Nikon Z vs. Sony E-Mount
Comparing 2 standards across 9 specifications. 9 key differences identified.
The Nikon Z Mount (introduced in 2018 for the Z-series mirrorless system) features the shortest Flange Focal Distance (16.0 mm) and the widest inner throat diameter (55.0 mm) among current major full-frame mirrorless mounts (Sony E, Canon RF, Leica L). This geometry enables extreme optical designs, including the ultra-fast NIKKOR Z 58mm f/0.95 S Noct.
The Sony E-Mount (introduced in 2010 for NEX mirrorless and expanded in 2013 to 35mm full frame as FE) is a 3-tab bayonet lens mount featuring a 18.0 mm Flange Focal Distance (FFD), a 46.1 mm throat diameter, and a 10-pin high-speed electronic interface. It is the most widely adopted open third-party full-frame mirrorless mount in the photographic industry.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Flange Focal Distance (FFD)
|
16.00 mm (0.630 in — the shortest FFD among current major full-frame mirrorless mounts) | 18.00 mm (0.709 in — distance from lens mount mating surface to sensor plane) |
|
Inner Throat Diameter
|
55.00 mm (2.165 in — the largest throat diameter among current major full-frame mirrorless mounts) | 46.1 mm (1.815 in) |
|
Bayonet Tabs
|
4 asymmetrical locking tabs with counter-clockwise twist (traditional Nikon direction) | 3 asymmetrical locking tabs with clockwise twist lock |
|
Electronic Interface
|
11 gold-plated contact pins | 10 gold-plated leaf contact pins (supports real-time eye-AF tracking, OSS, active lens breathing compensation) |
|
Camera Systems
|
Nikon Z9, Z8, Z7 II, Z6 III, Zf (full frame), Z50, Zfc, Z30 (DX APS-C) | Sony A7 / A9 / A1 series, FX3 / FX6 cinema lines, A6000-series APS-C bodies |
|
Max Theoretical Aperture
|
Mount geometry (throat diameter and FFD) permits faster designs than F-mount allowed; the fastest lens actually shipped is the Z 58mm f/0.95 S Noct -- claims of a precise theoretical f/0.58 limit are back-of-envelope extrapolations, not a published Nikon figure | — |
|
Legacy F-Mount Adaptability
|
Nikon FTZ / FTZ II adapter (30.5 mm spacer) provides full AF/AE with AF-S and AF-P NIKKOR lenses | — |
|
Full-Frame vs APS-C
|
— | FE lenses cover 36×24 mm full frame; E lenses cover APS-C (auto-crops on full-frame bodies) |
|
Third-Party Protocol License
|
— | Open disclosure to lens manufacturers (Sigma, Tamron, Zeiss, Samyang, Voigtländer) |