Decision tools · Mount Adapting

Will my lenses fit a different body?

Pick the mount your glass is on and the body you're thinking of moving to. We work out whether a plain adapter gets you there, show the millimetres it turns on, and say what it does to your framing.

37 mounts on record·flange distance, coverage and crop for each

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Answers focus and framing. Autofocus, aperture control and whether an adapter is actually made are separate questions.

Your pairing

Pentax K glass on a Leica M body

Adapter
Verdict
Pentax K45.46mm
− Leica M 27.80mm
Room for an adapter17.66mm

Works with a plain adapter

Pentax K sits 17.66mm further from the sensor than Leica M. You need a 17.66mm adapter, but it can be a plain one — a hollow metal spacer with no glass in it. The lens still reaches infinity focus and nothing is added to the optical path.

Coverage & framing. Both are Full frame, so the lens covers the sensor fully.

Leica M bodiesLeica M10-RLeica M11Leica M11-PLeica M11 Monochrom
Pentax K lensesLaowa 15mm f/4.5 Zero-D ShiftLaowa 20mm f/4 Zero-D ShiftPentax HD D FA 21mm f/2.4 ED Limited DC WRPentax HD D FA★ 50mm f/1.4 SDM AW

No adapter listed yet. We don't stock an adapter for this pairing; the verdict above is the flange-distance arithmetic.

GearFrame’s recommendations are guidance to help you decide, not professional advice. Specs, prices and compatibility can change, so check them with the retailer or manufacturer before you buy. Disclaimer

Every combination

Lens mounts down the side, current camera mounts across the top. Figures are flange focal distance in millimetres. Click any cell for the full answer.

NativeNative fitSame mount. The lens bolts straight on — no adapter, nothing lost.
AdapterWorks with a plain adapterYou still need an adapter, but only a plain one — a hollow metal spacer with no glass in it. Focus and image quality are unaffected.
ThinNeeds a thin adapterThe two mounts sit almost the same distance from the sensor, so any adapter has to be wafer-thin or flush. These exist for common pairings and often don't for rare ones.
OpticsOnly with corrective opticsA plain adapter cannot work — it would have to remove distance, which is impossible. Only an adapter with corrective glass inside will focus to infinity, and that costs sharpness and usually a stop of light.
Lens mountNikon Z16.00Fujifilm X17.70Sony E18.00Hasselblad X18.14Micro Four Thirds19.25Canon RF20.00Leica L20.00Fujifilm G26.70Pentax K45.46
Pentax 6x784.95 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapter
Hasselblad V74.90 AdapterAdapterAdapterAdapter•AdapterAdapterAdapterAdapterAdapter
Pentax 64570.87 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapter
Bronica ETR69.00 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapter
Mamiya M64563.30 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapter
Leica R47.00 AdapterAdapter•Adapter•AdapterAdapter•AdapterAdapter•AdapterThin
Nikon F46.50 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterThin•
Olympus OM46.00 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterThin
Contax/Yashica45.50 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterThin
M4245.46 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterThin•
Pentax K45.46 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterNative
Exakta44.70 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Topcon44.70 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Minolta/Sony A44.50 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterOptics
Rollei QBM44.46 AdapterAdapterAdapter•AdapterAdapterAdapterAdapterAdapterOptics
Canon EF44.00 Adapter•Adapter•Adapter•Adapter•Adapter•Adapter•Adapter•Adapter•Optics
Sigma SA44.00 AdapterAdapterAdapter•AdapterAdapterAdapterAdapter•AdapterOptics
Minolta SR43.50 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterOptics
Canon FD42.00 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterOptics
Canon FL42.00 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Konica AR40.50 AdapterAdapter•Adapter•AdapterAdapter•AdapterAdapter•AdapterOptics
Four Thirds38.67 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Contax Rangefinder34.85 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Nikon S34.85 AdapterAdapterAdapterAdapterAdapterAdapterAdapterAdapterOptics
Leica Screw Mount (M39)28.80 Adapter•Adapter•Adapter•AdapterAdapter•Adapter•Adapter•AdapterOptics
Leica M27.80 Adapter•Adapter•Adapter•Adapter•Adapter•Adapter•Adapter•Thin•Optics
Fujifilm G26.70 AdapterAdapterAdapterAdapterAdapterAdapterAdapterNativeOptics
Samsung NX25.50 AdapterAdapterAdapterAdapterAdapterAdapterAdapterOpticsOptics
Canon RF20.00 AdapterAdapterAdapterThinThinNativeThinOpticsOptics
Leica L20.00 AdapterAdapterAdapterThinThinThinNativeOpticsOptics
Micro Four Thirds19.25 AdapterThinThinThinNativeOpticsOpticsOpticsOptics
Hasselblad X18.14 AdapterThinThinNativeOpticsOpticsOpticsOpticsOptics
Canon EF-M18.00 AdapterThinThinOpticsOpticsOpticsOpticsOpticsOptics
Sony E18.00 Adapter•ThinNativeOpticsOpticsOpticsOpticsOpticsOptics
Fujifilm X17.70 ThinNativeOpticsOpticsOpticsOpticsOpticsOpticsOptics
Nikon 117.00 ThinOpticsOpticsOpticsOpticsOpticsOpticsOpticsOptics
Nikon Z16.00 NativeOpticsOpticsOpticsOpticsOpticsOpticsOpticsOptics

What this does and doesn't tell you

  • It answers focus and framing: whether a plain adapter reaches infinity, and what the sensor does to your field of view.
  • A dot (•) in a cell means we list at least one adapter for that pairing; pick the cell to see them. Elsewhere it doesn't promise an adapter is made — rare combinations often have none.
  • Electronic contacts, autofocus and aperture control are separate questions. Most adapters for legacy glass are fully manual.
  • On SLR-to-SLR pairings, mirror clearance can stop a lens fitting even when the numbers work.