Overview: The Sony SAL35F18 is a small, lightweight wide
angle lens that features a large aperture (f/1.8) and fixed focal length of 35mm (35mm format equivalent focal length is 52.5mm) which makes it ideal for capturing wide scenes with
DT Lens Design: The DT Lens is a compact, lightweight lens designed
specifically for the APS-C-size imager used in most Sony Alpha-series DSLR
Note: DT lenses are not recommended for use with the Sony
DSLR-A900 or DSLR-A850.
Smooth Autofocus Motor (SAM): The built-in Smooth Autofocus Motor
(SAM) eliminates the need to use a mechanical coupling system in the camera body
to transfer auto focus (AF) drive power and control signals to the lens.
Instead, AF control signals from the camera body are sent to the lens-mounted
SAM unit, which drives the focusing lens group directly, helping to assure
smooth AF response.
Manual Focus: To focus manually using this auto-focus lens, set the camera
body to manual focus and adjust the focus ring on the lens. The shooting
distance scale, located on the barrel of the lens, is graduated in feet as well as
meters from 1.8' (0.23m) to infinity. For accurate manual focusing, look
through the viewfinder while rotating the focusing ring.
Lens Hood: The lens includes the ALC-SH111 lens hood to
reduce flare and ensure maximum image quality. When using the camera's built-in
flash, you should remove the lens hood to avoid blocking the flash light. You
can store the hood by mounting it backwards onto the lens. When attached, the
hood adds a little over 1" to the length of the lens.
Flash Precautions: When using a built-in camera flash, you
will have to shoot from at least 1 meter (3.3') away from your subject. With
certain lens/flash combinations, the lens may partially block the light of the
flash, resulting in a shadow at the bottom of the picture.
Vignetting: When you use the lens, the corners of the screen may
become darker than the center. To reduce this phenomenon (called vignetting), you
should close the aperture by 1-2 stops.
- Equivalent 35mm-format focal length: 52.5
- Lens Construction: 6 elements in 5 groups
- Angle of View: 44°
- Minimum Focus: 0.8' (9.6")
- Maximum Magnification: 0.25x
- Minimum f-stop: F22
- Filter Diameter: 55mm
- Weight: 6 ounces
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