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Sony FE 100–400mm F5.6–8 OSS vs Sony FE 400–800mm F6.3–8 G OSS

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyFE 100–400mm F5.6–8 OSSSonyFE 400–800mm F6.3–8 G OSS
Overview
ReleasedAugust 2026March 2025
Optics
Lens typeZoomZoom
Focal length100–400 mm400–800 mm
Maximum aperturef/5.6–8f/6.3–8
Minimum aperturef/32–45f/36–45
Optical construction15 elements in 10 groups27 elements in 19 groups
Special elementsTwo ED glass and two aspherical elementsSix ED elements
Coatings–Fluorine coating on front element
DiaphragmNine rounded blades11 rounded blades
Angle of view24°–6°10′ full frame; 16°–4°10′ APS-C6°10′–3°10′ full frame; 4°10′–2° APS-C
Mount and compatibility
MountsSony ESony E
Image circleFull frameFull frame
Image circle detailFull-frame coverage; 150–600 mm equivalent field of view on APS-CFull-frame coverage; 600–1,200 mm equivalent field of view on APS-C
Teleconverter supportCompatible with SEL14TC and SEL20TC; 2× extends physical focal range to 200–800 mm with a two-stop aperture reductionCompatible with SEL14TC and SEL20TC; 2× converter extends maximum physical focal length to 1,600 mm
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.86 m1.7 m
Maximum magnification0.41×0.23×
Optical stabilisationYesYes
Autofocus detailTwo linear motors; compatible with up to 120 fps AF/AE tracking on Alpha 9 III under Sony test conditions, with speed dependent on shooting conditions and compatibilityTwo linear motors; full-time DMF
Focus distance detailMinimum focus 1.13 m at 100 mm or 0.86 m at 400 mmMinimum focus 1.7 m at 400 mm and 3.5 m at 800 mm; PetaPixel rounds the long-end distance to 3 m, so the maker value is used
Stabilisation detailOptical SteadyShot; coordinated body stabilisation and Active Mode require a compatible camera; Sony publishes no stop ratingOptical SteadyShot; compatible stabilised bodies provide coordinated stabilisation; no maker stop rating published here
Video featuresBreathing compensation supported with compatible cameras; enabling it changes the field of view and image quality slightly and may not fully correct breathingOptical design suppresses focus breathing
Design
Dust and moisture resistantYesYes
Filter diameter67 mm105 mm
Maximum diameter78.2 mm119.8 mm
Length164.5 mm346 mm
Weight654 g2,475 g
ControlsCustomisable focus-hold button, combined AF FULL / AF infinity–3 m / MF switch, OSS on/off switch and zoom lockThree customisable focus-hold buttons, full-time DMF switch and focus-range limiter
Zoom designBarrel extends towards 400 mm; zoom lock prevents unintended extension when pointed downwardsInternal zoom maintains lens length and keeps the centre of gravity within a small range
Weather resistanceDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proofDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Weight detailApproximately 654 g lens; separate hood and caps excludedApproximately 2,475 g including the fixed tripod foot; separate hood, caps and strap excluded
Tripod mount–Non-removable rotating tripod foot
Lens hoodALC-SH188 round bayonet hoodALC-SH181 round bayonet hood with lock button and filter-access opening
In the boxALC-SH188 hood, ALC-F67S front cap and ALC-R1EM rear capALC-SH181 hood, ALC-F105S front cap, ALC-R1EM rear cap and lens strap; no case listed by Sony Japan
Release detailSony UK announced on 4 August 2026 and specified availability from the end of August 2026 at approximately £800. The separate Japanese launch date was 4 September 2026; month precision records the earlier UK on-sale window, with no exact UK day publishedSony UK announced on 26 February 2025 with March 2025 availability and an approximate £2,550 list price; first-sale precision remains the month

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