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- Digital cameras have mirror systems inside.
- DSLR cameras have detachable lenses.
- Prime lenses only have one focal length.
- Zoom lenses have variable focal lengths.
- Kit lenses are basic lenses that come with a camera body in a “kit” and are usually inexpensive.
- 100mm lenses are usually used for portraits.
- 200mm plus are used for sports, birds, and wildlife.
- Lenses less than 21mm are usually used for architecture and give a wide angle.
- When there is more available light use a lower ISO.
- When there is less available light use a higher ISO.
- You should use the lowest ISO to avoid grain/noise.
- Higher shutter speeds will capture fast action.
- The shutter in a camera is half a circle.
- The camera shakes and the image becomes blurry with a shutter speed slower than 1/ [focal length] of a second.
- The fraction of aperture or f-stop is focal length divided by lens diameter.
- Fast lenses have a bigger maximum aperture.
- Larger aperture means a shallower depth of field.
- Longer lenses appear to have a shallower depth of field because they are magnifying the subject.
- A lens is defined with mount, prime/zoom, series, maximum aperture, and focal length.
- DSLR cameras use the kelvin temperature numerical value to adjust how colors look.
- Many cameras have presets such as daylight, cloudy, flash, and indoor lights.
- Full- auto mode does everything for you.
- Creative auto mode lets you choose brightness, depth of field, and picture style.
- Program mode sets shutter speed and aperture, but lets you choose ISO, AF/MF, and white balance.
- Aperture Priority mode lets you choose aperture, but camera chooses appropriate shutter speed.
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