Micro Four Thirds Mount vs. Nikon Z
Comparing 2 standards across 9 specifications. 9 key differences identified.
The Micro Four Thirds Mount, introduced in 2008 by Olympus and Panasonic as the first mirrorless system built as a dedicated open standard (rather than an adapted rangefinder mount, as with the earlier 2004 Epson R-D1), features a 19.25 mm Flange Focal Distance, a 38.0 mm throat diameter, and an 11-pin all-electronic bayonet interface. Governing an open consortium, it is used across OM System, Lumix, Blackmagic Design, and DJI aerial cameras.
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.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Flange Focal Distance (FFD)
|
19.25 mm (0.758 in) | 16.00 mm (0.630 in — the shortest FFD among current major full-frame mirrorless mounts) |
|
Inner Throat Diameter
|
38.00 mm (1.496 in) | 55.00 mm (2.165 in — the largest throat diameter among current major full-frame mirrorless mounts) |
|
Bayonet Tabs
|
3 symmetrical stainless steel tabs | 4 asymmetrical locking tabs with counter-clockwise twist (traditional Nikon direction) |
|
Electronic Interface
|
11 gold-plated electronic contacts (shared protocol between OM System and Panasonic) | 11 gold-plated contact pins |
|
Camera Systems
|
OM System OM-1 Mark II, Panasonic Lumix GH6 / G9 II, Blackmagic Pocket Cinema Camera 4K, DJI Inspire 3 X9 MFT | Nikon Z9, Z8, Z7 II, Z6 III, Zf (full frame), Z50, Zfc, Z30 (DX APS-C) |
|
Historic Milestone
|
First mirrorless system built as a dedicated open standard, launched with the Panasonic Lumix G1 (2008) -- the earlier 2004 Epson R-D1 was a mirrorless interchangeable-lens camera, but on an adapted rangefinder mount, not a purpose-built open standard | — |
|
Consortium Members
|
OM Digital Solutions (Olympus), Panasonic, Blackmagic Design, DJI, Sharp, Voigtländer, Laowa | — |
|
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 |