Sony has taken the wraps off of two full-frame new mid-telephoto prime lenses. The company is making big claims about bokeh produced by the FE 100mm F2.8 STF OSS GM, which it says is improved by the use of an apodization (APD) element. The optical design is said to minimize vignetting, and the lens offers an 11-blade aperture. A macro switching ring engages the lens' close focus capabilities for shooting subjects as near as 0.57m/1.87ft (0.25x magnification). The lens includes Sony's built-in optical stabilization, and like other G Master lenses, it's dust- and weather-resistant.

100mm F2.8 GM MTF chart via Sony. Lens configuration via Sony.

Also new is the non-G-Master FE 85mm F1.8, a relatively compact and lightweight portrait prime for the E-mount system. It uses a 9-blade circular aperture, 'double linear motor system,' and is also dust- and moisture-resistant. The lens does not offer built-in stabilization.

85mm MTF chart via Sony. Lens configuration via Sony.

Both lenses are expected to ship in March. The FE 100mm F2.8 STF GM OSS will cost $1500, while the FE 85mm F1.8 will sell for $600.

Press Release

Sony Introduces 100mm F2.8 STF G Master™ with Highest Ever Quality Bokeh for an α Lens

New Full-frame 85mm F1.8 Mid-telephoto prime lens and Compact Radio-Controlled Flash announced as well

LAS VEGAS, Feb. 7, 2017 – Sony Electronics, a worldwide leader in digital imaging and the world’s largest image sensor manufacturer, has today introduced two new lenses for their popular line of E-mount interchangeable lens cameras.

Sony’s new lenses include one of their flagship G Master Series – an FE 100mm F2.81 STF GM OSS mid- telephoto prime lens (model SEL100F28GM) built to deliver breathtaking bokeh with a unique STF™ (Smooth Trans Focus) design, and a new compact, lightweight FE 85mm F1.8 mid-telephoto prime lens (model SEL85F18) that is a welcome addition to the bag of any hobbyist or enthusiast photographer looking to create amazing portraits.

They have also introduced a new powerful, compact flash (model HVL-F45RM) with radio-controlled wireless communication that is ideal for professional shooting with Sony’s lineup of α7 full-frame cameras.

FE 100mm F2.81 STF GM OSS Telephoto Prime Lens

A specially designed mid-telephoto, full-frame prime lens, the new 100mm STF is built to produce truly unique, magnificent and beautiful bokeh while maintaining the exceptional standard of resolution that is showcased by Sony’s entire line of flagship G Master series lenses, making it a powerful photographic tool for any portrait, fashion, nature or wedding photographer.

These impressive defocus capabilities are made possible by the lens’ advanced optical structure, as it features a newly designed 11-bladed aperture and a unique optical apodization lens element. Similar to a neutral density filter that increases in density towards the edges, the apodization element creates beautiful transitions of in-focus to out-of-focus areas within an image, making for exceptionally soft, smooth bokeh that adds depth and dimensionality. This allows the subjects to stand out against beautifully defocused elements in both the foreground and background, producing an image that is naturally pleasing to the eye. The design of the lens also ensures that vignetting is kept to an absolute minimum, ensuring optimum image quality.

Additionally, the new 100mm lens supports both contrast AF and focal-plane phase detection AF2, and has a high-precision, quiet direct drive SSM (Super Sonic Motor) system that ensures exceptionally fast and accurate AF performance. The SEL100F28GM also offers up to 0.25x close-up capabilities with a built-in macro switching ring, built-in Optical SteadyShot™ image stabilization, a customizable focus hold button, AF/MF switch, aperture ring and more. It is dust and moisture resistant as well3.

FE 85mm F1.8 Telephoto Prime Lens

The new 85mm F1.8 mid-telephoto prime lens offers an extremely versatile, lightweight and compact telephoto prime lens solution for a variety of Sony camera owners ranging from working professionals to emerging enthusiasts that have stepped up to full-frame or APS-C cameras for the first time. With its wide F1.8 aperture, it can produce impressive, exceptionally sharp portraits with soft background defocus that take advantage of its 85mm focal length and wide F1.8 maximum aperture.

The new prime lens features a 9-bladed circular aperture mechanism that ensures smooth, natural looking bokeh, and a double linear motor system to allow for fast, precise and quiet focusing. It also has a focus hold button that can be customized and assigned together with functions in the camera body like the popular Eye AF feature. There is a smooth, responsive focus ring and AF/MF switch as well, and the lens is also dust and moisture resistant3.

New Compact Radio-controlled Flash

Sony’s new HVL-F45RM flash enhances the radio-controlled lighting system capabilities of their growing system, offering a compact professional shooting solution when combined with the currently available wireless remote controller FA-WRC1M and receiver FA-WRR1.

The new flash, which is designed to complement the compact bodies of Sony’s E-mount camera lineup including full-frame α7 models, produces a maximum lighting output as expansive as GN454. This ensures sufficient illumination even when shooting with bounce lighting or high-speed-sync (HSS) flash. The radio capabilities of the HVL-F45RM allow it to be used as a transmitter or a receiver at up to 30m (approx. 98 feet5), making it an ideal fit for creative lighting with multiple flashes. Additionally, unlike optical flash systems, radio-control flashes do not require a direct line-of-sight between components to function properly, while also minimizing any impact that bright sunlight has on signal transmission and control.

The HVL-F45RM flash has an impressive battery life of up to 210 bursts, and can tilt up to 150o vertically, a complete 360o horizontally and up to 8o downward to maximize versatility. Usability has been maximized with a new large, bright and highly visible LCD display, an LED light, dust and moisture resistant design3 and a revamped menu system that mimics those of Sony’s newest camera systems.

Pricing and Availability

Both of the new lenses and the new flash unit will ship to authorized dealers throughout North America.

The new FE 100mm F2.8 STF OSS GM Telephoto Prime Lens will ship this March for about $1,500 US and $2,050 CA.

The new FE 85mm F1.8 Mid-Telephoto Prime Lens will ship this March for about $600 US and $800 CA.

Replacement lens hoods for each of the new models will also be available for purchase as well.

The new HVL-F45RM flash will ship this May for about $400 US and $550 CA.

1. T-number (T) =5.6
2. With compatible αcamera bodies. Please visit Sony support webpages for details.
3. Not guaranteed to be 100% dust and moisture proof.
4. Guide Number (GN) 45 (105mm, in meters at ISO 100)
5. Sony internal measurement

Specifications

 Sony FE 100mm F2.8 STF GM OSSSony FE 85mm F1.8
Principal specifications
Lens typePrime lens
Max Format size35mm FF
Focal length100 mm85 mm
Image stabilizationYesNo
Lens mountSony FE
Aperture
Maximum apertureF2.8F1.8
Minimum apertureF20F22
Aperture ringYesNo
Number of diaphragm blades119
Optics
Elements149
Groups108
Special elements / coatingsED and aspherical elements, Nano AR coatingED elements
Focus
Minimum focus0.57 m (22.44)0.80 m (31.5)
Maximum magnification0.25×0.13×
AutofocusYes
Motor typePiezoelectricLinear Motor
Full time manualYes
Focus methodInternal
Distance scaleNo
DoF scaleNo
Focus distance limiterYesNo
Physical
Weight700 g (1.54 lb)371 g (0.82 lb)
Diameter85 mm (3.35)78 mm (3.07)
Length118 mm (4.65)82 mm (3.23)
SealingYes
ColourBlack
Filter thread72.0 mm67.0 mm
Hood suppliedYes
Hood product codeALC-SH174ALC-SH150
Tripod collarNo