K&F CONCEPT M42-E IV PRO for M42 Mount Lens to Sony E FE Mount Camera Adapter Ring for Sony A6400 A7M3 A7R3 A7M4 A7R4

About this item:

* Adapter ring for M42 series lens to Sony E series body.

* Fully manual control, the shape is stable, not easy to slip, and safer.

* Red dot logo, precise alignment, easy installation and disassembly.

* The connection ring and the bayonet are tightly and smoothly combined, and there is no loose phenomenon.

* High-precision perfect transfer, aluminum-magnesium alloy ring body, durable, comfortable and smooth disassembly Lens macro function, and can focus at infinity.

Function & Note:

This lens adapter allows you mount your M42 screw mount lens to your Sony E camera.

Plz Note:'No Lens Attached' - Warning Message Appears: The position of the infinity mark [∞] of the telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes. The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity .

Attention:

Manual adapter without autofocus or aperture ring.

Skillful installation, don't too much force.

Adapting an APS-frame lens to a full-frame camera may generate vignetting, some cameras could correct it by adjusting APSC.

Adapting a full-frame lens to an APS-frame camera provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle. And it will magnify the focal length by 1.6 on Canon, 1.5 on Nikon and Sony, 2.0 on M4/3 camera.