Sony FE 100mm f/2.8 STF GM OSS Lens

One of Sony’s more unique lenses, the FE 100mm f/2.8 STF GM OSS is a specialized riff on an optimized portrait lens, making use of Smooth Trans Focus technology to yield an especially smooth and round bokeh. This design incorporates an apodization filter (APD element) into the optical design, which essentially functions like a radial graduated ND filter that helps achieve more circular out-of-focus highlights and more pleasing selective focus and shallow-depth-of-field effects. Beyond this distinct design, the 100mm f/2.8 has all of the traits of any other G Master lens, including advanced optics for high sharpness and clarity, a Nano AR coating, and a Direct Drive Super Sonic wave Motor AF system for quick performance. Also, balancing the relatively slow design, due to the APD element, OSS helps in reducing the effects of camera shake for sharper handheld use.

Sony FE 100mm f/2.8 STF GM OSS Lens
Sony FE 100mm f/2.8 STF GM OSS Lens

Applications: Perfect for portraiture, the 100mm focal length offers the desired length and separation, and the inclusion of an apodization filter further contributes to a smooth and pleasing aesthetic. Despite the slower design, this lens has all of the assets to flatter subjects and achieve the smoothness required for portraiture.

Perks

+ G Master lens, advanced optics

+ Apodization filter for smooth bokeh; unique look

+ OSS helps reduce effects of camera shake

+ Weather sealed

+ Physical aperture ring with de-click switch

Drawbacks

Specialized lens, niche appeal

- Relatively slow due to APD filter

Specs

Focal Length 100mm
Aperture Range f/2.8 to f/20 (T5.6 to T22)
Optical Layout 13 elements, 9 groups

(2 extra low dispersion elements, 2 aspherical elements)
Coating Not specified
Minimum Focusing Distance 3.3' / 1 m
Maximum Magnification 0.23x
Diaphragm Blades 7
Image Stabilization Yes
Filter Size 49mm
Dimensions 2.5 x 4.25" / 63.8 x 108mm
Weight 12.2 oz / 345 g

Sample Images