Leica L-Mount vs. Nikon F
Comparing 2 standards across 9 specifications. 9 key differences identified.
The Leica L-Mount (developed by Leica Camera in 2014 and formalized under the L-Mount Alliance with Panasonic, Sigma, DJI, and Leitz Cine in 2018) is a 4-tab bayonet mount featuring a 20.0 mm Flange Focal Distance, a 51.6 mm throat diameter, and a robust stainless steel clamping mechanism covering both full frame and APS-C formats.
The Nikon F-Mount (introduced in 1959 with the legendary Nikon F SLR) is one of the most storied lens mounts in photographic history, maintaining a continuous 46.5 mm Flange Focal Distance and 44.0 mm throat diameter for over 60 years. Spanning non-AI manual lenses to modern electronic-diaphragm AF-S/AF-E glass, over 100 million F-mount lenses were produced.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Flange Focal Distance (FFD)
|
20.00 mm (0.787 in) | 46.50 mm (1.831 in — longest FFD among major 35mm SLR mounts) |
|
Inner Throat Diameter
|
51.60 mm (2.031 in) | 44.00 mm (1.732 in) |
|
Bayonet Tabs
|
4 asymmetrical stainless steel locking tabs (high mechanical rigidity for cinema primes) | 3 locking tabs with counter-clockwise twist (opposite of Canon/Sony) |
|
Camera Systems
|
Panasonic Lumix S5 II / S5 IIX / S1H / BS1H, Leica SL2 / SL3 / Q series, Sigma fp / fp L, DJI Ronin 4D | Nikon F, F3, FM2, F5 (film), Nikon D850, D780, D6, D7500, D500 (digital DSLRs) |
|
Electronic Interface
|
8 gold-plated electronic spring contacts (standardized cross-manufacturer protocol) | — |
|
Alliance Partners
|
Leica Camera AG, Panasonic Corporation, Sigma Corporation, DJI, Ernst Leitz Wetzlar GmbH, Blackmagic Design | — |
|
Coverage Formats
|
SL (35mm Full Frame 36×24 mm) and TL (APS-C 23.6×15.7 mm) | — |
|
Historical Generations
|
— | Non-AI (1959) -> AI (1977) -> AI-S (1981) -> AF screw-drive (1986) -> AF-D (1992) -> AF-S Silent Wave (1998) -> AF-E Electronic diaphragm (2010s) |
|
Aperture Control History
|
— | Spring-loaded mechanical stop-down lever (moved to electromagnetic diaphragm in 'E' lenses) |