Head to head · specs cited · drawn to scale

Leica M6 vs Olympus OM-1 (film)

Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.

The 3 biggest published differences

Weight (body): the OM-1 leads at 490 g vs the M6's 575 g.
Type: M6 has 35mm rangefinder; OM-1 has 35mm SLR.
Lens mount: M6 has Leica M; OM-1 has Olympus OM.

	M6 Leica M	OM-1 Olympus OM
Overview
Type	35mm rangefinder	35mm SLR
Format	35mm	35mm
Lens mount	Leica M	Olympus OM
Released	1984–2002 (reissued 2022)	1972-1988
Film camera
Film format	35mm	35mm
Metering	TTL selective metering, LED display in finder	Through-the-lens CdS exposure meter, needle in viewfinder, center-weighted
Shutter	Horizontal-travel cloth focal-plane	Horizontal-travel focal-plane shutter, fully mechanical
Shutter speeds	1 s – 1/1000 + B	B, 1 sec to 1/1000 sec
Battery	2× LR44 / SR44 (meter only)	1x 1.35V mercury cell (originally PX625, meter only; camera fires without battery)
Body & Handling
Dimensions (W×H×D)	138.6 × 77 × 38 mm	136 × 83 × 50 mm
Weight (body)	575 g	490 g
Weather sealing	—, not published	—, not published
Shutter durability	—, not published	—, not published
Price
Launch price	—, not published	—, not published
Size, to scale
Front view, drawn at the same scale from each maker's published W×H (mm).
Smallest bag that fits
Body	Think Tank Mirrorless Mover 20 V2 Fits body only · View at B&H Photo Video	Think Tank Mirrorless Mover 20 V2 Fits body only · View at B&H Photo Video

Sources

official · M6 specifications: Leica Camera AG (M6 reissue datasheet, PDF) · accessed 2026-07-10

“Dimensions (width x height x depth) approx. 138.6 mm ... Weight approx. 575 g. Figures are from Leica's current M6 reissue datasheet; the original 1984 manual contains no spec table, so we cite the reissue with that caveat.”

official · OM-1 specifications: camera-wiki.org (dimensions corroborated by an original Olympus OM-1 brochure PDF at mattsclassiccameras.com, but that PDF is a scanned image with no extractable text; no official Olympus museum page could be reached) · accessed 2026-07-10

“136×83×50 mm (5.4×3.3×2.0 in) ... 490 g (17 oz) (OM-1); 510 g (18 oz) (OM-1n)”

M6 dimensions carry medium confidence (archived-source caveat on its fit page).

OM-1 dimensions carry medium confidence (archived-source caveat on its fit page).

Open in the comparator (add a 3rd/4th body) Bags for the M6 Bags for the OM-1 Fit checker

Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.

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