SONY 135MM F2.8 [T4.5] STF (A-MOUNT MODEL SAL-135F28)

The 135mm F2.8 [T4.5] STF (SAL135F28) is a manual focus 35mm format compatible lens that is truly in a league of its own. With conventional lens design, it is extremely difficult to balance the demands of crisp, aberration-free imaging and smooth defocusing. But with this lens's unique STF (Smooth Transition Focus) design, these two conflicting goals are uncompromisingly achieved.

The lens consists of 8 elements arranged in 6 groups, with the fifth and sixth elements bonded together to create an apodization optical element that is mounted directly behind the aperture iris. It boasts exceptionally high contrast and resolution that ensure ultra-crisp imaging, while the apodization optical element smooths the transition between in-focus and out-of-focus areas of the image to offer distinctively richer, more refined defocusing of the foreground and background.

Ideal for portraits, landscapes, and close-up work, the 135mm F2.8 [T4.5] STF also features a circular stepless manual aperture mechanism to enable fine control of imaging and defocusing characteristics.

Specifications:

• Image circle format: 35mm (18º angle of view)
• Focal length equivalent when mounted on an APS-C format DSLR: approx. 202.5mm (12º 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"
• Weight: approx. 730g /1 lb 9.7 oz
• Teleconverter support
• Included accessories: lens hood, carrying case

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