This is an ultra wide-angle fisheye lens that is very compact yet creates sharp, high resolution images.

Specification:

Focal Length: 12-40mm  
Aperture Range: F3.5-5.6
Optical Structure: Zoom Lens
Focus: Auto Foucs & Manual Focus
Support Camera Mount: Micro 4/3 (M4/3) Mount
Lens Coating: MC Multilayer
Minimum Focus Distance: 0.35m
Optical Design: 11 elements in 9 groups
Filter Thread: 49mm 
Dimensions: 60 x 67 mm
Weight: 6.56oz / 186 g

Compatiable With:

For OLYMPUS M4/3-mount
EPM1、EPM2、EPL1、EPL2、EPL3、EPL5、EPL6、EPL7、EPL8、EPL9、E-P1、E-P2、E-P3、E-P5、E-P6、E-M1、E-M1II、E-M5、E-M5II、E-M10、E-M10II、E-M10III etc. 

For Panasonic M4/3-mount
G1、G2、G3、G5、G6、G7、G9 G85、GF1、GF2、GF3、GF5、GF6、GF7、GF8、GF9、GF10、GX1、GX7、GX8、GX9、GX85、GM1、GM5、GM7、GM10、GM20、GH1、GH2、GH3、GH4、GH5、GH5S、GH6 etc.

Packaging Including:

1 * 12-40mm F3.5-5.6 AF Lens
1 * Front lens cap
1 * Rear lens cap