Prices: Autofocus Cameras
Horizon 202 Russian Panoramic Camera Lot Of 5 Cameras ...
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Pages in category "Autofocus cameras"
The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes (learn more).
Autofocus cameras can often introduce an additional focus delay, although this can sometimes be avoided by initial pressure on the shutter release, which causes some cameras to focus and set the exposure, before full pressure fires the shutter.
Autofocus cameras focus where you point them. That seems obvious enough, but lots of people don't seem to understand its full meaning. On the viewfinder screen of any AF point-and-shoot camera, you'll see a pair of brackets (or sometimes a circle).
Autofocus cameras which do not offer a choice most often use S-AF. You may be able to 'trick' cameras by using the preset shooting modes; Action and Children modes will typically use C-AF while most other modes, especially Close-up, ...
Electronic Optical System; Canon's current line of autofocus cameras and accessories.
Top of Page E-TTL (Canon)
Evaluative, through-the-lens flash metering.
Top of Page EV ...
Just because you own a fast autofocus camera doesn't mean you should rely on the camera for focusing. Autofocus cameras lock focus wherever the focus bracket is pointing at.
Active autofocus cameras emit an infrared beam which is reflected by the subject so the camera can focus on it. Infrared instead of visible light is ideal for "candid" shots as the subject will not be aware of the camera focusing on them.
Shutter Priority (See also: Aperture Priority) An exposure mode on an automatic or autofocus camera that lets a photographer select the desired shutter speed while the camera sets the aperture for proper exposure.
Another type of autofocus camera uses sonar or infrared These systems emit either a sonar or infrared signal to determine subject distance.
An exposure mode on an automatic or autofocus camera that lets you set the aperture while the camera sets the shutter speed for proper exposure. If you change the aperture, or the light level changes, the shutter speed changes automatically.
(If you're using a quick-reacting autofocus camera, you may not have to deal with this.) Let's say there are runners on second and third.
Linear polarizers work well with manual focus cameras, but they interfere with autofocus cameras. Circular polarizers contain another element - a "quarter wave" plate - which ensures compatibility of the filter with autofocus systems.
Then came Autofocus cameras and I put my Ricoh aside. Later I passed it on to my niece. I sometimes grow tired of the lack of control and limitations of Autofocus cameras, but still enjoy taking a small light camera with me. Then came E-Bay.
Active autofocus cameras bounce infrared beams off the subject to determine what the focal length of the lens should be. Passive autofocus cameras use the light falling on photocells to determine the correct focus.
Even autofocus cameras require accurate distance estimation to determine exposure. All of this is complicated by the fact that we see the world in "apparent distance" under water.
If you have an autofocus camera You can use the autofocus points as references to help you imaging the grid. If you use an LCD screen to compose your images you can make a rule of thirds grid out of a clear sheet of window cling material.
Focusing system in some of the latest autofocus cameras that takes measurements of the subject distance from various parts of the image area, rather than just the centre.
Some autofocus cameras will give you an audible or visible focus confirmation when the subject is in focus; use it.
However, with an autofocus camera the critical focus point must be in the center. The technique for doing this is found in the camera's manual.
Aperture Priority An exposure mode on an automatic or autofocus camera that lets you set the aperture while the camera sets the shutter speed for proper exposure.
You must be able to use manual focus, even if it's an autofocus camera. You must be able to set exactly what shutter speed and aperture you want, even if it differs from what the camera's built in light meter says.
EF lens
The lens of the Canon EOS autofocus camera system.
(see EOS & Bayonet)
ESP
'Electro Selective Pattern' a Matrix style metering found in Olympus cameras.
(see Matrix) ...
Electronic sensor used by all autofocus cameras, capable of detecting subject contrast; also an image-receiving device for video camera.
Cds ...
A polarizing filter will cut reflections if the subject isn't metallic. Circular polarizing filters are required on autofocus cameras. Sometimes polarizing filters are put on the studio lights.
And if you've got the right tool for shooting birds and it happens to be a digital, image-stabilized autofocus camera, then great. I'm not going to try to shoot a spoonbill flying into the camera with my 4x5. I'd be insane.
And the total 200 watts is plenty to give every autofocus camera enough illumination to focus precisely. Also, under the modeling lights, the model's pupils become smaller, reducing or avoiding any red-eye effect.
A flexible cable with a plunger on one end that is attached to a camera's shutter release. When the plunger is pressed, the shutter is tripped. They are now available as multi-function electronic remotes with most of the newer autofocus cameras.
Circular Polarizing Filter Converts linear polarized light waves to circular polarized light waves. Required whenever polarizing is desired using autofocus cameras and cameras that have semi-silvered reflex mirrors.
I suggest you resort to manual focus as the sensor of an autofocus camera may find it hard to distinguish contrast in the sky. If you waste a lot of time trying to autofocus, you may lose a great shot as rainbows don’t often last a long time.
 See also: Autofocus, Focus, Camera, Photograph, Image
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