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Sony E body + L39 lens

COMPATIBLE MF MA MAC

L39 rangefinder lenses are 100% compatible with NEX cameras.

Adapters are usually fashioned in a similar way: a black housing contains the E-mount lock, while the M39 thread is fixed by bolts in the other end. Loosening them with an Allen key allowsto set the rangedfinder dial into upright position. L39 lenses project a large enough image to cover the fullframe NEX sensor.

Rangefinder lenses tend to have a very short close focus point, but there's an ingenious solution for that. Some special Leica-M adapters are fitted with a flat heliodic threading, which allows to increase the focus distance by a few milimeters. While infinity focus will be lost temporarily, the near point will be closer (the lens will function kinda like a macro lens). Now, the L39 can be easily adapted to Leica M-, so combining both adapters will greatly increase the capabilities of your lens in a very simple manner:

The receptacle of certain L39 lenses, like the Jupiter-12 35mm f/2.8, may interfere with the mirror of E cameras' with APS-C sensors, but this rare exception isn't a concern with fullframe E cameras.

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Terminology

In terms of compatibility, we distinguish four separate categories:

COMPATIBLE
PARTIALLY COMPATIBLE
COMPATIBLE IN THEORY
NOT COMPATIBLE
This means that you'll be able to apply the lens on the camera in question with a proper adapter, and full focus range will be available with it (often with aperture control too). If AF is supported, you'll see it in the description.
This means that due to the flange focal depth or other factor this conversion would be normally unfeasible, but with some compromises (e.g. using a speedbooster adapter) can be made possible.
This means that the flange focal depth should make mounting and using inifinty focus possible, but for some reason there are no adapter rings available or other factors make it unviable.
This means that you won't be able to mount your lens due to mechanical incompatibility or the difference in flange focal depth doesn't make inifinity focus possible. Although numerous lenses can be mounted on cameras without infinity focus, but this cannot be considered actual compatibility.

Additional information for compatible variations:

MF
AF
MA
AA
SB
MAC
TS
manual focus (on the lens, with its own control ring)
autofocus available (AF controlled by the camera body)
manual aperture control (on the lens, with its own control ring)
automatic aperture control (controlled by the camera body)
speedbooster (focal reducer) adapters are available
macro (variable length) adapters are available
tilt-shift (or other flexible) adapters can be used

If you'd like to read more in-depth about compatiblity, you'll need to get familiar with flange focal depth, see this article.