about the Sunny 16 method. I know that circumstances are going to vary, but which would be better to use?

Steve Thomas
 
Sunny 16 doesn't mean you have to use f/16. It's just a starting point to guesstimate exposure.

Once you figure your shutter speed, you can start changing them.
 
I've read that 5.6 is a good average aperture to use.
Lately, I've learned about the Sunny 16 method. I know that circumstances are going to vary, but which would be better to use?
f/5.6 might be good for some circumstances, but probably not for every shot. Depends on what you want for the DOF, and the light conditions. Somebody told you that the mid-range aperture settings will probably give you a decent DOF, and many lenses actually perform better in the mid range.

The "sunny 16" rule of thumb is a reasonable starting point when guessing at the exposure when you don't have a light meter. (Your camera has a light meter in it.)

I'd say don't use either one reflexively, but use the technology that is in your camera to determine the correct exposure.
 
I've read that 5.6 is a good average aperture to use.
Lately, I've learned about the Sunny 16 method. I know that circumstances are going to vary, but which would be better to use?

Steve Thomas
Maybe it is my imagination, but it seems like there are a lot of these "Better/Best" type of questions lately.

Anyway.......Do you understand the different look you will get between 5.6 and 16.?

If you want f/5.6 and you have the shutter speed (or ND filter) go for it. :)
 
An aperture value of f/5.6 gives you a shutter speed that is three stops faster then the speed needed for f/16. An aperture value of f/16 is very small and will usually cut down absolute sharpness compared with f/5.6, due to the effect of something called diffraction. However f/16 will have substantially more depth of field than will f/5.6.
If you use the "sunny 16" rule by setting the shutter speed to1/100 of a second and use and Use an ISO level of 100,your shutter speed will be too slow for many types of action photographs, so it would be far better to use f/5.6 and a shutter speed that is three exposure value levels faster than 1/100 --or in other words 1/800 of a second at F5.6

The idea that there is a best aperture or even a good average aperture to use is like saying that, "driving in third gear is the best"...
 
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Wherever you read that f5.6 was a good average aperture to use seems to be providing some inaccurate information (at least I don't get why that would be recommended). You'd do better to learn how to meter a scene to determine if you're getting an appropriate amount of light for a proper exposure.

Seems like Sunny 16 was usually used in a pinch if a photographer didn't have a meter handy.
 
F/5.6 is a common aperture as it is the maximum aperture for many "kit lenses", so lots of people will just set their aperture to f/5.6 and adjust from there to get proper exposure as that is the widest aperture they have at their disposal. I did it all the time when I was getting started. And there is nothing wrong with f/5.6, I used it the other day to get the DOF I needed for a specific shot due to my distance to my subject. And I was using f/1.4 glass, if I had shot at an aperture of f/1.4 from that distance I might have only had a half an inch of depth of field instead of the 4 or so inches f/5.6 gave me. I wanted everything from the tip of his nose back to his ears in focus.


850_2164.jpg
 
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I would look up the review on your lens and find the sweet spot and go from there.
 
I've read that 5.6 is a good average aperture to use.
Lately, I've learned about the Sunny 16 method. I know that circumstances are going to vary, but which would be better to use?

Steve Thomas

In general:
If you are a beginner, instead of thinking f/5.6 is a good average aperture and learn about Sunny 16, I'd recommend you take a look at how the aperture affect the photos and how to effectively use the camera build-in reflective light meter with exposure compensation if needed.



For choosing a aperture, you need to find out when you should shoot wide open or should NOT. In what circumstances that you better shoot with a smaller aperture or a doesn't matter aperture hence lens sweet spot (best aperture for a lens at a given focal length which produce a sharpest image) comes into play.

Personally, I do not think there is a good average aperture to use, it all depends on what you are capturing, how you like your photos looks and what equipment you are using. Portrait photo with background isolation photo is going to be different than taking a wide view photo of the mountain in a distance and is going to be different than taking a head shot of a bee. Once you know more about the effect of the aperture on the photos and practice for awhile, you maybe able to choose the right aperture of the photo.
 
many fast-maximum sperture prime lenses have exquisite performance at F5.6. Most prime lenses between 24 mm and 135 mm offer extreme sharpness and high contrast at F5.6
 

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