Sony FE 100mm F2.8 STF GM OSS vs Sony FE 85mm F1.8

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FE 100mm F2.8 STF GM OSS compared with FE 85mm F1.8

	SonyFE 100mm F2.8 STF GM OSS	SonyFE 85mm F1.8
Overview
Released
Released	March 2017	March 2017
Optics
Lens type
Lens type	Prime	Prime
Focal length
Focal length	100 mm	85 mm
Maximum aperture
Maximum aperture	f/2.8	f/1.8
Minimum aperture
Minimum aperture	f/20	f/22
Optical construction
Optical construction	Thirteen elements in ten groups excluding the separate APD apodisation element	Nine elements in eight groups
Special elements
Special elements	Aspherical and ED glass elements plus an APD element with progressively reduced transmission towards the periphery	ED glass
Coatings
Coatings	Sony Nano AR coating	–
Diaphragm
Diaphragm	Eleven rounded blades; geometric aperture F2.8–F20, transmission T5.6–T22; aperture ring and camera display use T values	Nine rounded blades
Angle of view
Angle of view	24° full frame; 16° APS-C	29° full frame; 19° APS-C
Mount and compatibility
Mounts
Mounts	Sony E	Sony E
Image circle
Image circle	Full frame	Full frame
Image circle detail
Image circle detail	Full-frame coverage; 150 mm equivalent field of view on APS-C	Full-frame coverage; 127.5 mm equivalent field of view on APS-C
Teleconverter support
Teleconverter support	Not compatible with Sony E-mount teleconverters	Not compatible with SEL14TC or SEL20TC
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.57 m	0.8 m
Maximum magnification
Maximum magnification	0.25×	0.13×
Optical stabilisation
Optical stabilisation	Yes	No
Autofocus detail
Autofocus detail	Direct-drive SSM; contrast and focal-plane phase-detection autofocus support depends on camera compatibility	Double linear motor system
Focus distance detail
Focus distance detail	Macro switching ring selects 0.85 m–infinity or 0.57–1.0 m ranges; main minimum uses close-focus range	Minimum focus 0.8 m; smooth, responsive electronic manual-focus ring
Magnification detail
Magnification detail	0.14× in 0.85 m–infinity range; 0.25× in 0.57–1.0 m close-focus range; not a 1:1 macro lens	–
Stabilisation detail
Stabilisation detail	Built-in Optical SteadyShot; can work with compatible five-axis camera body stabilisation; no maker stop rating published	No lens stabilisation; compatible bodies provide stabilisation
Video features
Video features	Aperture click switch permits adjustment without click sound	–
Design
Dust and moisture resistant
Dust and moisture resistant	Yes	Yes
Filter diameter
Filter diameter	72 mm	67 mm
Maximum diameter
Maximum diameter	85.2 mm	78 mm
Length
Length	118.1 mm	82 mm
Weight
Weight	700 g	371 g (better)
Controls
Controls	Manual-focus ring, macro switching ring, AF/MF switch, OSS on/off switch, focus-hold button and aperture ring with click on/off switch	AF/MF switch and one customisable focus-hold button; no aperture ring
Filter detail
Filter detail	–	67 mm front filter thread
Weather resistance
Weather resistance	Dust and moisture resistant design; not guaranteed to prevent all ingress	Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Dimensions detail
Dimensions detail	85.2 mm maximum diameter × 118.1 mm length	–
Weight detail
Weight detail	Approximately 700 g lens; separate hood and caps excluded	Approximately 371 g lens; separate hood and caps excluded
Lens hood
Lens hood	ALC-SH147 round bayonet hood, supplied	ALC-SH150 round bayonet hood
In the box
In the box	ALC-SH147 hood, ALC-F72S front cap, ALC-R1EM rear cap and soft carrying case	ALC-SH150 hood, ALC-F67S front cap and ALC-R1EM rear cap; no case listed
Release detail
Release detail	Sony US announcement dated 7 February 2017 specifies March shipping in North America; exact first global sale day unconfirmed. Two independent full reviews read: Photography Blog Mark Goldstein on Alpha 7R II and OpticalLimits Klaus Schroiff, whose stabilisation assessment also uses Alpha 7R II. Preserve their conflicting raw distortion, vignetting and autofocus findings. Neither review material claim used as maker fact: Blog describes aluminium, OpticalLimits high-quality plastic. Blog sliding-focus-ring description is inconsistent with maker AF/MF switch. Geometric F numbers retained in main aperture fields; transmission explicitly qualified; no inferred predecessor link	Sony Hong Kong specified late March 2017. Sony Japan brought the initially planned April launch forward to 24 March 2017. Main date retains month precision for regional release. Photography Blog Mark Goldstein tested an Alpha 7R II in 2017; Digital Camera World Matthew Richards published in 2022. Their wide-open edge sharpness judgments differ. Maker AF/MF switch specification supersedes an inconsistent sentence in Photography Blog saying there are no barrel switches