Very important!!! Please open your eyesturn your braincarefully read the product details be a wise customer use this lens normally, both of the ensuing situations needs to be met simultaneously:1 The digicam must be a mirrorless camera, DSLR digicam isn't always suitable greatest distinction between DSLR cameras and mirrorless cameras is:Mirrorless camera: without reflector and pentaprism, veritably using an digital viewfinder camera:with reflector and a pentaprism, veritably using an optical viewfinder Please confrim your digital camera is Mirrorless digital camera are hahaxiao,thanks for your figuring out using this lens, please set your digital camera to:release shutter with out lens hooked up to set the camera to "release shutter with out lens attached" CanonEOS M10 as an example,as the following photo are hahaxiao store,thanks for your understanding If you truly don&;t understand, please touch us first before creating a purchase This lens does not have focusing function ,can now not concentration It is a disposable camera lens long as both of the above circumstances are met simultaneously, you possibly can shoot instantly without focusing Before use, please switch on the "release shutter with out lens attached" function of the digital camera lens go well with for full body mirrorless camera and APS-C mirrorless digicam lens only go well with for mirrorless camera,do not swimsuit for SLR camera ought to be set to:release shutter without lens attached With this lens, mirrorless cameras can soon grow to be level and shoot cameras don&;t should focus, you possibly can shoot at any time the taking pictures ride of a point-and-shoot cameraDepth of field: 1 meters to infinity are hahaxiao store,thanks on your assist mount,32m/f10L39 mount,30mm/f10