M39 Leica adapted to Micro Four Thirds

M39 to Micro Four Thirds

These are some of the least expensive adapters starting at $5 each. Spend a few dollars more for the adapter with an adjustable chrome bushing so you can align your lens’s focusing scale.

The chrome bushing needs to be rotated 90 ° counter-clockwise to get the scale on top.

The chrome bushing needs to be rotated 90 ° counter-clockwise to get the scale on top.

There are 3 set screws on the outside of the adapter. Loosen them with a 1.5mm allen wrench and rotate the chrome bushing until the scale is on top.

There are 3 set screws on the outside of the Micro four thirds lens adapter. Loosen them with a 1.5mm allen wrench and rotate the chrome bushing until the scale is on top.

M39 Jupiter 8 on my E-PL2 with the distance scale properly aligned.

M39 Jupiter 8 on my E-PL2 with the distance scale properly aligned.

M39 Jupiter 8 on an Olym­pus E-PL2. 1/10 sec 200 ISO with tripod.

M39 Jupiter 8 on an Olym­pus E-PL2. 1/10 sec 200 ISO with tripod.

M39 Jupiter 8 on an Olym­pus E-PL2. 1/60 sec 200 ISO.

M39 Jupiter 8 on an Olym­pus E-PL2. 1/60 sec 200 ISO.

Jupiter 8 or 50mm f/2 Sonnar?

The Jupiter 8 is a Soviet copy of the Carl Zeiss Jena 50mm f/2 Sonnar used on the Contax rangefinder cameras. The 50mm Jupiter 8 in M39 has a focusing helicoid in the lens but it lacks one in the Kiev/Contax mount. Kiev and Contax bodies have focusing mechanisms for the 50mm lenses built into the cameras.

If you want to use a 50mm Sonnar on your MFT camera, you’ll need to spend $100-300 for an adapter that has a focusing helicoid. Lens adapters for telephoto lenses that use the outer bayonet on the Contax sell for around $15.