The Sony Carl Zeiss Sonnar T 135mm f/1.8 Telephoto Lens is a high-performance telephoto lens with the widest aperture in its class. Whether you’re shooting a distant mountain peak or a beautiful orchid at arm’s length, the Sony 135mm f/1.8 Telephoto Lens provides amazing image quality.
Its f/1.8 aperture makes it the brightest telephoto lens in its class – and with 35mm-equivalent 202.5mm focal length plus the ability to focus tightly on objects closer than three feet away, it can cover an amazing range of photographic assignments.
Ultra-Bright Images
At fully open f/1.8 aperture (the best in its class), this high-performance 135mm lens creates amazingly bright telephoto images.
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Superb Sharpness
In conjunction with the Super SteadyShot image stabilization system of the Sony ± (alpha) DSLR-A100 camera, this lens gives you excellent results even working with hand-held camera by available light.
Close-up Focusing
You can capture professional-quality images of both faraway scenes and objects closer than three feet.
Features:
- Image circle format: 35mm (18? angle of view)
- Focal length equivalent when mounted on an APS-C format DSLR: approx. 202.5mm (12? angle of view)
- Lens configuration: 8 elements in 6 groups (incl. 2 optical elements for apodization)
- Aperture blades: 9 in auto mode, 10 in manual mode (circular aperture)
- Minimum aperture: F31 [T32] (T = Transmissive brightness)
- Minimum focus distance: 0.87m / 34-1/4″
- Max. magnification ratio: 0.25x
- Filter size: 72mm
- Lens hood: bayonet-mount round
- Dimensions (max. diameter x length): 80 x 99mm / 3-1/8 x 3-7/8″
Internal Focusing System
Internal lens elements move to increase auto-focus speed to help you catch quick action.
ED (Extra-low Dispersion) Glass
Two ED Glass lenses minimize flare and greatly reduce chromatic aberration, giving you sharp, clear telephoto shots.
Specification:
Aperture (Max.) : f/1.8
Aperture (Min.) : f/22
Aspheric Elements : no aspheric
Blades : 9 aperture blades
Depth-of-Field : Yes
Distance Encoder : Yes
Distance Scale : Yes
Focal Length : APS: 202.5mm (Equivalent: 135mm)
Focus-hold Button : Yes
Lens Groups-Elements : 8 groups, 11 elements
Lens Type : Standard & Medium Telephoto
Magnification : x 0.25
Minimum Focus Distance : 2Æ 5ö (72cm)
Non-rotating Focusing Ring : Yes

