MaryAnn wrote:
I have a Canon T3i and a Canon SX 50 HS. I shoot mostly on auto focus, however, I am experimenting with my Manual settings.
I was at the beach with both cameras on a sunny day and was trying to get a picture of the waves using a slow shutter speed. I used a shutter speed of 10, mounted on a tripod, ISO of 100 and several different F stops....the camera sounded like it was taking a picture but there were no pictures. This happened with both cameras. I had it set to cloudy. My T3i said there were no photos and my SX 50 came out all white.
What am I doing wrong?
Help.
I have a Canon T3i and a Canon SX 50 HS. I shoot ... (
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Have you heard of the SUNNY 16 RULE.
Can't tell you what you are doing wrong, but can make a suggestion to help you with a series of changes and dependencies that can change your results. Proper exposure can be obtained with full manual settings on your camera.
Sunny 16 has been around since early film days. It was the result of the unavailability of light meters for most photographers in early photography. Sunny 16 involves a correlation between the nature of lighting, the aperture, the shutter speed
and film speed (ISO).
The first thing to do to begin to use and understand SUNNY 16 is to take your camera OFF automatic IS0. True manual operation involves YOU controlling all three aspects of the triad for exposure, which include Shutter Speed, Aperture, AND film (or sensor) speed.
SUNNY 16 works just as well on learning appropriate ratios of the three elements of exposure. What most people overlook is that digital cameras are picking one of those elements all over the map unless ISO is taken off Automatic, and set near the native ISO for the sensor which is usually from 80 to 200 ISO. Low light can be factored in, but you must control it.
This offering by B&H explains turning off your meter, going strictly manual, and using the light under which you are shooting help you choose shutter speed and aperture relative to the light conditions and ISO setting.
With film, if your film speed was 200, and in sunny conditions, and the aperture set to f16, then shutter speed would be the reciprocal of the film speed, which in this example 1/200th.
In the example you posted everybody has made the assumption your shutter speed was Waaaaaaaaaaaay too slow, resulting in over exposure. This looks to be true.
With film, ISO was based on the film. With digital the ISO setting is the third controllable function of the exposure triad. However, if you are using ISO on Automatic, you are not controlling the camera fully manual.
I never shoot my camera's with automated ISO, unless I am using the camera on fully Automatic on all choices of the triad. When I am shooting full manual, I set my ISO to 200 and keep it there, unless the light conditions dictate otherwise.
The way we used to deal with low light with film was to buy faster film, typically limited on the high end to 1600. Film speed above that was typically considered surveillance film.
Once you understand SUNNY 16 and how to vary it, it's easy to check it out on digital because of the possibility of setting your ISO for each image. With film, all the settings were in the camera, but you needed a different roll of film to test various ISO's.
I am NOT suggesting that you uses SUNNY 16 exclusively and from now on. I am merely suggesting that understanding how SUNNY 16 works will take any photographer a large leap forward toward fully understanding the nature of lighing conditions in changing exposure settings, including the third most important setting... manual control of ISO.
Switch off every automatic function of the exposure triad for FULL manual operation. Shutter Speed, Aperture and ISO. Learn then how switching each one on to automatic affects the results as in controlling fast action, static landscape, Depth of Field.
So here is the B&H article on disregarding your meter and setting ALL your exposure factors manually, including ISO.
The link to B&H SUNNY 16:
http://www.bhphotovideo.com/explora/photography/tips-solutions/sunny-16-ruleSo, if you trully