Feature:
Increase exposure to 1 stop, and you can use a faster shutter speed to shoot an image. Works fine, closely combined with the bayonet smooth, like the original lens. Full manual operation, manual focus, manual iris adjustment can be achieved with body manual exposure, aperture priority exposure, combined infinite focus.

Specification:
Max. f-stop pass through: 1.4
Optical design (lenses / groups): 4/3
Focal length extension: 0.7x
Image diameter (mm): 28.5
Bayonet front: 135 full frame lens
Bayonet back: Sony NEX / Fuji X / Micro 4/3

Note:
You must set the camera to "Shooting without lens" mode to ON before use. Avoid direct shooting to light sources, or otherwise, blue spot occurs.

Compatible with:
M42 Lens
All Micro 4/3 Mount Camera, such as:

Panasonic G110/G100/G95/G91/G90/GX9/GF10/GH5S/G9/GX850/GX800/GF9/GH5/G85/G80/GX85/GX80/GX7II/GF8/GX8/G7/GF7/GM5/GH4/GM1/GX7/GX1/GH3/GH2/GH1/G6/G10/G5/G3/G2/G1/GF6/GF5/GF3/GF2/GF1

Olympus E-M1 III/E-M10 IV/E-M5 III/E-PL10/E-M1X/E-PL9/E-M10 IV/E-M10 III/E-M1 II/E-PL8/Pen-F/E-M10II/E-M5 II/E-PL7/E-M10/E-M5/E-M1/E-PM2/E-PM1/E-PL5/E-PL3/E-PL2/E-PL1/E-P5/E-P3/E-P2/E-P1

Blackmagic Design Pocket Cinema Camera Original & 4K

Z CAM E2 / E2C Professional 4K, E2-S6 Super 35 6K Cinema Cameras

Kodak Pixpro S-1 and YI M1

Sharp 8k

Package Include:
1 X speed booster/focal reducer lens adapter
1 X rear cap
1 X body cap