This Digital Photography session will be about Shutter Speed preference. Bill and Jim will lead this session with theory, demonstrations and a practice session where Bill will give a racing bike sprint performance. We will also study long time exposure, so we advise you to bring a tripod along if you have one.
So study up a bit in advance. Have a look at your camera manual, and figure out how to put your camera in “Shutter Preference” or “Sports” mode. For very long time exposures you might want to see if your camera has “Bulb” or “B” mode. Below are two videos to prepare yourself to get the most out of this session.
For video 1 click here
For video 2 click here
I will prepare more content for this page, when I have downloaded my photos and conferred with Bill and Jim.
The page is now open for submissions.
Bill found this excellent website that gives a lot of detail on the subject of shutter speed https://www.davemorrowphotography.com/shutter-speed-chart
Here is a quick rundown on what Bill covered during the Oct 10 session.
Thanks Bill for your excellent performance on the job and the write up you gave below.
Tack sharp Pictures in low light, such as indoors, or outdoors later at night.
As a rule of thumb, you cannot expect to hand hold your camera and get sharp images for shots with shutter speeds slower than 1 divided by the length of the lens. e.g. lens length 200 mm then the slowest handheld shutter speed 1/200 sec.
Maintain a stable camera by:
- use a tripod or shorter triangle base of support like a gorillapod with cable or remote shutter release. Or set shutter to release 2 or more seconds after depressing the shutter button.
- use a monopod with cable or remote shutter release. Or set shutter to release 2 or more seconds after depressing the shutter button.
- use a sturdy cord from base of camera to underneath the forward foot.
Note: If your camera has optical image stabilization be sure that it is activated when shooting hand held and NOT turned on when on a tripod as the system will be in a state of constantly searching leading to less than tack sharp images.
When none of the above is available, use good body mechanics as follows:
- hold camera with left hand under not over the lens.
- maintain stable base with weight equally distributed on both feet one foot slightly ahead of the other and a wide stance.
- pull your arms in tightly to your ribs.
- place the viewfinder against your glasses or eyebrow so now movement is possible between your face and the rear of the camera. ( this is why many photographers insist their camera have a viewfinder not just a rear screen.)
- if kneeling on one leg keep your left foot flat in front and place your left elbow on the left knee. Upper body remains the same as in standing
- if sitting place both feet flat on the floor and elbows on the same side knee. Upper body remains the same as in standing
- if lying down prop elbows out in front and maintain camera / face connections as above.
Sometimes there are situations you might want to use slow shutter speed on purpose An example might be to get a feeling of motion. Here is a picture that Ruth took last winter at the Speed skating Oval. Beside the tilt of the skaters, the blurred background adds to the feeling of action.
At other times you might want a slow shutter speed to show the flow of water at a river or waterfall for instance.
To achieve very slow shutter speeds during daylight conditions, you can add a neutral density filter. These are like “smoked” glass and reduce the amount of light coming into the lens. They are available in several levels of darkness called “stops”. Either a threaded filter that screws into the lens ring or a clip-on or slide arrangement with multiple filter options, like Jim showed us at the Rosedale session.
The other way to get a slow shutter speed is to lower the ISO (sensor sensitivity) setting on your camera. Check your camera manual on how to do this. Most camera have a “ISO” button on the top of the camera that brings up the ISO choices on the LCD screen of your camera. Low ISO settings such as 100 allow you to have slower shutter speeds. High ISO settings are used in poor lighting conditions, so your shutter speeds stays reasonably fast when you don’t have a tripod, and want to take sharp pictures hand held.