Selecting a Sigma Camera Lens for Your Olympus Camera
Whether you are going to the beach or taking a walk to a nearby park, lenses allow you to capture many different types of photos and videos. The Sigma camera lens for Olympus can either come with a fixed focal length or zoom length, the latter of which provides you with different focal lengths that you can switch between. These lenses can be used with both film and digital camera technologies.
What types of cameras can these lenses be used with?A variety of camera types are available that work with these lenses, including:
- Single-lens reflex: This is a type of still camera that captures photos on film, such as 35-millimeter film. SLR cameras come with an electronic viewfinder and are outfitted with a mirror system inside.
- Digital SLR: This is a digital camera that comes with a variety of manual and automatic settings, such as for the aperture. DSLR cameras are outfitted with a digital sensor and are compatible with interchangeable lenses.
- Mirrorless: This is a camera that comes without a mirror system and usually accommodates interchangeable lenses. They are available in a small and compact form as well.
- Point-and-shoot: These cameras are usually small and come with a retractable lens. They are equipped with a number of automatic settings, such as an autofocus system.
The focal length of a camera lens is the distance between the lens and the digital sensor that is situated on the body of the camera. In general, this length determines how magnified the image is. A shorter length leads to a wide-angle image where a substantial amount of a scene is captured in a single photo. A long focal length leads to a magnified image as well as a small field of view. The focal length amounts available with these particular lenses can range from 10 mm to more than 400 mm.
What are some types of lenses that you can select?Multiple lenses, such as those from Sigma, are available to work with a variety of camera types:
- Wide angle: A wide-angle lens is any lens that comes with a short focal length, such as 20 mm. These lenses allow you to capture more of a scene when taking a picture.
- Macro: This is a lens that allows for the capture of close-up photos of small objects, which makes the object in the photo appear to be larger than life. These lenses are commonly outfitted with 1:1 magnification.
- Telephoto: This is a lens that comes with a long focal length, which results in an image that is both magnified and comes with a narrow field of view. The focal lengths found on these lenses usually begin at 60 mm and go up.
- Fish eye: This is a type of wide-angle lens that comes with a field of view that can extend as high as 180 degrees. These lenses create a distorted effect at the edges of the photo, which causes the image to appear to be hemispherical in shape.
- Zoom: This is a lens that comes with a varying number of focal lengths and aperture settings, providing you with the means of altering the length for a close-up or long shot with the change of the focus ring found on the lens.