WIDE ANGLE LENS FOR SEAFROGS HOUSINGS. FIT THE FOLLOWING HOUSINGS - AND LENSES: Meikon/Seafrogs A7 II, A7R II, A7SII; A7III SeaFrogs GH5 & GH5S COMPATIBLE LENSES FOR SONY Sony FE 28-70mm F3.5-5.6 OSS (Autofocus only, Manual zoom not available) Sony FE 24-70mm F4 ZA OSS Carl Zeiss Vario Tessar T* (Autofocus only, Manual zoom not available) Sony Vario-Tessar T* FE 16-35mm F4 ZA OSS (Autofocus only, Manual zoom not available) Sony FE 28mm F2 (Autofocus only) Sony FE 50mm F1.8 (Autofocus only) Sony FE 55mm F1.8 ZA Carl Zeiss Sonnar T*(Autofocus only) COMPATIBLE LENSES FOR PANASONIC Panasonic Lumix G Vario 7-14mm F4 ASPH (Autofocus only, Manual zoom not available) Panasonic Leica DG Vario-Elmarit 12-60mm F2.8-4.0 ASPH Power OIS (Autofocus only, Manual zoom not available) Panasonic Lumix G X Vario 12-35mm f/2.8 II ASPH. POWER OIS (Autofocus only, Manual zoom not available) Panasonic Leica DG Nocticron 42.5mm f/1.2 ASPH. POWER OIS (Autofocus only, Manual zoom not available) Olympus M.Zuiko Digital ED 7-14mm F2.8 PRO (Autofocus only, Manual zoom not available)

【See Another World】: We can see a myriad of wonderful things in the world. But the micro world is invisible to the naked eye. With the 1:1 magnification, TTArtisan 40mm f2.8 Macro lens brings you the novel perspective to roam freely in the extraordinary micro world. 【High Image Quality】: The lens structure is 8 elements in 7 groups, there are two Extra low-dispersion glasses that help to minimize chromatic aberrations across the frame, provides impressive image quality and color accuracy. 【Creamy dreamy bokeh】: Photography is the art of optics. Maximum aperture F2.8 allows you to create freely even in low light environment. Besides, large aperture makes a particularly captivating background which could be effectively used to adds the depth of photograph, draws the viewers'eyes to the subject. 【More than Macro Photography】: 40mm APS-C lens sees about the same angle of view as a 60mm full-frame, which is equivalent to the perspective of the standard lens. It has an excellent performance in portrait as well since it has a close focus feature and large aperture. 【Compatible with M43-mount】: OLYMPUS EPM1、EPM2、EPL1、EPL2、 EPL3、EPL5、 EPL6、 EPL7、 EPL8、EPL9、 E-P1、 E-P2、 E-P3、 E-P5、 E-P6、 E-M1、 E-M5、 E-M10、 E-M10II、 E-M10III、PEN-F, Panasonic G1、G2、G3、G5、G6、G7、G85、GF1、GF2、GF3、GF5、 GF6、 GF7、GF8、 GF9、GX1、 GX7、GX8、GX9、GM1、GM5、 GM10、GH1、GH2、GH3、 GH4、 GH5